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Thor Guardian Youth MX Roost Protector
Both 420 and 428MXZ racing chains are the lightest and strongest in their class
This new lightweight feature allows the rider more ankle support and a comfortable fit thanks to the exclusive “wrap around” ankle pivot system that surrounds the ankle while at the same time flows with your natural movement to ensure a great fit
Anti-fog/anti-scratch hard coated
RK 520 MXU UW-Ring Chain 800R Thor Guardian Youth MX RoostRK GB 520 MXU U Ring Chain MXU is one of the lightest sealed ring motocross chains available on the market today. Made for the professional motocross racer, MXU series is the next generation of motocross racing chains featuring RK's ultra slim U Rings or UW Rings. MXU chains are designed to provide the most consistent power delivery with increased chain life. All components are heat treated using RK's exclusive HIT (Heat Induction Transfer) Process.