Thank you for your purchase. Please read thoroughly
this installation manual before proceeding with the
upgrade of your rear derailleur.
Warranty void if manual is not read and followed
Exploded view
A: Rear derailleur body
B: Tension spring
C: Body screw
D: Original pulley cage
A. 2mm Phillips screwdriver
B. Needle nose pliers
C. Cable tie
Required tools
For the installation of your new RD3 C35/C60 Oversized Pulley
Wheel System (henceforth referred as OSPW+) you will need
the following tools:
Insert the tension spring in the
derailleur body and make sure
that the internal hook is inside
the tension hole.
4
5
If required, use a needle nose plier to
remove the body screw. (Attention:
Before you fully remove the body
screw, please press the pulley cage
against the derailleur to avoid an
abrupt release of the spring tension.)
Carefully allow the pulley cage to
unwind, opening the spring
compartment.
3
Keep holding both pieces together
and reinstall the body screw. Tight
(2 N.m) it with a 2 mm Phillips
screwdriver.
8
To facilitate access to the body screw, extend the derailleur
body and fix it in extended position with cable ties. If you are
working with the derailleur installed on your bike, just shift to
the largest cog.
1
Align the external hook of the spring with the correct group of
tension holes of your OSPW+(see note below). To know
which group of tension holes is the correct one, when aligning
your OSPW+with the spring, it should form an angle of approx.
90owith the derailleur body and the lower pulley should be
pointing up and forward. Choose the proper hole according to
your tension preferences (see note below) and insert the spring
hook in it.
6
A D
B
C
Use a 2 mm Phillips screwdriver to
release the partly threaded body
screw.
2
Gently hold both parts together and rotate counterclockwise
the OSPW+until the pulley cage stop screw overpass the
bulge of the derailleur body. Then press firmly to fully
insert the OSPW+into the derailleur body.
7
