RK 520/525/530XSO are designed for Middle displacement Motorcycle Models, lighten chain weight while securing adequate strength required, emphasizes light feeling of acceleration. RK XSO Series features RX-Ring that...
RK 520 EXW is designed to meet the Extreme requirement of rally races such as Dakar Rally, featuring RK?s only technology of XW-Ring and improved Thermal Fatigue Resistance.Application:250-750cc"
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