MCN - Motorcycle News Posted October 7, 2009 Report Share Posted October 7, 2009 This is like no in-line-four cylinder sportsbike ever produced. It’s simply sensational. The Yamaha R1’s ultra-short-stroke engine has a cross-plane crankshaft, with its crank pins set at 90° and has irregular firing intervals, which is technology lifted directly from Valentino...More... Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.