PROX PISTON KIT CRF250R 04-09/CRF250X 04-17 13.5:1 (77.98mm)

OVERSIZE : B 
PRODUCT NAME : Piston Kit 
OEM NO : 13101-KRN-670; 
STYLE : High Compression 13.5:1 
SIZE : 77.98mm 
NOTE : Nikasil Piston Size 
MODEL : 4-Stroke 
MATERIAL : Aluminum 
FITMENT : Honda CRF250R / CRF250X 
BORE : 77.98mm 

FEATURES:

. Manufactured in Japan and designed as OEM replacements 
. Cast from a high-silicon content aluminum alloy that meets or exceeds OEM specifications, then CNC machined to extremely close tolerances; unless noted otherwise 
. Available in standard sizes along with fractional increases in standard sizes 
. Standard B, C and D sizes extend the life of expensive plated cylinders 
. Additional oversizes available in 0,010 mm increments 
. Pistons supplied in a kit package that includes rings, wrist pins and circlips 
. Pro-X rings and pistons are interchangeable and compatible with OEM pistons and rings NOTE: Standard size pistons do not require reboring or rehoning your cylinder Oversize pistons will require reboring and rehoning of your cylinder