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Old 04-08-2014, 08:25 PM   #3
Gnarly Adventurer
Joined: Jan 2005
Location: Auckland New Zealand
Oddometer: 170
That weight difference would be worthwhile I think ! .

According to some info I dug up, the weight of a piston for a R100 airhead is
570 gr ( , and the one for an 1150 GS is 585 gr....(
Mind you I did not measure myself.
But that would be not too big a difference in stress if you are not constantly bouncing of the rev-limiter.....
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