Cush drive "rubbers"......

ludwig · 2026-02-24T06:27:00-0700

I have a Commando rear wheel on my N15 (actually 2 wheels, so always one ready with a fresh tire..) and modified the hubs so that I can install the cush rubbers from the outside:

Makes wheel fitment much easier, and allows replacing or tightening up while on the road.
I don't like slack or excessive backlash in the drive train.
On a wet and twisty road it can even be dangerous.

ilikevelos · 2026-02-24T07:12:23-0700

concours said:
Re-stake it.

will give it a try. thanks.

Torontonian · 2026-02-24T12:47:15-0700

ilikevelos said:
will give it a try. thanks.

Several fixes attempted by Norton over the production runs .
Yes , try to restake the loose paddle . I would also put a bit of welding to seal the deal up , to all 3 . You may have to grind away any protruding weld and of course check all 3 for solidity and clearance before/on the install .

Andy Higham · 2026-02-25T08:23:04-0700

I've just realised I need to do a mod on the sprocket, I'm running 520 O ring chain

velo54 · 2026-02-25T12:55:39-0700

Andy, i turned mine down on a lathe. Teeth are pretty hard, but slow with a carbide tool was ok. Graham

Andy Higham · 2026-02-25T13:02:51-0700

velo54 said:
Andy, i turned mine down on a lathe. Teeth are pretty hard, but slow with a carbide tool was ok. Graham

I have a quite large Harrison M300 lathe, It will eat it

robs ss · 2026-02-25T17:42:30-0700

velo54 said:
Andy, i turned mine down on a lathe. Teeth are pretty hard, but slow with a carbide tool was ok. Graham

Which side did you remove metal from - and what was your logic?
Cheers

velo54 · 2026-02-25T18:18:28-0700

Rob, pretty sure i removed it from the outside, LH side, because it was easier to mount in the chuck. Thought about removing metal from both sides but came to the conclusion it would not matter. Sprockets are far enough apart not to worry about it. Done about 4000 miles with the new hub and brake. No more problems. Graham

robs ss · 2026-02-25T18:35:14-0700

velo54 said:
Rob, pretty sure i removed it from the outside, LH side, because it was easier to mount in the chuck. Thought about removing metal from both sides but came to the conclusion it would not matter. Sprockets are far enough apart not to worry about it. Done about 4000 miles with the new hub and brake. No more problems. Graham

Cheers Graham!
You weren't worried about going through the case hardening by taking it all from one side?

velo54 · 2026-02-25T18:41:20-0700

Rob, the teeth are quite hard. I don't know how it is heat treated. Maybe induction hardened or flame hardened. Probably not case hardened. Regardless, the chain should not cause any wear on the side of the sprocket. Graham

Cush drive "rubbers"......

Similar threads