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21Adventures in excess: Golf cart powered by Yamaha R1 engine

Click above to view video after the jump

29Yamaha introduces 2009 R1 with crossplane firing order

Click above for more shots of the 2009 Yamaha R1

5Lightning Motors and their lithium powered electric superbike

We have brought up the idea of saving money on gas by riding a motorcycle or scooter a few times now, and invariably, we get comments which state that motorcycles are worse for the environment than cars. Is that true? Not necessarily. Exhaust emissions are calculated in parts per million, and more parts per million of harmful particles in the exhaust is bad. This is often cited in defense of cars, as motorcycles often have worse ratings in parts per million that autos. But, what about the differ

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