Namura NA-10003-4K Top End Repair Kit +1.00mm Oversize (85.97mm Piston)

Part Number: NA-10003-4K
Piston Size: 85.97 mm  (For 86.00mm Bore)
Oversize: +1.00 mm

Fits:
Honda XR400R 1996-2004
Honda TRX400EX Sportrax 1999-2014