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RK CHAIN

RK’s #520EXW is a multi-functional off-road chain as it can be used for ATV, Enduro and Rally Motorcycle Racing

Was designed for professional MotoGP racing. Featuring UW-Ring seals, XRU is a lightweight professional racing chain.

The UW seals reduce friction while maintaining optimal horsepower delivery from the start of the race to the end.

Developed in collaboration with MotoGP and World Superbike teams to produce the ultimate racing chain.

XRU features UW-seals which are more than 50% thinner than O-ring seals. XRU is rated up to 1000cc, max 265HP and weighs 3.44 lbs/100 links.

RK Chain #420MRU is a Black Scale Chain featuring black inner and outer sideplates and gold pins and rollers.

MRU is a lightweight, low friction, sealed U-Ring chain perfect for Honda Grom and Monkey and other small displacement motorcycles.

By utilizing RK’s Ultra-thin U-Ring seals, 420MRU is the same width of a non-sealed chain.

Life expectancy is 4 times longer when compared to a non-sealed 420 chain.

MRU chains have a maximum tensile strength of 4,540 lbs, weighs a mere 1.74 lbs per 100 links and is rated up to 150cc street/off-road and max 25 HP.