Please call to order 608-842-0680
Availability: Built to order
$1150
CRF278R Stealth Big Bore kit fits 2010-2017 CRF250R
Bore: 81 Stroke: 53.8 Actual Displacement: 277.23cc
Parts and Modifications Included:
We modify your OEM cylinder with an “Ice Cube” style forged aluminum liner plated with nickel ceramic bore coating.
CP piston 13.2:1
Cometic head, and base gaskets.
Copper combustion sealing ring.
This is as big of a bore you want to do on a 2010-2017 CRF250R without significant head work.
