RK Racing Chain

4122-998S

RK Racing Chain 4122-998S Steel Rear Sprocket and 520EXW Chain Steel Race Kit

EAN: 0953040121511

UPC: 953040121511

Sprockets

Fits: Yamaha YZ250 99-13
Steel race kit contains: 14 tooth chromoly front sprocket; 51 tooth steel rear sprocket; and RK 520EXW-116 link chain
Sealed XW-ring chain features heat treated high carbon alloy steel components with seamless rollers and shouldered bushings providing the user with a 50 percent longer wear life than basic O-ring chains
XW-ring uses an advanced nitrile butadiene composite and features three contact lips and two convex outer stabilizers; this means three lubrication pools to protect against high speed abrasion, extreme heat build up, torsional flex and loss of lubricant
XW-ring chains are the best high-speed, extreme heat performance chains available today and include a clip type master link

Fits: Yamaha YZ250 99-13. Steel race kit contains: 14 tooth chromoly front sprocket; 51 tooth steel rear sprocket; and RK 520EXW-116 link chain. Sealed XW-ring chain features heat treated high carbon alloy steel components with seamless rollers and shouldered bushings providing the user with a 50 percent longer wear life than basic O-ring chains. XW-ring uses an advanced nitrile butadiene composite and features three contact lips and two convex outer stabilizers; this means three lubrication pools to protect against high speed abrasion, extreme heat build up, torsional flex and loss of lubricant. XW-ring chains are the best high-speed, extreme heat performance chains available today and include a clip type master link.

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