X-Nico

unusual facts about Yamaha YZF-R1


Crossplane

The 2009 Yamaha YZF-R1 motorcycle uses the crossplane crankshaft and, in the absence of the 90° bank angle of the V8, must use a separate balance shaft geared off the crankshaft to eliminate the inherent rocking vibration (primary rocking couples) found in this type of crank.



see also