OEM Cylinder: 86 vs. 88 | Honda TRX250R Forums

piston8888.5mm Pistons - Dished M Specification, Our 100M Die Cast Pistons are made specially for us by Omega, one of Britain's leading competition piston manufacturers. They have the orinalInstructions: Enter a value in the un-shaded boxes below as they pertain to your engine. Note: For pistons BELOW the block @ TDC – value in box must be a POSITIVE number (.000) Note: