Wossner Pistons - full kit including rings, gudgeon pin and circlips.

Fits all models of TTR250 including the Raid.

I use these pistons on all my rebores and am very pleased with the results. More info here.

The pistons have the same compression ratio as the standard piston - 10.2:1

Replacement rings for Wossner pistons are available from the shop.

TT250R head and base gasket set - fits all models and years

Single Yamaha replacements are very expensive. We have sourced these as a pair for you.