What oil in the forks will produce a smooth ride ?

jseng1 · Oct 20, 2022

No got a bit mixed up with the BSA which are 5/16, so just go for 3/8" ID and 15/32 OD

kommando said:
Recommended tolerances:
- Housing - min/max: 0.4684/0.4691inch
- Shaft - min/max: 0.3731/0.3740inch

Bearing size when fitted:
- Bore - min/max: 0.3742/0.3769inch

I like the teflon coated bushing but the bored out alum cap would be about .012" thin on the flats - weak.

kommando · Oct 21, 2022

jseng1 said:
No got a bit mixed up with the BSA which are 5/16, so just go for 3/8" ID and 15/32 OD

I like the teflon coated bushing but the bored out alum cap would be about .012" thin on the flats - weak.

But on the RGM the flat does not extend downwards very far so the bottom of the hole is full thickness and the bush has a steel wall so is stronger than the alloy it replaces.

jseng1 · Oct 21, 2022

kommando said:
But on the RGM the flat does not extend downwards very far so the bottom of the hole is full thickness and the bush has a steel wall so is stronger than the alloy it replaces.

There's a way the strengthen that area. I'll make up a prototype and test if for a couple months.