Hi all.

Forgot to measure when I left home...
Anyone knows what is the size of the bolt that hold the sprocket adapter for a 2002 / 03 R1?

Thanks,
Joao

36mm rings a bell, not 100% though.

36mm is the size of socket you'll need I think, as to the actual bolt thread I don't know either

Could it be 22mm?

Joao

on my Honda VFR 800 its just

Bolt M10, with 1,25mm (pitch) thread

the longitud was small 35mm

sow socket 17 over here..

Tks

Thats not an R1 though TKS

Im not much use either Im afraid Joao, it sounds roughly right but I cant get at mine to measure it

Weird!

I have just been out and fitted my prop adaptor and discovered i need a nut for mine.

Is it a Yamaha dealer job or does anyone know the what thread nut i need for a 1998/99 R1 output shaft?

Yep it is a nut, the thread is what we're trying to work out, mis-worded above saying bolt

Get the nut and tab washer from a Yamaha dealer - they cost peanuts!

But don't try to give them peanuts in exchange as they aren't UK currency. Unless they're covered in chocolate of course....

The nut and tab washer is a few pounds from the local Yamaha dealer. Best just to get it there.