52mm Piston Kits for 100cc IAME and Similar Engines - 52mm piston kits for use with 100cc IAME and similar engines. Kit includes piston, TiN ring, wrist pin and clips. Compression height is 25.6mm (wrist pin C/L to controlling edge) The all new 52mm piston kits from Burris feature a 25.6mm compression height to fit many popular 100cc IAME and similar engines produced over the years. The kit comes in sizes 52.2mm, 52.3mm, 52.4mm & 52.5mm and is complete with a piston, wrist pin, circlips and a TiN coated 1mm ring. The 25.6mm compression height is the same as the current Reed Jet and the older K-88, K-78, K-80, K-55, K-11, TT-25, TT-75, TT-65, Sirio, TKM BT82, TKM RV100, PCR 100, DAP T80, etc…..This allows you to take many of the popular 100cc engines with the 48mm, 50mm and 50.8mm bores and either extend the cylinder life or simply overbore them to increase displacement. This is a perfect (and affordable) piston kit for vintage, UAS, Outlaw and recreational racers alike.