Renthal Ultralight Rear Sprockets KTM Husqvarna GasGas 125 790cc Tube Easily converted into a vest S2 Easily converted into a vest by simply unzipping the sleeves and placing them into the mesh internal pocket we developed our RS 12 to optimize the power on the new CRF250R to enable it to have the most bottom and mid power and provide maximum overrev to give the best possible power curve for Supercross and Motocross racing Make Model Year Husqvarna FC 250 14 21 Husqvarna FC 350 14 21 Husqvarna FC 450 14 21 Husqvarna FC 450 Rockstar Edition 18 19 Husqvarna FE 250 14 21 Husqvarna FE 350 14 21 Husqvarna FE 450 14 21 Husqvarna FE 501 14 21 Husqvarna FE 501s 14 21 Husqvarna FR 450 Rally 20 21 Husqvarna FS 450 18 21 Husqvarna FX 350 17 21 Husqvarna FX 450 17 21 Husqvarna TC 125 14 21 Husqvarna TC 250 14 21 Husqvarna TE 125 14 16 Husqvarna TE 150 17 19 Husqvarna TE 150i 20 21 Husqvarna TE 250 14 18 Husqvarna TE 250i 18 21 Husqvarna TE 300 14 18 Husqvarna TE 300i 18 21 Husqvarna TX 125 17 18 Husqvarna TX 300i 20 21 Husqvarna TXC 300 17 19 KTM 125 EXC 91 17 KTM 125 SX 94 21 KTM 125 XC 2021 KTM 125 XC W 17 19 KTM 144 SX 08 11 KTM 150 SX 09 21 KTM 150 XC 10 14 KTM 150 XC 17 19 KTM 150 XC W TPI 2021 KTM 200 EXC 98 16 KTM 200 SX 03 06 KTM 200 XC 98 16 KTM 200 XC W 98 16 KTM 250 EXC 91 17 KTM 250 EXC TPI 18 21 KTM 250 EXC F 02 11 Motocross and Enduro