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 165 models (yearly).

• Ducati: Multistrada 1200 Enduro, Multistrada 1260 D air, Multistrada 1260 Enduro, Multistrada 1260GT, Multistrada 1260 Pikes Peak, Multistrada 1260S
• Honda: CB1300 A SA, CB1300 F3, CB1300 F4, CB900 F2, CB900 F3, CB900 F4, CB900 F5, CB900 F6, CB900 F7, CBR1000 FH, CBR1000 FJ, CBR1000 FK, CBR1000 FL, CBR1000 FM, CBR1000 FN, CBR1000 FP, CBR1000 FR, CBR1000 FS, CBR1000 FT, CBR1000 FV, CBR1000 FW, CBR1000 FX, CBR1000 RR4, CBR1000 RR5, CBR1000 RR6, CBR1000 RR7, CBX750 FE, CBX750 FF, CBX750 FG, CBX750 FH, VF1000 F2F, VF1000 F2G, VF1000 FE, VF1000 FF F2F, VF1000 RF
• Kawasaki: VN 800A1, VN 800 B Classic, VN 800 Drifter
• Suzuki: GSX 750 EE ESD ESE EFE, GSX 750 EE ESD ESE EFE Katana, GSX 750ET, GSX 750EX, GSX 750 LT LX ET EX EZ SZ, GSX 750S3, GSX 750S4, GSX 750SS, GSXR 1000K9, GSXR 1000L0, GSXR 1000L1, GSXR 1000L2, GSXR 1000L3, GSXR 1000L4, GSXR 1000L5, GSXR 1000L6, GSXR 1100G, GSXR 1100H, GSXR 1100J, GSXR 1100K, GSXR 1100WP, GSXR 1100WR
• Triumph: Adventurer 900, Thunderbird 900, Thunderbird 900 Sport, Tiger 1050, Tiger 1050 Explorer, Tiger 1050SE, Tiger 1050 Sport, Tiger 955i, Trident 750
• Yamaha: MT01 16705YU, YZF 1000R1