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.
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Prices incl. VAT,