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About RK 520 XSO RX-Ring Chains
RK 520 XSO RX-Ring Chains
- Pro X-ring chain lasts five to eight times longer than standard chain
- Provides two more lubricant pools than conventional O-rings for longer life
- Lubricated with specially formulated, vacuum-injected U-grease; locked in by tough Nitrile Butadine rubber X rings
- Polished and shot-peened link plates
- High tensile strength ensures reliable performance
- Average tensile strength: 8,500lbs.
- Max engine CC: 750 Street/750 Dirt.
Warning: California Proposition 65