Renthal Chain & Ultralight Sprocket Kit Honda CRF150 230F '05 '17 Rear Sprocket Teeth:50 [Red] KAWASAKI (11 16) KXF 250 HolidayGiftGuide KAWASAKI (11 16) KXF 250 Year Model Make 16 18 FC250 HUSQVARNA 16 18 FC350 HUSQVARNA 16 18 FC450 HUSQVARNA 17 19 FE250 HUSQVARNA 17 19 FE350 HUSQVARNA 17 19 FE450 HUSQVARNA 17 19 FE501 HUSQVARNA 17 18 FX350 HUSQVARNA 17 18 FX450 HUSQVARNA 17 19 250 EXC F KTM 16 18 250 SX F KTM 15 17 250 SX F FACTORY EDITION KTM 16 18 250 XC F KTM 17 19 350 EXC F KTM 16 18 350 SX F KTM 16 18 350 XC F KTM 18 19 450 EXC F KTM 17 19 450 EXC F SIX DAYS KTM 16 18 450 SX F KTM 15 17 450 SX F FACTORY EDITION KTM 16 18 450 XC F KTM 17 19 500 EXC F KTM 644 pounds 500cc 3 Rear Ultralight Sprockets: Manufactured to extremely tight tolerances from a special material developed to withstand the stress of Supercross