RK racing chains have been the overwhelming choice of World Championship Teams for the past two decades! 

• They have benefited from their long-term OEM relationships with the major Japanese motorcycle manufacturers; RK has supplied original chains and chains for racing
• All high-quality RK chains are made in Japan except the standard RKM series, which are from Malaysia
• All RK chains feature quad-staked pin riveting, solid rollers and solid bushings, except the RKM and standard series, which have two-point riveting and curled bushings
• They're all pre-stressed and pre-stretched for better performance with fewer adjustments

HEAVY DUTY CHAIN (M)
•So good they outperform most of the competitions heavy-duty chains
•Economical RKM series are made in Malaysia with Japanese materials and meet all RKs specifications
•Max. Engine Size: 110cc Street/80cc Dirt;
•Tensile Strength: 4,100 lbs;
Wear Life Index: 100 (Wear life Index should be used as a comparison for probable wear life under identical circumstances. Think of it as a percent, with standard chains being 100)

NOTE:

If your motorcycle came factory-equipped with an O-Ring, it must be replaced with an O-Ring chain.

Includes a Clip Type Master Link

Replacement connecting link:
Clip-Type: part no. 11-1092

(1) 120 Link 420H heavy duty chain, natural color W/(1) clip type connecting link

Instructions