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 215 models (yearly).

• Honda: CB1100 SF1, CB1100 SF2, CB1100 SF3, CB1100 SFY, CBR1100 XX1, CBR1100 XX2, CBR1100 XX3, CBR1100 XX4, CBR1100 XX5, CBR1100 XX6, CBR1100 XX7, CBR1100 XX8, CBR1100 XXV, CBR1100 XXW, CBR1100 XXY, CBR600 FH, CBR600 FJ, CBR600 FK, CBR600 FL, VF1000 FG F2G, VF1000 RE, VF1000 RG, VF750 FC, VF750 FD, VF750 FE, VFR700 F, VFR750 FG, VFR750 FH, VFR750 FJ, VFR750 FK, VFR800 FA, VFR800 FA2, VFR800 FA3, VFR800 FA4, VFR800 FA5, VFR800 FA6, VFR800 FA7, VFR800 FA8, VFR800 FA9
• Kawasaki: GPX 750R, ZRX 1100C1, ZRX 1100C2, ZRX 1100C3, ZRX 1100C4, ZRX 1100C5, ZRX 1200A1, ZRX 1200A2, ZRX 1200A3, ZRX 1200A4, ZRX 1200A5, ZRX 1200A6, ZRX 1200B1, ZRX 1200B2, ZRX 1200B3, ZRX 1200B4, ZRX 1200B5, ZRX 1200B6, ZRX 1200C1, ZRX 1200C2, ZRX 1200C3, ZRX 1200C4, ZRX 1200C5, ZRX 1200C6, ZRX 1200C7, ZX10 1000B1, ZX10 1000B2, ZX10 1000B3, ZX9R 900C1, ZX9R 900C2, ZX9R 900E1, ZX9R 900E2, ZXR 750J1, ZXR 750J2, ZXR 750L1, ZXR 750L2, ZXR 750L3, ZZR 1100C1, ZZR 1100C2, ZZR 1100C3, ZZR 1100D1, ZZR 1100D2, ZZR 1100D3, ZZR 1100D4, ZZR 1100D5, ZZR 1100D6, ZZR 1100D7, ZZR 1100D8, ZZR 1100D9, ZZR 600D1, ZZR 600D2, ZZR 600D3
• Suzuki: GS 550EC, GS 550EN, GS 550ET, GS 550EV, GS 550EX, GS 550EZ, GSF 1200 Bandit, GSF 600 Bandit, GSX 750S, GSX 750S2, GSX 750S2C, GSX 750SE, GSXR 1000K1, GSXR 1000K2, GSXR 1000K3, GSXR 1000K4, GSXR 1000K5, GSXR 1000K6, GSXR 750G, GSXR 750H, RF 900RR, RF 900RS, RF 900RS2, RF 900RT, RF 900RV, RF 900RW, RF 900RX
• Triumph: Daytona 1000, Daytona 1200, Trophy 12004
• Yamaha: FJ 1100L, FJ 1100N, FJ 1200 1WH 3CX, FJ 12003CX, FZ 750N, FZ 750S, FZR 1000 EXUP, FZR 1000 Genesis, FZR 750R, FZS 600 Fazer, XJR 12004PU, XJR 1300 L SP, XJR 1300 M SP, XJR 1300 N SP, YZF 1000R