The MotoSport.com Vortex 420 CAT5 Sprocket And Chain Kit includes ONE Steel Countershaft (Front) Sprocket, ONE CAT5 Rear Sprocket, and your choice of ONE Premium Drive Chain, each with the following features:
Sprockets / Chainwheels Included:
For more than 15 years, U.S.-based Vortex Racing continues to manufacture, market and sell top-quality motorcycle racing components for Motocross, Supercross, Road Racing, Flat Track Racing and Minibikes. Owned and operated by motorcycle racers and enthusiasts, they focus on absolute quality. Each of their race components is made to the tightest tolerances with the best quality materials in the industry. Vortex tests on the track with direct feedback from top professional race teams worldwide. Vortex parts have been put to the test by some of the world's most respected champions and teams.
Vortex Front Steel Sprocket:
Made of the highest quality steel.
Drilled lightening holes on most applications.
Vortex CAT5 Rear Sprocket:
Utilizes the same Vortex design with a color anodizing that excludes sweeps, mud grooves and teeth.
The result is a bright flash of color (available colors vary by bike model) with bright silver highlights.
Note for installing O-ring chains: As O-ring chains are wider than standard roller chains, when fitting an O-ring chain to a motorcycle that was fitted with a non O-ring chain as original equipment, it is essential to check that there is proper clearance of the engine cases near the countershaft sprocket and any other places of close contact. Failure to do so could result in damage to the chain and motorcycle and could ultimately cause the chain to fail.
Note: Image is for reference ONLY, actual product will vary based on fitment and selection.
The SRO series chains offer a value-priced O-ring chain that will not compromise on quality or durability. Features include lightening holes, high-tech heat-treated steel alloys and all the exact same quality and craftsmanship that EK puts into their entire product line.
Quality O-ring chain at an affordable price.
Average tensile strength of 4,300 pounds.
Wear life index: 1,000.
Maximum engine size of 100cc street / 100cc off-road.