After years of experimenting, we now have available some excellent quality English made forged pistons. These were originally designed for our competition engines, but have now been refined to allow closer bore to piston clearance for road going Bullets. This piston gives a compression ratio of 8.5:1 so is ideally suited for every day use or for those of you who want that extra bit of performance coupled with a strong robust, reliable piston. These are available in 500cc standard and +20. Or why not bore your 500 barrel to 87mm and fit our 535cc piston? They come complete with rings, gudgeon pin and circlips.

Note: We would also suggest a higher grade of fuel is used when raising the compression of your engine.

**Spare/replacement rings are available**