by TangramEX | May 20, 2011 | CRF250 2010-2017 R
We bore and plate your OEM cylinder to 79mm.
by TangramEX | May 20, 2010 | CRF250 2010-2017 R
81mm bore modification to your OEM cylinder.
by Trina | Sep 11, 2009 | CRF250 2010-2017 R
We modify your OEM cylinder to 80mm and stroke the crank to 58.9
by Trina | Apr 9, 2008 | CRF250 2010-2017 R
This is the one you want. Our favorite.
by TangramEX | May 20, 2007 | CRF250 2010-2017 R
We mod your OEM cylinder to 81mm and stroke and balance your OEM crankshaft.