Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
I only rode a Black Bomber once, as a student in UMIST bike club in the 70's we'd go up the Cat & Fiddle for a club run, where we'd all swap bikes at the pub and go for test rides. God knows who was insured for what, noone asked. Up there was also the first time I rode a Commando, Suzuki RE5 rotary, 500 and 750 Kawasaki triples, a CB400 and who knows what else. As a teenager, once I had become interested in bikes and engineering, I borrowed various workshop and owners manuals from my local library, unusually one of the modern 'state of the art' bikes they had a manual for was the CB450 (which shows how long ago I was a teenager ). The thing that stuck in my mind was the torsion bar valve 'springs'. I get how a spring works, but I could never get my head round torsion bars - if you keep twisting and untwisting a piece of metal, why doesn't it get metal fatigue and break? Or a least stop being as 'springy'? Also, why? is it cheaper to make or does it give better control like desmos, ie no valve bounce at high revs?
Takes me back...stress strain curves
University of Sussex School of Engineering. 1976-79Sent from my iPhone using Tapatalk