- Jun 30, 2012
Rohan, tell us about the races YOU have won. Better still tell us how many race rides you've had and how many fast bikes you've built.
Where did this info come from ?X-file said:You'll know when it's going well,because the clutch will begin to slip when you reach about 125 mph.You might reach 130 mph,with the clutch intermittently slipping (until it gets hot).
The clutch arrangement got better after about '79.I think you need to change the flywheel to fit the later stuff.
That sidecar "Rennsport' isn't the fake one, with the bolt on bevel drives that go no-where, is it ?acotrel said:I was just looking at the photo of your bike - I would be proud to own it especially if you are getting good rides on it. I believe that boxer BMWs are very under rated. The Rennsports were not too bad back in the early sixties, when they were unblown and Duke and Dale rode them. There is one genuine solo here in Australia owned by Jack Forest who rode for the works back then, and one sidecar which is being converted into a solo (sacrilege) .
It comes from experience with one fast,but almost standard (we used standard parts,slightly massaged),R100 S .You can get 10.5:1 just by leaving out the head gasket,but even with the gasket it went well.Rohan said:Where did this info come from ?
A quick search on airheads forum didn't find much on this...
BM clutches back then may be heavy, but unless they get oil on them , they could haul a truck.
They got lighter after 79, but stronger ??
The Butler and Smith racebikes didn't use anything so special in the clutch dept ?