Description

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.Barcode: 4935531489634

Fits:
For full fitment details in a searchable list please check the FITMENTS tab.

• Derbi: Mulhacen 659
• Ducati: Monster 620ie DD, Monster 620ie MD, Monster 620S ie, Paso 906Sport
• Kawasaki: ER 500A1, ER 500A2, ER 500A3, ER 500A4, ER 500C1, ER 500C3, ER 500C4, ER 500C5, ER 500C6, ER 500C7, EX 250K8F, EX 250K9F, EX 250KAF, EX 250KBF, EX 250KCF, EX 250KDF, EX 250KEF, EX 300Ninja, EX 300Ninja Anniversary, EX 300Ninja KRT Edition, EX 300Ninja KRT Winter Test Edition, KLR 650A10, KLR 650A11, KLR 650A12, KLR 650A13, KLR 650A14, KLR 650A15, KLR 650A16, KLR 650A17, KLR 650A3, KLR 650A4, KLR 650A5, KLR 650A6, KLR 650A7, KLR 650B2, KLR 650B3, KLR 650B4, KLR 650C1, KLR 650C2, KLR 650C3, KLR 650C4, KLR 650C5, KLR 650C6, KLR 650C7, KLR 650C8, KLR 650C9, KLX 250S/T9F, KLX 250S/TAF, KLX 250S/TBF, KLX 250S/TCF, KLX 250S/TDF, KLX 250S/TEF, KLX 250S/TFF, KLX 250S/TGF, KLX 250S/THF, KLX 250S/TJF, KLX 250S/TKF, KR-1 250B1, KR-1 250B2, Z 300ER300, Z 400F, ZR 550B1, ZR 550B10, ZR 550B11, ZR 550B12, ZR 550B2, ZR 550B3, ZR 550B4, ZR 550B5, ZR 550B6, ZR 550B7, ZR 550B8, ZR 550B9, ZX4 400G
• KTM: Duke II 640
• Yamaha: RD 350F, RD 350F2, RD 350LC2, RD 350N, RD 350R, RZ 250R, RZ 250SE, RZ 350F1, RZ 350F2/N2, RZ 350R, XT 600Z/E