GasGas 125SM 04 Small end bearing

Nicke_pota

New member
I've been looking everywhere for a top end bearing that will fit my piston rod and piston pin, the problem is that in the manual, it says that the bearing should be 18x22x22 but when I tried that one, it didn't fit the pin. It might have another piston kit, but I'm not sure. Does anybody know about popular piston kits for the 04 125? And if so, what type of top end bearing will fit. BTW The piston that was already in it when it broke was a w?ssner piston if that helps.
 
the 2005 engine parts manual shows the bearing dimensions you mentioned which I agree is not correct. I believe the 125 pins is 15mm not 18mm like the 200, 250 and 300.

http://www.ebay.com/itm/Cage-a-aigu...ash=item51f216aa51:g:hSIAAOSwZQRYdIM1&vxp=mtr

http://www.wiseco.com/ProductDetail.aspx?ItemID=762M05400&ModelID=4093&ModelYear=2004&AppID=26795

Some years 125 had a flat top piston and some had a dome. The GG125 pistons interchange some YZ125 and CR125 pistons but you need to match what is in the engine (provided the correct piston is already there).
 
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