Complete set of two Norton lightweight Flat top pistons 750 to 1007cc. For JSM longer rods.

Highest quality Wiseco and JE brands. 1/3 lighter than stock, Kit includes rings, clips and .708″ DLC coated pins. A drop in kit compatable with all types of cylinders (more info).  No modifications necessary except that Hi C.R. motors with bores greater than 78.5mm will need larger diameter combustion chambers.

These must be combined with our longer rods (more info). Crank rebalancing is not required (balancing).  Most of our 750 and larger flat top pistons are coated but some are not. 79mm pistons are available on special order and need a 81mm head gasket.  Extra high compression 81mm racing pistons are special order. Slightly oversize 81 & 83mm  flat top pistons available on special order. Add TiN (titanium nitride) top ring coating to avoid vertical stripes on Nikasil coated alum cylinder walls (order ring coating here).