[pete]

Just as a matter of intrest... power wise..
The Honda CRF150f... with a 175 bore kit,
cam , HD valve springs gives another 3.5hp..

the standard Honda sleeve is just bored for
the 175cc piston... So if these chinese motor
use the same thickness sleeve as Honda being a copy
it may well be just a bore job..
after all the crf150 is a 26cc increass & the Chinese bike
is less at 21cc..

http://www.mx-performance.com/id40.html






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