Bottom Bracket, Cranks And Pedals; Sitting Position; Tyres - Union Bikers First Anleitung

3. BOTTOM BRACKET, CRANKS AND PEDALS

The pedals are attached through the cranks to the bottom bracket. You do not need to
do anything with these, because everything has been manufactured as a "sealed unit".
Conveniently, this means they do not require any maintenance.
It is a good idea nevertheless to pay some attention to these components. According-
ly, the cranks must be secure and they must not show any play. If they do, they may feel
different and they are bound to make a noise. The parts may also become irreparably
damaged. However, the pedals can still have a bit of play, given the force that is exerted
through them. If the pedals themselves or the cranks are bent or damaged, following a fall
for instance, they must be replaced. Never unbend them!
The left-hand pedal is marked with an "L", the right-hand pedal with an "R". Attach the
right-hand pedal to the right-hand crank, and the left-hand pedal to the left-hand crank.
If you mount them the other way round, you will damage the screw thread. (3). Turn the
pedal-axle by hand in the corresponding screw hole in the crank (4). Secure the pedal
using the Allen key
(15 mm). Turn the right-hand pedal anti-clockwise to secure it.
Turn the left-hand pedal clockwise to secure it.
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4. SITTING POSITION

Sit on your Union to check whether the saddle is at the right height. We give a recommen-
dation, but ultimately you will need to decide for yourself whether you feel comfortable
with the saddle at the height we have suggested.
In brief, it comes down to the following: When you are seated, with one heel on the pedal,
you should just be able to reach the ground with the toes of the other foot. Your leg is
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then almost fully stretched, but not completely; your knee must not "lock". (See fig. 5). If
you cycle now with the ball of your foot resting on the pedal, your leg will be slightly bent.
If you prefer to be able to touch with ground with both feet, you can of course, but in
theory your saddle will then be too low.
You can adjust the height of the saddle (6) using bolt A. You can use a 13 mm Allen key or
a 5 mm hex socket screw. Remember to tighten the bolt again once you have adjusted the
saddle. Bolt B enables you to adjust the saddle fore and aft and set the saddle angle.
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5. TYRES

One of the most important considerations when it comes to being able to get enjoyment
out of cycling is the right tyre pressure. Having tyres that are too soft can have many nega-
tive effects: the tyre goes flat more quickly, it is more difficult to steer and brake efficiently
and the wear and tear on your tyre and bike are much higher. Therefore, there are many
reasons to check them regularly! Depending on the width of the tyre, the tyre pressure will
vary between 3 and 5 bar: the wider the tyre, the lower the tyre pressure.
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