Topic: what rear axle spacers do i need? ... (PICS ADDED)

[J.Webster Designs]

hey guys, i need some help figuring out what axle spacers i need for my bike. The rear is a 76 rim i believe with a 78 cush drive. do i need the spacer for the cush side to be 78 and the right side (brake side) to be 76? or do i just need 78 spacers?

[KingCustomCycles.com]

couldn't tell ya on that one but i do know the chain alignment is key, everything else may be compromised within reason.

[J.Webster Designs]

I forgot to mention that the 78 cush drive is because the bike has a 78 motor in it.


76 750F bike
78 750F motor
76 750F rear spoke rim
78 750 cush drive

[Alan F.]

If memory serves, the 78 K's spacers are 35mm and 25mm, not sure about the earlier bikes, I'll have to go measure the spacer from my K3.

[KB02]

What year wing arm are you using? The 76?

[J.Webster Designs]

its the 76 swing arm as far as i know... i can go out and put the rear wheel assembly on and see if i can get a ballpark measurement if that helps. but the motor isnt in the frame so i cant get the chain lined up to be accurate

[754]

Just throw the wheel on for now, then with engine in check alignment.

You do have the spacers from both wheels? probably will use the 76 sprocket side spacer if you have to spread the swingarm a lot to get it in, trim it.

alignment should be done on bike, not by keyboard.

[J.Webster Designs]

i dont have the spacers from either. the po had a comstar on it

[J.Webster Designs]

looks to just just under an inch without the bolt tightened down....











maybe something around like 27mm or so.

[Quartza]

you are forgetting about the brake caliper holder which is about 29mm wide.

[J.Webster Designs]

i am. thank you. hahahaha.

I amaze myself sometimes.