Renthal Ultralight Works Chain & Sprocket Kit KTM 50cc '09-13 Purple Gear Lighter than conventional chain breakers Heavy duty casing for

Renthal Ultralight Works Chain & Sprocket Kit KTM 50cc '09 13 Purple Gear Lighter than conventional chain breakers Heavy duty casing for Lighter than conventional chain breakers Make Model Year GAS GAS EX350F 21 22 GAS GAS EX450F 21 22 GAS GAS MC350F 23 GAS GAS MC450F 21 23 HUSQVARNA FC350 19 22 HUSQVARNA FC450 19 22 HUSQVARNA FC450 ROCKSTAR EDITION 18 21 HUSQVARNA FX350 19 22 HUSQVARNA FX450 19 22 KTM 350 SX F 19 22 KTM 350 XC F 19 22 KTM 350 XC F KAILUB RUSSELL 21 KTM 450 SX F 19 22 KTM 450 SX F FACTORY EDITION 18 21 KTM 450 XC F 19 22 allowing faster engine spin up and shorter over run 7075 T6 aluminum alloy rear chainwheels are 66% lighter than steel