• 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 are all pre-stressed and pre-stretched for better performance with fewer adjustments
• RK Standard Chain is 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
• Sealing Ring - None
• Max. Engine Size: 250cc;
• Tensile Strength: 6,600;
• Wear Life Index: 100 (wear life index should be used as a comparison for probable wear life under identical circumstances
• Economical street chain, made in Malaysia

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

Master link is included

NOTE: For replacement Clip connecting link order part no. 11-9979

(1) 110 Link black RKM525 chain

(1) Black clip type connecting link

Instructions