Boxerworks.com

Yeah, the 77 "S" bikes were the one's the the highest compression 9.5:1, big valve heads and 40mm Bings. After 77 they started to detune (reduce compression) to meet US EPA requirements I think..

I have one (and its for sale but not advertised yet) and just love the the pure "grunt" this bike delivers, thanks to the hi compression and hemi- heads ...think they ran squish band pistons ...just an absolute blast to run.

I had a 77 RS as well (before I sold it)...it has the same motor as the S model but I think were 40mm exhaust vs 38mm on the S...I rode both these bikes back to back and the S was definetly quicker ...its a much lighter bike then the RS due to the RS fairing weight....both were lovely machines but the S felt more nimble and quick due in part to the fact it was one of the lightest airheads of its time...

You wont go wrong with a 77 S....

Here's my S ...all original 48,000 kms (about 30,000 miles 'merican) and I have all documentation that goes with it back to the original Bill of Sale in 1977! The original owner, who I knew,was fanatical about maintainece and record keeping. The second owner bought it at 41,000 kms in 1993 and only put on 3,000 kms...
I bought it from him 2 years ago and put 2000 kms on her after a complete retrofit...all original, including the sun faded front fender and rear seat cowl..ha ha...that red paint job was famous for the sun fade..



And the glorious 77 RS ...gone to a good fellow in western Canada (he flew in and rode here back to BC..about 4000 kms)
I put a set of Krausers on for his ride and he sent them back...great guy.


PM me if want to know more...

I am actually a fan of the post 81's. Brembo brakes, light flywheel, nickasil bores and lighter starter motor.

I have a 1982 R100. So it is down on power compared to earlier machines on paper - but it is also down on weight and better braked.

I have put wire wheels on mine, it has 90,000 miles on it and is hand painted........And is not for sale.

I sold a R100S to a close friend in 78, or 79 and it is the smoke red. He has only less than 10 k miles on it now. It has always been garaged and is perfect. I think that he has always kept it registered and running well, but not sure. Now he rides his motorscooter more.

No, its not for sale as he doesn't need the money or the room. I get first chance. That is the one that you want.