February 13th, 2023.

RK’s NEW MXZ5 Off-Road Racing chains are made for the serious supercross and motocross racer have now arrived in the UK.

The all-new MXZ5 chains feature chromoly steel construction with seamless rollers and bushing. RK’s reinforced Chromized pins drastically improve the wear resistance more than two times compared to normal non-sealed chains while absorbing shock loads from extreme jumps. All components are heat treated using RK’s exclusive HIT (Heat Induction Transfer) process. 520MXZ5 has a maximum tensile strength rated at 8,600 lbs and is suitable for professional level 125cc to 500cc class racing. MXZ5 has a higher tensile strength and higher rigidity than its predecessor MXZ4 chain. 520MXZ5 will also come with a new less tacky grease which is less likely to attract dirt and debris.

MXZ5 is available with 120 links and a variety of colours from the most popular Gold & Gold, plus Orange, Blue and Red colours to match popular brands, with connecting links to match each colour.

Please note that MXZ5 and MXZ4 connecting links are NOT interchangeable! You must use MXZ5 connecting links on MXZ5 chains and MXZ4 connecting links on MXZ4 chains.

Bickers stock a full range of SuperSprox Off-Road sprockets in every colour to match the RK chain in solid aluminium and stealth at the wheel with light weight engine sprockets to finish the bike off. RK Chain and Supersprox are available to order now at

For more information please call our sales hotline 01394 604040, visit the Bickers website on, or contact your local Account Manager.
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