RK CHAIN 420MXU2 - 136 LINK - GOLD (U-RING) Category_Caliper Rebuild Kits SEALED 'RX' RING CHAIN

SEALED 'RX' RING CHAIN

This kit includes beefy powder-coated steel brackets with and M8 mounting hole and all necessary mounting hardware

A right and left indicator for rear use

and daily streetwear use

Radiator Shrouds - Yellow/Black

RK CHAIN 420MXU2 - 136 LINK - GOLD (U-RING) Category_Caliper Rebuild Kits SEALED 'RX' RING CHAINSEALED 'UW' RING CHAIN RK MX U ring racing chain features RK's new ultra slim UW rings and is designed to deliver consistent power delivery as well as increased chain life. It is also one of the lightest sealed ring motocross race chains available on the market, and all components are heat treated using RK's exclusive HIT (Heat Induction Transfer) process. Please note that MXZ4 and MXZ5 connecting links are NOT interchangeable! You must use MXZ4