There are many chain manufacturers in the motorcycle industry but most (including some Japanese manufacturers) only offer a single type of sealing ring, using a "one type fits all approach" which is used on all their drive chains.

This can be inefficient depending on the intended use. .

Different types of seals for different applications maximises efficiency and performance

RK currently has FIVE types of sealed-ring chains. Each has its own features and benefits.

• O ring and RX Rings came first. Each a great product in their own right and broadly similar to the competition's current offerings.
• After several years of development, RK added the XW range of sealed chains to radically improve chain life and performance.
• As racing expanded into several different genres, RK also added the ultra thin U-Ring and UW-Ring sealed chains.
• Each seal type is specifically designed for a particular use to provide the ultimate in rotating efficiency with minimum friction, while providing a longer chain life.
• Do not compromise: Maximise the motorcycle's performance by fitting RK chain. Mark Marquez does and he does pretty well...

Affordable, long lasting performance RX sealed chain. The XSO series offers less torsional friction and increased performance.

XSO chains provide up to 7 times longer wearlife compared to standard chains.

Fitment Summary
Compatible with 103 models (yearly).

• Honda: VF750 C
• Kawasaki: ZZR 1400DBF, ZZR 1400FCF, ZZR 1400FDF, ZZR 1400FEF
• Suzuki: GSF 1250 A Bandit, GSF 1250 F S Bandit, GSX 1100FJ, GSX 1100FK, GSX 1300 B-King, GSX 1300 R Hayabusa WVCK, GSX 600FK1, GSX 600FK2, GSX 600FK3, GSX 600FK4, GSX 600FK5, GSX 600FK6, GSX 600FW, GSX 600FX, GSX 600FY, GSX 750FK, GSX 750FL, GSX 750FM, GSX 750FN, GSX 750FP, GSX 750FR, GSX 750FS, GSX 750FT, GSX 750FV, GSX 750FW, GSXR 1100L, GSXR 1100M, GSXR 1100N, GSXR 600WN, GSXR 600WP
• Yamaha: FZ6N 6001B3, FZ6R 600, FZ6S 600 Fazer, FZS 600 Fazer, GTS 1000A, YZF 1000R1, YZF 1000SP, YZF 750 R7 5FL