Namura NA-10003-6K Top End Repair Kit +1.50mm Oversize (86.47mm Piston) TRX400EX

Part Number: NA-10003-6K
Piston Size: 86.47 mm  (For 86.50mm Bore)
Oversize: +1.50 mm

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