Cobra 50 Rear Sprocket 420 CHAINChain Size 420 Models All Years All SIZES 35T 40T (36T HAS BEEN DISCONTINUED) HEADS UP: This is Cobra's newest sprocket design and if your bike is older than a 2018, you will need also purchase the new hardware kit to mount this sprocket on to your bike. Part# HKMU0002

Husqvarna TC65   ALL YEARS

Each set includes springs and comes in 5 vibrant color options: black

2 waterpump bearings

KTM                 SX50      2017+

BIKE                                                 YEAR

GasGas MC50       ALL YEARS

Cobra CX50         2016+

Optimum rust and corrosion protection for aluminum or magnesium liquid-cooled engines

HEADS UP: THIS WILL ALSO WORK ON OLDER MODELS-- BUT YOU WILL ALSO NEED 2X BCMU0501 AND BCMU0027

5 COLOR OPTIONS: black

HUSQVARNA TC85     2022-2024

KTM 50SX Factory Edition        2024