7
4.7.7 Changing tyres
To replace worn tyres, first release the air from the inner tube by opening the valve. Remove the
casing from the rim using standard tools available at bicycle shops, and then remove the inner
tube and inspect the rim band as well as the inner rim surface for damage.
Replace the inner tube and / or casing with new parts, and / or repair the tube by following the
instructions provided with the repair kit.
Insert the inner tube into the rim, starting with the valve. Pump it up slightly so that it assumes a
round shape and place it around the rim (Figure 07).
Then place the casing onto the rim and position it properly using standard tools. Ensure it is
properly seated on the rim (Figure 08).
Pump up the inner tube until it reaches the maximum operating pressure. This is indicated on
the side wall of the tyre. Finally, reattach the dust cap onto the valve.
07
08
4.7.8 Replacing the push rings – narrow / wide mounting position
First remove the tyres and inner tubes as described in Section 4.7.7. Loosen and remove the
screw connection between the push ring and the rim. If necessary, replace the worn push ring
with a new one. Reassemble the push ring to the rim. Attach it in the narrow or wide mounting
position in relation to the rim by using the inner or outer bore holes on the push ring brackets
(Figure 0).
For the remainder of the installation, follow the steps described in Section 4.7.7.
4.7.9 Replacing / retrofitting spoke protectors
Rear wheels with hollow rims or Infinity Ultralight rims can be equipped or retrofitted with spoke
protectors. They are mounted with snap fasteners (so-called attachment nipples). Remove the
rear wheels. If applicable, press out the attachment nipples of the worn spoke protector from
the inside, e.g. with the handle of a hammer (Figure 0).
Take the spoke protector or replace it with a new part. Position the spoke protector on the rim
so that it is centred and you can see a spoke beneath each of the six bore holes.
