The MED/Omega forged 998 semi-slipper piston is perfect for high performance small-bore engines, the plus-0.020" particularly successful in the Mini Se7en race series, and plus-0.040" in Ministox and autograss. 

CNC machined from lightweight alloy forgings, the pistons have been designed to be as light as possible, at only 236 grams for the 020 including 5/8" pin and rings.

Tech spec

• 0.020" and 0.040" sizes for the 998cc engine
• Super lightweight semi-slipper design
• High strength for full competition usage 
• Flat-top crown
• Made in the UK exclusively for MED
• Lightweight 5/8" floating gudgeon pins