BÖIKZMÖIND - A Film About Bicycles, Not A Bicycle Film
BÖIKZMÖIND is a 30 minute documentary film about riding fixed gear bikes in beautiful Bristol. The film shows the diverse cross section of riders and asks why ride bikes with no gears in a city full of hills.
Shot in Bristol and made on a shoe string budget, the film shows what's possible when like-minded people with a passion for two wheels come together.
Fixed Gear Bicycles:
BÖIKZMÖIND is a 30 minute documentary film about riding fixed gear bikes in beautiful Bristol. The film shows the diverse cross section of riders and asks why ride bikes with no gears in a city full of hills.
Shot in Bristol and made on a shoe string budget, the film shows what's possible when like-minded people with a passion for two wheels come together.
Fixed Gear Bicycles:
The oldest and
simplest type of bicycle is the "fixed-gear" bicycle. This is a
single-speed bike without a freewheel: that is, whenever the bike is in motion,
the pedals will go around. You cannot coast on a fixed-gear machine.
Many
enthusiastic cyclists ride such bicycles by choice, at least part of the time.
Why would anybody do that? It is not easy to put into words. There is an almost
mystical connection between a fixed-gear cyclist and bicycle: it feels like an
extension of your body to a greater extent than does a freewheel-equipped machine. If you are an enthusiastic,
vigorous cyclist, you really should give it a try.
There are many
reasons, including: Fun, Fitness, Form, Feel & 'Ficciency!
Fixed for Fun
It takes a bit
of practice to become comfortable on a fixed gear. Most cyclists, trying it for
the first time, will automatically try to coast once the bike gets up to a
certain speed. The bike will not allow this, and it is disconcerting. It takes
a couple of weeks of regular riding to unlearn the impulse to coast, and become
at ease on a fixed gear.
It is worth
going through this learning experience, however, because once you do so, you
will discover a new joy in cycling. When you ride a fixed gear, you feel a
closer communion with your bike and with the road. There is a purity and
simplicity to the fixed-gear bicycle that can be quite seductive. Somehow, once
you get past the unfamiliarity, it is just more fun than riding a bike with
gears and a freewheel! If you won't take my word for it, read some Fixed-Gear
Testimonials.
Fixed for Fitness and Form
Riding a fixed
gear on the road is excellent exercise. When you need to climb, you don't need
to think about when to change gears, because you don't have that option.
Instead, you know that you must just stand up and pedal, even though the gear
is too high for maximum climbing efficiency. This makes you stronger.
If you have the
option of gearing down and taking a hill at a slow pace, it is easy to yield to
the temptation. When you ride a fixed gear, the need to push hard to get up the
hills forces you to ride at a higher intensity than you otherwise might. Really
steep hills may make you get off and walk, but the hills you are able to climb,
you will climb substantially faster than you would on a geared bicycle.
When you
descend, you can't coast, but the gear is too low. This forces you to pedal at
a fastercadence than you would choose on a
multi-speed bicycle. High-cadence pedaling improves the suppleness of your
legs. High rpm's force you to learn to pedal in a smooth manner -- if you
don't, you will bounce up and down in the saddle.
Most cyclists
coast far too much. Riding a fixed-gear bike will break this pernicious habit.
Coasting breaks up your rhythm and allows your legs to stiffen up. Keeping your
legs in motion keeps the muscles supple, and promotes good circulation.
Fixed for Feel
A fixed gear
gives you a very direct feel for traction conditions on slippery surfaces. This
makes a fixed gear particularly suitable for riding in rainy or icy conditions.
This same feel
for traction will help you learn exactly how hard you can apply your front
brake without quite lifting the rear off the ground. Most fixed-gear riders
only use a front brake--a rear brake is quite unnecessary on a fixed-gear
machine.
Because you are
more solidly connected to the bike, you have better control of it in bumpy
conditions or in difficult corners.
On any road
bike, the rider must learn to un-weight the saddle to ride over bumps. Most
cyclists coast to do this. A fixed-gear rider will learn to "post"
over bumps without breaking stride.
Fixed for (e)Fficiency
A fixed-gear
bike is considerably lighter than a multi-speed bike of comparable quality, due
to the absence of the rear brake, derailers, shift levers, and extra sprockets. A fixed-gear bike also has a
substantially shorter chain.
A properly
set-up fixed gear has a perfectly straight chainline.
This, plus the absence of derailerpulleys, makes a real improvement in
the drive-train efficiency, an improvement you can feel.
Track Bicycles
Many people
think of fixed-gear bikes and track bikes
as synonymous, but they aren't.
Track bicycles
are designed for use on velodromes (bicycle tracks). Some riders do ride them
on the road, but they are less than ideal for road use.
Track bicycles
are set apart from road bicycles by more than the fixed
gear.
Track bicycles
do not have brakes. Brakes are unnecessary on tracks, since everybody is moving
in the same direction, and none of the other cyclists you are riding with can
stop any faster than you can. (Most tracks forbid the use of bikes that have
brakes, as a safety measure!)
It is possible
to fit a brake to some track bikes, but it is often quite difficult, due to the
extremely tight frame clearances. Extremely short-reach brakes
are needed. Track bike fork blades
are usually round instead of oval, as those of a road bike are. This makes them
stiffer and more rigid laterally, a good thing for hard out-of-the-saddle sprinting,
which can apply considerable side loads. Unfortunately, they are less rigid
front-to-back, so if you fit a brake, the fork may flex objectionably when the
brake is applied.
The frame
geometry of a track bike is also different from that of a road
bike. Since tracks don't have bumps or potholes, they are built stiffer, with
more-upright frame angles. This is good for maneuverability, but causes them to
ride harshly on real-world pavement.
In addition,
track bikes have very tight tire clearance, since there is no reason to use any
but the narrowest tires on the track. This can limit your choices for on-road
use.
Track bikes
don't have quick-release wheels, making it harder to
fix a flat on the road.
Track bikes
don't permit the mounting of fenders,
limiting their usefulness in sloppy conditions.
Some riders do
prefer to ride track bikes on the road, especially those who are or were into
track racing, and have become used to the feel of a track bike. Track-bike
riding has attained cult status in New York City, in particular.
If you're
interested in track racing, check out Mike Gladu's "The 'drome" site
Fixed-Gear Road Bicycles
Despite the
coolness factor of true track bikes, a fixed-gear road bicycle is what I would
recommend for the road cyclist in search of the benefits of fixed-gear riding.
This would
typically be an older road bike, modified into a fixed-gear machine. Most older
"ten-speeds" are good candidates for this sort of modification.
These bikes have
the appropriate geometry for comfortable road riding, come with brakes,
quick-release wheels, fender clearance, sometimes even water-bottle braze-ons.
You could buy a
ready-made fixed-gear road bike, but I have a detailed article on Fixed
Gear Conversions that will help you build your own.
Drivetrain
1/8" or 3/32" Chain?
Many track bicycles use a wider chain than is common on
multi-speed bicycles. Derailer-type chain has a nominal internal width of
3/32". Single-speed bicycles, including most track bicycles, use the wider
1/8" size. You can buy fixed-gear sprockets in both sizes.
(Some people
mistakenly refer to the width as "pitch", speaking of "road
pitch" or "track pitch". This is an error. The pitch is the
center-to-center distance between the rollers, and all modern bicycle chain has
the same pitch, 1/2"/12.7 mm.)
I would
generally advise using the 3/32" (derailer) size. It is lighter, more
compatible with your existing chainwheels, and likely to run smoother if the
chainline is less than perfect, due to beveled side plates. In my experience,
3/32" chain is no less durable or reliable than 1/8".
For the true
retro fan, another option is 1" x 3/16" chain. This used to be common
on track bikes. This requires special sprockets with only half as many teeth as
standard 1/2" pitch sprockets. Serious old-time trackies used
"block" chain, which had no rollers. This is no longer available.
Roller chain is still sometimes findable in this size.
Even more
obscure is the 10 mm pitch chain promoted by Shimano a
few years back. The idea was to save weight by making everything littler. An
idea whose time never came.
Chain/Sprocket Life Extension
If you want to get the maximum life from your chain and
sprockets, select even-numbered sizes when possible. See my Chain
Life Extension Article.
Centering Chainwheels
The chain tension on a fixed gear is quite critical,
and is regulated by moving the rear axle back and forth in the forkends. If the
chain is too tight, the drivetrain will bind, perhaps only at one angle of the
pedals (chainwheels are not usually perfectly concentric). It should be tight
as it can be without binding. If the chain is too loose, it can fall off, which
is quite dangerous on a fixed gear.
Set the rear
axle so that the chain pulls taut at the tightest part of the cranks' rotation.
One at a time, loosen up each of the stack bolts, and tighten it back just
finger tight. Spin the crank slowly and watch for the chain to get to its
tightest point. Strike the taut chain lightly with a convenient tool to make
the chain ring move a bit on its spider. Then rotate the crank some more,
finding the new tightest spot, and repeat as necessary.
This takes a
little bit of your hands' learning how hard to hit the chain, and how loose to
set the stack bolts, but it is really quite easy to learn.
Tighten up the
stack bolts a bit and re-check. Tighten the stack bolts in a regular pattern,
like the lug nuts on a car wheel. My standard pattern is to start by tightening
the bolt opposite the crank, then move clockwise 2 bolts (144 degrees), tighten
that one, clockwise 2 more, and so on. Never tighten two neighboring bolts in a
row. You may prefer to go counterclockwise, but try to get in the habit of
always starting at the same place and always going the same way. This reduces
the chances of accidentally missing a bolt.
Once you have
the chainrings centered and secured, adjust the position of the rear axle to
make the chain as nearly tight as possible without binding. Notice how freely
the drive train turns when the chain is too loose. That is how freely it should
turn when you are done, but with as little chain droop as possible.
Rear Wheel Installation
When your install the rear wheel on a fixed-gear
bicycle -- or any bicycle which has only a chainwheel and sprocket, no
additional pulleys --, there are basically three things you need to adjust
simultaneously:
• The wheel needs to be straight.
This basically means that the tire needs to be centered between the
frame's chainstays. If it is properly dished,
and you get it centered between the chainstays, it is properly aligned.
•
The chain tension needs to be correct. (See
previous section )
• The axle nuts or quick
release skewer need to be tight.
Note: if you have a nutted axle, it is vitally important that
the threads be properly lubricatedwith grease or oil. You should also have
grease or oil on the contact surface where the axle nut presses against the
washer that contacts the frame.
Some folks who
are used to derailer bikes find wheel installation frustrating, especially with
a nutted hub. This is usually because they don't know the technique of "walking"
the wheel back and forth in the fork ends.
Start by
installing the wheel at approximately the correct position and tightening the
axle nuts. They don't need to be super tight at this stage, but should more
than finger tight. Check the chain tension and wheel alignment.
Most likely, the
chain will be a bit loose, but perhaps the wheel is correctly aligned.
Loosen one of the axle nuts and push the tire to the side so
that the loose side of the axle moves to the rear, then tighten the axle nut
you loosened.
Now the chain
tension should be better, but the wheel is no longer centered between the
chainstays. Loosen the other axle nut and re-center the wheel
in the frame. This will actually tighten the chain a little bit more.
The key is to
keep one or the other of the axle nuts tight at all times, and "walk"
the wheel forward and back.
This takes a bit
of practice and getting used to how much axle movement is needed to adjust a
given amount of chain droop, but it isn't really hard as long as you keep one
side secured at all times.
[I like to leave
the right-side axle nut a bit loose, get the chain a bit too tight, and tap the
chain with the wrench as Sheldon describes for centering chainwheels. This way,
I can move the rear wheel forward just the tiny bit needed to make the chain
run smoothly. The wheel will then be skewed, and I need to readjust the left
end of the axle, but this has little effect on the chain. -- John Allen]
Note, this
technique doesn't work with a quick release hub, but those are generally easier
anyway.
Gearing
Gear choice for a fixed gear is a very personal matter,
and will depend on your style, your goals, and the terrain you ride in.
I live in New
England, with small rolling hills. For a bike with normal road-type wheels and
165 mm cranks, I find that 42/15 suits me best. This gives a gain ratio
of 5.77 (75.6" / 6.05 m gear). This is low enough that I
can make it up the hills where I usually ride, but high enough that I can go
reasonably fast down the other side.
Racers using a
fixed gear for winter training usually like a considerably lower gear to
improve their spinning technique.
Those who live
in the flatlands will likely prefer something substantially higher. When I
visit my sister in Illinois, I flip my wheel around so that I can use the
42/14, a gain ratio of 6.18 (81.0" / 6.48 m).
Generally, the
higher the gear, the more fun the ride, as long as your gear is low enough to
let you climb the steepest hill you need to climb.
Time-trialists
often prefer something higher yet. (Many British time-trialists prefer a fixed
gear for these road events.) Beryl Burton, probably the greatest time-trialist
in history, used a fixed gear almost exclusively. If I recall correctly, she
usually ran a 52/14 or 52/13!
The higher your
gear, the more desirable it is to have a brake on
your bike. There are two reasons for this:
•
Just as a low gear lets you apply a higher forward force to the tire for
hill climbing, a low gear also allows a greater resistant force at the tire for
the same amount of leg effort.
•
The lower your gear, the lower your maximum speed will be, and if you're
not going so fast you don't need as powerful a brake.
If you plan to
do skip stops on a regular basis, you might
also consider the number of skid
patchesyour chosen gear ratio will create.
Big or Small?
Once you have decided on your gear ratio, then there's
the question of which of several different equivalent sprocket/chainring
combinations to use.
For instance,
36/12, 39/13, 42/14, 45/15 and 48/16 all give the same 3:1 ratio. Which to
choose?
Bigger
|
Smaller
|
|
Good:
|
•
Slightly less friction
•
Longer chain/sprocket life
•
Less chain tension
|
•
Slightly lighter
•
More log-jumping clearance
•
More chainstay clearance
|
Bad:
|
•
Slightly heavier
•
Chainstay clearance may be a problem on some frames
|
•
Rapid chain/sprocket wear
•
Greater chain tension (increased likelihood of the
axle's slipping in the frame)
|
These
differences are mostly pretty minor. Most riders will be best served by a
chainring somewhere in the 30s for technical off-road use, 40s for road or
bike-path use, low 50s for track use.
Since 42-tooth
rings are very commonly available on road cranksets, this size is particularly
popular for conversions.
If you use a
flip/flop hub, running smaller sizes gives you a bigger gearing difference for
each tooth difference on the flip flop.
Flip-Flop Hubs
Many fixed-gear bikes are equipped with
"flip-flop" hubs, designed to accept sprockets on either side. These
permit a choice of two different gears by removing the rear wheel and turning
it around.
The most common
use for a flip-flop hub is to have a fixed sprocket on one side, and a
single-speed freewheel on the other side. Usually the freewheel will be 1 or 2
teeth larger than the fixed sprocket.
The idea is
that, most of the time you would ride the fixed gear, but if you found your
self far from home and getting tired, or were in unusually hilly terrain, you
would turn the wheel around and use the freewheel. This helps two ways:
•
The lower gear will make it easier to climb the hills.
•
The freewheel will let you rest (coast) on the descents (which could be
painful with the lower gear if it were fixed.)
For each tooth
difference, the axle position in the forkend will change by 1/8" (3 mm.)
Also, you should
have two brakes if you will be using a freewheel.
You can also use
two different-sized fixed sprockets on a flip-flop hub. Generally I would
recommend only a one-tooth difference in this case. I run 14 and 15 with a 42
front myself on a couple of my own bikes.
Most flip-flop
hubs are only threaded for a lockring on one side, but the sprocket/freewheel
thread is the same, so you can screw a fixed sprocket onto the freewheel side.
I'd put the smaller sprocket on the side without the lockring, because it's
less likely to come unscrewed.
There are
double-fixed flip-flop hubs, and, to me, this is the most desirable
configuration. This arrangement is the most versatile, because you can set it
up either with 1 or 2 fixed sprockets, or 1 or 2 freewheels.
Any standard
track hub can also be used with a single-speed freewheel just by leaving the
lockring off. The thread is the same. Sometimes people worry because the hub
thread isn't as deep as on a freewheel-specific hub, but this is never a
problem with a single-speed freewheel.
For more on flip-flop hubs, see the
section on fixed-gear mountain bikes.
BMX Flip-Flop Hubs
There's another
type of "flip-flop" hub generally used for BMX applications. This
type is threaded for two freewheels, no fixed gear. One side is the standard
1.375" thread, the other side is a smaller metric thread. This is designed
to permit the use of smaller freewheels than will normally fit a full-sized
hub, 14 & 15 teeth.
Pedals
The most important characteristic to look for in
choosing pedals for a fixed-gear bike is good ground
clearance. You should also choose pedals that are easy to get in and
out of, because both operations are somewhat complicated by the motion of the
pedals.
Generally, I
recommend using whatever pedal/shoe system you are most used to. Getting used
to fixed-gear riding is challenge enough without also trying to get used to a
new pedal system at the same time!
When I used to
use toe-clips and straps, I fit two toe straps to each pedal, partly because
they help keep my feet in better alignment (since I don't use cleats) and
partly for safety. Toe straps can get highly stressed on a fixed-gear bicycle,
and if they break, unpleasant consequences may ensue.
Sometimes,
novice fixed-gear riders will try to use plain pedals with no form of retention
system. I strongly advise against this. Riding fixed with plain pedals is
an advanced fixed-gear skill, only recommended for experienced
fixed-gear riders.
Mounting Technique
Riding a fixed-gear bicycle requires proper
mounting technique. Many cyclists have bad mounting habits, such as
swinging the leg over on-the-fly, or starting up by shuffling their feet against
the pavement. These techniques work even worse on a fixed-gear bicycle than
they do on a freewheel machine.
Getting your
first pedal into the proper forward-and-up position is a bit trickier with a
fixed gear, since you can't just spin the pedals backward. The trick is to put
your foot on the pedal, then lift the rear end of the bicycle up so that you
can turn the pedals.
I used to lift
the bicycle up by the edge of the saddle, but I damaged a Brooks
Pro that way--the rivets that held the leather top to the
saddle frame pulled out from being stressed in this unanticipated direction!
My friend Osman
Isvan recently taught me a much better technique. The trick is to straddle the
bike, put one foot on a pedal, lock up the front brake and press forward on the
handlebars. The forward force on the bars will lift the rear wheel enough to
let you revolve the pedal to where you want it.
Dismount Technique
You can dismount in the normal manner from a fixed-gear
bicycle, but advanced fixed-gear riders might enjoy learning a special, very
cool-looking dismount that can only be done from a fixed gear.
Instead of
getting off to the side of the bicycle, the fixed-gear rider can go straight
off the back. This technique works best if you ride with clips and straps, but
if you are really proficient in disengaging from clipless pedals, try it at
your own risk.
As the bicycle
slows to near walking speed, disengage your left foot, then wait for the right
pedal to get to the bottom of its circle. As the right pedal starts to rise,
straighten your right leg and let the motion of the pedal lift you up. Let go
of the handlebars, let the saddle move forward between your legs, and put your
left foot on the ground. As the bike goes ahead, grab it by the saddle.
It takes a bit
of courage to try this, but it is actually very easy to do. It is also
extremely impressive to watch. When executed properly, it is very smooth, and
you can go from riding to walking in a single fluid motion, without ever coming
to a stop.
Braking
Some fixed-gear riders ride on the road without
brakes. This is a bad idea. I know, I've tried it. If you do it, and
have any sense of self-preservation at all, it will cause you to go much slower
than you otherwise could, every time you go through an intersection, or pass a
driveway. The need for constant extra vigilance takes a great deal of
the fun out of cycling.
You really
should have a front brake. A front brake, all by itself, will stop a bicycle as
fast as it is possible to stop. This is true because when you are applying the
front brake to the maximum, there is no weight on the rear wheel, so it has no
traction.
One of the
wonderful things about fixed-gear riding is that the direct feel you get for
rear-wheel traction teaches you exactly how hard you can apply the front brake
without quite lifting the rear wheel off of the ground.
This is a very
valuable lesson for any cyclist who likes to go fast; it could save your life.
There is really
no need for a rear brake on a fixed-gear bicycle. By applying back-pressure on
the pedals, you can supply all the braking that the rear wheel really needs. In
fact, it is fairly easy to lock up the rear wheel and make it skid, unless you are
running a rather high gear.
Some fixed-gear
fans make a point of not using their brake except in an emergency. I am not
sure that this is a good idea. Heavy-duty resisting is widely reputed to be bad
for your legs, and to be counterproductive for building up muscles and
coordination for forward pedaling. Google for "eccentric contraction" for more on
this topic. Eccentric contraction is reputed to cause
micro-tears to your muscle tissue, so it actually weakens your muscles, unlike
other forms of exercise.
This is a lot
like car drivers who use their transmission and clutch to slow down, even
though the car has a special set of parts made for the exact purpose of slowing
down. Brake shoes are cheaper to replace when they wear out than clutches are.
[Exercise
physiology is a relatively new science. Micro-tears in muscles are now known to
initiate strengthening. Common muscle-building exercises -- weightlifting,
pushups, sit-ups, Nautilus and Cybex machines, etc. use eccentric contraction
-- you lift the barbell, or your body, or pull on a lever, then lower it down.
But the number of repetitions in muscle-building exercises is much smaller
than in cycling, typically only 2 or 3 sets of 10 repetitions, rather than
thousands per hour of cycling. Hard resisting is probably a bad idea for the
same reason as low cadence. High stress repeated too many times leads to
overuse injury, and will deplete rather than build muscle. -- John Allen]
Skip Stops
Brakeless riders generally need to master a technique
called the "skip stop." This is a way that you can actually lock up
the rear wheel using your legs alone.
•
If you lock one leg at the bottom of the pedal stroke, as the pedal
rises it will start to lift your body upward.
•
When the cranks get horizontal, pull up on the front pedal, while
pushing down on the rear one.
•
Because your body will have acquired upward momentum, when you yank up
with the front foot this will temporarily partially unweight the rear wheel,
making it possible to initiate a skid.
Since sliding
friction is less than sticking friction, once the tire starts to skid, you will
generally be able to maintain the skid until you've stopped or at least slowed
down as much as you want to.
You have to
really want to do it, you can't be tentative! It's easier when you're going
faster.
The lower
your gear , the more effectively you can
"brake" by resisting with your legs.
Despite what
some folks will tell you, you can not stop nearly as short this way as you can
by using a good front brake.
See my article
on Braking and Turning for a detailed explanation of this.
Skid Patches
If you make a habit of doing "skip
stops" you will wear your rear tire out considerably faster
than if you use your front brake. This problem is exacerbated by certain gear
ratios, because you may tend to repeatedly skid on the same section of the
tire.
Riders who plan
to do a lot of skip stops should consider the ratio when selecting their
chainring and rear sprocket. The mathematics of this is actually fairly simple:
•
Simplify the gear ratio to the smallest equivalent whole number ratio.
•
The denominator of the resulting fraction is the number of skid patches
you will have on your rear tire.
Examples:
44/16 simplifies
to 11/4, so there would be 4 skid patches.
45/15 simplifies
to 3/1 so there would only be 1 skid patch.
42/15 simplifies
to 14/5, so there would be 5 skid patches.
43/15 can't
be further simplified, so there would be 15 skid patches.
This is based on
the assumption that you always skid with the same foot forward.
If you are an
ambidextrous skidder, and the simplified ratio has an even numerator or denominator,
your number of skid patches will be the same.
If you are an
ambidextrous skidder, and both the numerator and denominator
are odd, the number of possible skid patches will be doubled.
[Isn't this
brilliant! -- John Allen]
Fixed-gear dangers:
I should warn you that there are three dangers
related to fixed-gear bicycles that are not a problem with freewheel bicycles.
Used and maintained properly, fixed gear bicycles can be as safe as any, but
you should be aware of the three danger areas:
Pedal Strike
It is never a good thing to strike your pedal on the
ground while cornering tightly. On a freewheel bike, you can coast though the
corners with your pedals horizontal, thus avoiding any chance of striking. On a
fixed-gear machine, you don't have this option.
If you do bang a
pedal on a fixed gear, the pedal can lift the rear wheel off the road, and down
you will go. This has never happened to me, but it is something to bear in
mind.
How much of a
problem this is will depend on your bottom bracket height, crank length, and
the design of your pedals.
Most of my
fixed-gear bikes have 165 mm cranks,which give a bit more ground clearance than
the 170 mm's usually used on road bikes. I also make a point of using pedals
that don't stick out too far.
[Avoiding a
pedal strike is one reason not to follow Sheldon's
usual advice to keep the bicycle in line with your body when
cornering hard. If you lean your upper body toward the inside of the turn, the
bicycle will not steer as well, but on the other hand... -- John Allen]
Derailment and Wheel Lock
Throwing a chain on a freewheel bike is no big deal,
but it can be very dangerous on with a fixed gear. If the chain comes off of
the chainwheel, it can get hung up or even loop around the rear sprocket, and
can cause the wheel to lock up. If this happens while you are leaned over in a
turn, you will almost certainly crash.
This is
prevented by making sure that your chainline is straight, and that your chain
is adequately tight.
Catching Fingers, Trousers, Shoelaces
The other danger of fixed-gear bicycles is at its
greatest when the bike is in a repair stand. If you hand-pedal it and then
accidentally have a finger an article of clothing come into contact with the
chain or a sprocket, the momentum of the wheel will keep the drive train
rolling. You can lose a finger that way.
All above from Sheldon Brown.
Survey:
I circulated a survey around my friends who ride fixed and people on the Leeds Fixed Gear community's Facebook group to get some more information from orders themselves.
The questions were:
What to you are the advantages of a fixed gear bicycle?
Do you see any disadvantages of your fixed gear bicycle? If so, list them.
Did you build the bike yourself? Or did you buy a complete build?
Do you have any other bicycles? If so, what kind of bicycle do you ride more often and why?
How do you maintain your fixed gear bicycle and how often?
Have you ever competed in any fixed gear events? (Alley-cat races, bike polo, etc) If so, which ones?
After a few days I looked at the link and had 47 responses, which was fantastic news as it gave me enough data to work stuff out fairly.
Results:
1. What to you are the advantages of a fixed gear bicycle?
83 responses:
Low maintenance x 20 = 24%
Aesthetics x 19 = 23%
Fun x 9 = 11%
Fitness x 8 = 10%
Better connection x 6 = 7%
Better control x 6 = 7%
Reliable x 6 = 7%
Light x 4 = 5%
Fast x 3 = 4%
Customisable x 2 = 2%
2. Do you see any disadvantages of your fixed gear bicycle? If so, list them.
32% of people that took the survey said they saw no disadvantages but 68% did. The reasons people highlighted were:
41 responses:
Riding up steep hills x 14 = 36%
Riding down steep hills x 10 = 25%
Hard work/Effort x 4 = 10%
Dangerous to begin with x 3 = 7%
Can't stop easily x 3 = 7%
Being labelled as a hipster x 2 = 5%
Riding off-road is difficult x 2 = 5%
Cornering x 1 = 2%
Tires wear out easier x 1 = 2%
Bad for knees long term x 1 = 2%
3. Did you build the bike yourself? Or did you buy a complete build?
79% of people built the bike themselves, this really emphasises the quality people appreciate about being able to customise every part so that they have a unique bicycle that is perfect for them. 4 out of the 10 people that bought a complete bike have customised one or more parts to make it more personal.
4. Do you have any other bicycles? If so, what kind of bicycle do you ride more often and why?
Only 23% of people that responded to the survey only had a fixed gear. This highlights the amount of people that use a fixed gear as well as other bikes because of it's toning qualities which would benefit their cycling with other kinds of bicycle.
5. How do you maintain your fixed gear bicycle and how often?
The very basic stuff was listed that should of been, there were a few people who just don't maintain it at all and people that went a bit over the top but these were the general responses that tended to be weekly and monthly which is a good rate.
64 responses:
Clean x 12 = 19%
Lubricate chain x 20 = 31%
Pump tires x 11 = 17%
Tighten bolts x 21 = 33%
The survey has given me a really good set of real-life data from local riders which will prove useful in the writing of my publication.
The questions were:
What to you are the advantages of a fixed gear bicycle?
Do you see any disadvantages of your fixed gear bicycle? If so, list them.
Did you build the bike yourself? Or did you buy a complete build?
Do you have any other bicycles? If so, what kind of bicycle do you ride more often and why?
How do you maintain your fixed gear bicycle and how often?
Have you ever competed in any fixed gear events? (Alley-cat races, bike polo, etc) If so, which ones?
After a few days I looked at the link and had 47 responses, which was fantastic news as it gave me enough data to work stuff out fairly.
Results:
1. What to you are the advantages of a fixed gear bicycle?
83 responses:
Low maintenance x 20 = 24%
Aesthetics x 19 = 23%
Fun x 9 = 11%
Fitness x 8 = 10%
Better connection x 6 = 7%
Better control x 6 = 7%
Reliable x 6 = 7%
Light x 4 = 5%
Fast x 3 = 4%
Customisable x 2 = 2%
2. Do you see any disadvantages of your fixed gear bicycle? If so, list them.
32% of people that took the survey said they saw no disadvantages but 68% did. The reasons people highlighted were:
41 responses:
Riding up steep hills x 14 = 36%
Riding down steep hills x 10 = 25%
Hard work/Effort x 4 = 10%
Dangerous to begin with x 3 = 7%
Can't stop easily x 3 = 7%
Being labelled as a hipster x 2 = 5%
Riding off-road is difficult x 2 = 5%
Cornering x 1 = 2%
Tires wear out easier x 1 = 2%
Bad for knees long term x 1 = 2%
3. Did you build the bike yourself? Or did you buy a complete build?
79% of people built the bike themselves, this really emphasises the quality people appreciate about being able to customise every part so that they have a unique bicycle that is perfect for them. 4 out of the 10 people that bought a complete bike have customised one or more parts to make it more personal.
4. Do you have any other bicycles? If so, what kind of bicycle do you ride more often and why?
Only 23% of people that responded to the survey only had a fixed gear. This highlights the amount of people that use a fixed gear as well as other bikes because of it's toning qualities which would benefit their cycling with other kinds of bicycle.
5. How do you maintain your fixed gear bicycle and how often?
The very basic stuff was listed that should of been, there were a few people who just don't maintain it at all and people that went a bit over the top but these were the general responses that tended to be weekly and monthly which is a good rate.
64 responses:
Clean x 12 = 19%
Lubricate chain x 20 = 31%
Pump tires x 11 = 17%
Tighten bolts x 21 = 33%
The survey has given me a really good set of real-life data from local riders which will prove useful in the writing of my publication.
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