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 151 models (yearly).

• BMW: S 1000RR, S 1000 RR Sport
• Honda: CB600 F7, CB600 F8, CB600 F9, CB600 FA, CB600 FB, CB600 FC, CB650 FAE, CB650 FAF, CB650 FAG, CB650 FAH, CB650 FAJ, CB650 R, CBR600 F, CBR650 FAE, CBR650 FAF, CBR650 FAG, CBR650 FAH, CBR650 FAJ, XL600 V, XL650 V1, XL650 V2, XL650 V3, XL650 V4, XL650 V5, XL650 V6, XL650 V7, XL650 VY, XL700 V7, XL700 V8, XL700 V9, XL700 VA, XL700 VB, XL700 VC, XL700 VD
• KTM: Adventure 950, Adventure 950LC8, Adventure 990S R, SM 990 Supermoto, Supermoto 950R
• Suzuki: DL 650 V-Strom, DL 650 V-Strom XT, GSF 650 Bandit, GSX 650 F FA
• Triumph: Daytona 675, Daytona 675R, Street Triple 675, Street Triple 675R
• Yamaha: MT09 900SP, MT09 900 Tracer GT, MT09A 900 Tracer ABS, TDM 900ABS, TDM 900AZ, TDM 900P, TDM 900R, TDM 900S, TDM 900T, TDM 900V, TDM 900W, TDM 900X, TDM 900Y, TDM 900Z