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Back in July of Last year Yamaha showed off a new crossplane parallel twin that mimics the crossplane principles of the R1's engine. They revealed at the time that they would be developing an entire lineup of engines around crossplane cranks.

Just imagine the benefits...

On a twin, the same idea surely relates to a 270-degree crankshaft, imitating the power delivery of a 90-degree V-twin. That’s the arrangement Yamaha already uses on the TDM900 and the Super Tenere parallel twins, so this new design isn’t likely to be as ground-breaking.
A couple of the Indonesian blogs have been speculating about this lately, so I'm just wondering if this might in fact have some merit to it...




 

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No confirmation of f R25 is crossplane or not...


but...

R25 is making

36 ps @ 12000 RPM
22.1 Nm (16.3 ft-lb) @ 10000 RPM
11.6:1 compression

 
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