Operating instructions

Replacing brake pads
For dismounting the brake pads unscrew the adjust-
ing nut of the re-tensioning unit at the AX-Lightness
and engage brake calliper. Relieve the brake calliper,
by pressing together both brake arms with one hand
and unhooking the entire brake cable xing with the
other hand (a), as you usually do when dismounting
a wheel. If you have Campagnolo brake lever/shifter
units, you can slacken even more at the lever
(b). Re-
lease the brake pad bolts.
On the rear wheel brake pad replacement works with
the brake pad holder mounted; on the front wheel it
will be better to unscrew the entire brake pads.
Unscrew the entire brake pad holders with a T25 Torx-
wrench on the rear brake
(c). Do not forget to wipe
clean the brake and the brake pad holder on this oc-
casion.
Release and remove the bolts on the brake pad hold-
er outside with a 2 mm Allen key on the front and
rear wheel
(d). If you have other brake pad holders,
remove the pin by pulling it out upwards
(e). Remove
the brake pad and observe both the contour and the
direction of the arrow.
Slide a suciently thick brake pad of identical shape
that matches the rim type onto the pad holder (f).
For AX-Lightness and engage carbon rims we recom-
mend that you use BBB brake pads, models BS-03AC
for Shimano and SRAM brakes and BS-03CC for Cam-
pagnolo brakes or Ashima cork carbon brake pads.
If you have rims of other manufacturers, be sure to
observe their instructions. Secure the brake pad with
a new bolt treated with locking agent. If there are no
bolts added to the new brake pads, apply some liquid
locking agent on the already used bolt.
A washer indented on one side
(g) is inserted be-
tween brake pad holder and brake calliper. Due to
their ball-shaped form of these components, the
brake pad is ush with the braking surface. To adjust
the perfect angle, tighten the bolt including washer
only slightly and slide the brake pads in to the desired
position. The brake pad must not project beyond the
rim’s braking surface neither to the tyre nor to the
spokes
When mounting the brake pads to the brake, be sure
to check its alignment
(h). In direction of motion, the
holders must be closed in the front and open in the
rear, which presses the brake pad into the holder
rather than pulling it out! In addition, the bend must
t the run of the rim.
Pull the brake lever to hold the aligned brake pads
in their position. Use a torque wrench to tighten the
bolts to a torque value of 4 Nm.
If your brakes make squeaking noises, adjust the
brake pads in a way that the front part of the brake
pad hits the rim rst. In this case, tightening with the
brake lever being pulled doesn’t work. You must x
the brake pad by hand.
Hang the brake cable xing unit back in its mount
(a).
Retighten the release device that you have possibly
loosened before starting the replacement. Check
the gap between the brake pads and the rim sides
as well as the functioning of the brake. If necessary,
re-adjust the travel of the brake lever or the position
of the brake pad in case of dierent gaps to the rim,
as above described, on the AX-Lightness and engage
brake calliper.
28 29
Brakes
a
b
c
d h
g
f
e