17
DRIVE TRAIN:
Your OSET features a traditional chain and sprockets. It is direct drive, with no
gears. With the motor mounted in the swingarm, suspension movement has no
effect on tension. However, the chain does need to be checked and adjusted
regularly, especially when the bike is new. The chain must be checked before
every ride and adjusted as necessary. There should be very little slack in the
chain. Adjustment is done as follows:
1. Ensure power is turned off.
2. Loosen axle nuts.
3. Turn adjustment nuts evenly on both sides. Very small movements can
make a big difference. Do not tighten so much there is no slack at all. It
should be ‘taught’, not ‘tight‘.
4. Lubricate the chain & check the sprocket bolts for tightness.
5. Reverse the above procedure, ensuring all bolts are tight.
6. Check the wheel for alignment (see section 20), and the chain for tension.
These two pictures show the correct tension. When pushing up on the
chain, it should only move 5-10mm.
Axle Nut (15mm) Chain tensioner nut (10mm).
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