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Yamaha R1

Yamaha R1

Yamaha R1
The 2009 Yamaha R1 has been officially unveiled by Yamaha, and as we predicted, it has a Yamaha M1-like big bang firing order. The first time a big bang engine has been used on a production bike, Yamaha is calling it “Crossplane Technology” and it puts each connecting rod 90º from the next, meaning the cylinders fire at 270°- 180°- 90°- 180°. This spreads out the power pulses to the rear tire, allowing it to regain traction in between each pulse.