Join Date: May 2019
Location: Near Bedford UK
It is only an M8 bolt holding on the sprocket. ( Vulcan has a much larger nut ? not a skinny bolt)
(the G650GS is an M10 and only 40nm + loctite)
These are the BM manual figures I have taken from manual , as someone asked I tried to help.
As for replacing the nuts up to you , if the bike is in warranty I might change them , in case there warranty claim would not want to give BM any excuse to reject a claim.
Buying a 2nd hand bike that has had everything over-tightened and leaking oil , not fun.
You can buy decent quality nuts and sumps washers from suppliers other than BMW but equal quality or better for less.
Last edited by Britmech; 05-09-2019 at 05:29 PM.