Reply To: Drive Chain Adjustment – GT250 EFi
JT XRING isn’t too bad , so you should be okay , if in doubt you can always try any RK XRing / EK XRing as my personal preference , there is also other japanese brands like Tsubaki, Kobura. Whatever you do, avoid the likes of TVR, Choho, and them unfamilar chinese brands , they always snap!
For wheel alignment, go behind your rear tyre , kneel down … and so do it like this
- Bike needs to be on paddock stands.
- Make sure your rear axle is a little loose so the wheel moves.
- Loosen chain tensioners a little.
- Pull the rear wheel back as far as you can safely.
- Look inside the “INNER walls” OF swingarm (facing the tyre sidewalls)
- You will see each side a “drain hole” for the swingarm towards the front of the bike.
- You want your tyre to be sort of inbetween them
- ie….
[swingarm leg left] [drain hole] [tyre here] [drain hole] [swingarm leg right]
sometimes a straight long strong ruler helps check the chain is straight also.
- Tension of the chain while it is on paddock stands should be about 15mm when you push the bottom chain up^ (rough guess)
- Check wheel again and chain are straight, then tighten the rear wheel axle to max of 60 ft lbs torque (make sure to use a torque wrench)
If you brake hard the brake disc and caliper apply force on the right side of wheel, that might bring the wheel forward
if you take off hard , the chain wants to pull the wheel on the left side , and vise versa. - I think you get the idea of where i am going with all this
Did my reply help so far ?