8
There are U-brakes of other designs which
have a bolt located next to one or both brake
pads for the adjustment of the initial spring
tension. Adjust these bolts carefully until the
distance between brake pad and rim is the
same on either side.
9. The brake system
9.6. Adjustment of the rear brake at the
rotor system
The rotor uncouples the brake cables from
the handlebar’s angle of turn. It allows for the
handlebar to be turned all the way round by
providing full braking power at the same time.
As a result, much more attention must be paid
to the adjustment of the rear wheel brake. By
the time the brake pads wear down, readjust
the brake by means of the adjusting devices
at the brake lever as well as at the bottom of
the frame tube, as above described.
There are two adjusting bolts with counter
nuts located directly above and two under-
neath the rotor. These adjusting devices allow
for a synchronization of the brake cables in
pairs, so that the rotor moves regularly and
does not get jammed, when pulling the lever.
The work at the rotor and brake cable
parts on the frame are best left to a
skilled mechanic. Maladjustement can lead
to a failure of the brakes!
Following the stationary test check the brakes
in a place clear of traffic
9.6.5 Synchronization
Some U-brakes are equipped with two bolts
for the adjustment of the initial spring tension
which are located on the axle on which the
brake arms are fixed to the frame. Keep the
outer sleeve nut with a fork spanner in its
original position and loosen the inner Allen
bolt.
Continue by carefully adjusting the outer
adjustment nut with the fork spanner until
the distance between brake pad and rim is
the same on either side. Retighten the inner
Allen bolt when both pads are in the accurate
position. Do not exceed the recommended
torque.
