Wiseco +4mm Big Bore Piston Kit Honda XR250L 1991-1996 XR250R 1999-2004
Condition: New in factory box. Piston made in the USA by Wiseco. Rings made in Japan.
Wiseco Part Number: 4466M07700
+4.00mm forged big bore piston for 77mm big bore cylinder only.
Fits ONLY:
Honda XR250L 1991-1996
Honda XR250R 1999-2004
Included in Wiseco Piston Kits:
Piston, rings, pin, and circlips.
Technical Specs:
Compression Ratio (x:y): 10.5:1
Piston Diameter (mm): 76.95mm for 77mm bore cylinder
Size Over Standard: +4.00mm over stock