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1. Slightly decrease the tightness of the rear wheel axle nut on one side of the wheel,
then on the other side of the wheel. If you fully decrease the tightness of the axle nut
on one side before you decrease the tightness of the other axle nut, you can cause the
bearings to come out of adjustment.
2. Slide the wheel rearward to tighten the chain. Put the wheel in the center of the
frame.
3. Complete the wheel installation.
Rear Derailleur
On bicycles with more than one cog on the rear wheel, the rear derailleur moves the
chain to change gears.
Each month, or after any adjustment, check the rear derailleur. Change gears to all the
gear combinations to make sure the chain smoothly lines up with each of the rear cogs.
Make sure the chain does not come off when you change gears.
To adjust the small-cog position
1. Move the chain to the smallest rear cog.
2. Decrease the tightness of the cable-clamp bolt (Figure 23) until the cable is free.
3. Move behind the bicycle to see that the smallest rear cog, the chain, and the two
derailleur pulleys are in alignment.
4. If they are not in alignment, turn the highgear limit-screw (usually identified with
an "H",) until they are in alignment.
5. While you pull on the cable, move the shiftlever to the small-cog position.
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