4.
Loosen, but do not remove, the left and right axle nuts using a 19 mm wrench to
allow axle movement.
5. Remove chain tension by alternately loosening the left and right chain adjustment nuts
using a 10 mm wrench. Remove nuts. Retain fastener hardware for installation.
6.
Remove the frame cross member by removing the two front and two rear bolts,
washers, and nuts using a 6 mm hex key. Grasp the cross member to prevent falling dur-
ing removal. Retain fastener hardware for installation.
7. Remove the flywheel using two service techs to carefully slide the flywheel rearward off
the frame.
NOTE:Make sure there is no brake pad resistance applied to the flywheel.
8. Remove the chain by carefully removing the chain off the front sprocket and then sliding
the chain over the rear crank arm and pedals.
Installation Instructions.
9. Place the chain over the pedals and rest it on the crank arm, do not put the chain onto
the sprocket teeth.
10. Place the other end of the chain onto the flywheel axle sprocket teeth.
11. Reinstall the flywheel using two service techs to carefully slide the flywheel into the
frame axle bracket. The chain adjustment bolts need to slide thru the adjustment nut
bracket holes.
TIP: You may find it easier to stand the bike frame on its front (resting on the front sta-
bilizer and handlebar) and then installing the flywheel into the axle mounting slots.
The weight of the flywheel will help to slide the flywheel into the mounting slots. Care-
fully hold the flywheel and return bike to the upright position.
12.
Reinstall the frame cross member using the two front and two rear bolts, and wash-
ers using a 6 mm hex key.
13.
Thread the left/right chain tension adjustment nuts onto the adjustment bolt but do
not tighten. Pull the flywheel forward until the chain tension stops movement. Then align
the flywheel angle so that the front of the flywheel rim is equally spaced and centered
within the frame forks. Then tighten the tensioner nuts until snug.
28
4 Replacement Procedures
Chain Drive and Flywheel Replacement
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