LazyOx
Why try harder if you are #3
Made some progress on the front end.
There's a couple of things you need to do to fit a 2009-2012 R6 front end to a 1981 TR1/XV1000
The main issue is that the bottom end of the steering stem is 31mm thick and the Steering headset on the bike is 50mm wide.
Issue: there is no steering stem bearing sized d31 D50 in the known universe
Solution: Machine 1 mm off from the r6 for stem.
Then you can use the standard d30 D50 streering bearings on both upper and lower section.
Next problem is that the lower bearing cup is pretty deep so you will need a 3-4mm shimm in the bottom to avoid scraping.
If you put a thicker one it will make the top end side too short, it's already at the limit as the stem is slightly shorter than the original, but with some locktite I think it will be enough for the top nut to hold.
It's actually the two tightening nuts actually keeping it together so I'm not too worried about the top nut anyways.
There's a couple of things you need to do to fit a 2009-2012 R6 front end to a 1981 TR1/XV1000
The main issue is that the bottom end of the steering stem is 31mm thick and the Steering headset on the bike is 50mm wide.
Issue: there is no steering stem bearing sized d31 D50 in the known universe
Solution: Machine 1 mm off from the r6 for stem.
Then you can use the standard d30 D50 streering bearings on both upper and lower section.
Next problem is that the lower bearing cup is pretty deep so you will need a 3-4mm shimm in the bottom to avoid scraping.
If you put a thicker one it will make the top end side too short, it's already at the limit as the stem is slightly shorter than the original, but with some locktite I think it will be enough for the top nut to hold.
It's actually the two tightening nuts actually keeping it together so I'm not too worried about the top nut anyways.