instaLLatiOnThe correct installation of your new Bontrager crankset is critical to
your safety, so this work should be performed only by an experienced
mechanic. If you are not sure of your ability to correctly install this
crankset, have the crankset installed by your Bontrager dealer.
Make sure your crankset is compatible
Before installing this crankset on any bike, check with your dealer
or the Bontrager technical service department to ensure that this
Bontrager crankset is compatible with your bicycle frame.
This crankset has the following dimensions, which cannot be modi-
fied:
• “English” bottom bracket, 1.27 x 24 tpi threading
• 68 mm bottom bracket shell (67.25 to 68.25 mm)
Italian-threaded cups that fit this crankset are available from Race Face.
• “English” pedals, 9/16 x 20 tpi threading
to install the bearing cups
1. Clean the bottom bracket threads.
2. Firmly snap the bottom bracket sleeve
(black plastic) into the right cup.
3. Start the threads of the right cup by hand
(Figure 3). The right cup has normal
threading.
3. Tighten the right cup to 430 lb•in (17-19
N•m) (Figure 4).
4. Start the threads of the left cup by hand
(Figure 5). The left cup has left-hand
threads.
5. Tighten the left cup to 430 lb•in (17-19
N•m) (Figure 6). Figure 3 Start the threads
of the right cup by hand
Figure Tighten the right
cup
Figure Start the threads
of the left cup by hand
Figure Tighten the left
cup
Installation