TRS/GasGas/Sherco/Scorpa Trial Pistons S3 Racing Composition & treatment:• Top quality Aluminum-Silicon alloy• Casted or forged• Molybdenum disulfide protective layer. • Equipped with nitrided steel ringsFeatures:• Lightweight and resistant• Limits the vibrations• The engine will build up revs fasterThe kit includes:• 1 Piston• 2 Rings• 1 Pin• 2 Snap clips PISTON S3 TRIAL RACING FORGED 280 A Piston: A, Ø: 75,965 PISTON S3 TRIAL RACING FORGED 280 B Piston: B, Ø: 75,975 Suitable for: BETA See models EVO 270 2011 to 2018 EVO FACTORY 270 2011 to 2018 EVO RACING 270 2011 to 2018 REV 270 2006 to 2010 Suitable for: GASGAS See models TXT 280 2002 to current Suitable for: TRRS See models ONE 280 2016 to current ONE RR 280 2016 to current RAGA RACING 280 2016 to current Suitable for: SHERCO See models ST 290 2000 to 2020 SCORPA See models SC 280 2014 to 2022 SR 280 2014 to 2022