YAMAHA YZ 125 250 YZ WR 250 426 450 F 1999-2026 AS3 FACTORY REAR SPROCKET 520 48T BLUE year-2020 2019-2020 KTM 350 SX-F

2019-2020 KTM 350 SX-F

2001-2016 Yamaha WR 250 F

2012-2015 KTM 250 SX

by increasing the overall volume of coolant passing through the water pump and running an over sized CNC machined high flow water pump impeller the AS3 Performance cooling kits lower the temperature of the coolant by 10-15 degrees leaving your engine running much cooler and increasing the overall performance of your bike

YAMAHA YZ 125 250 YZ WR 250 426 450 F 1999-2026 AS3 FACTORY REAR SPROCKET 520 48T BLUE year-2020 2019-2020 KTM 350 SX-FAS3 Performance Factory Series rear sprockets combine the strength of steel and the light weight of aluminium to give you the ultimate hard wearing rear sprocket. The outer ring is manufactured from hardened steel with a nickel coating and will outlast an aluminium sprocket by up to 3 times. The inner ring is constructed from aircraft grade 7075 T6 aluminium and is up to 50% lighter than a standard steel sprocket. Details Teeth: 48 Chain 520 Will Fit