RK GB520XSO2-106 Gold RX-Ring Chain

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 954 models (yearly).

• Beta: Evo 125, Evo 125 Factory, Evo 200, Evo 200 Enduro, Evo 250 Factory, Evo 250 Trial, Evo 290 Trial, Evo 300, Evo 300 Enduro, Evo 300 Racing, Evo 300SS, Evo 300 Trial, Evo 300 Trial Factory, Rev 3 125, Rev 3 125 Enduro 4T, Rev 3 200 Trial, Rev 3 200 Trial Evo, Rev 3 250 Trials, Rev 3 270 Trials, Sincro 125 Trials, Sincro 200 Trials, Sincro 250 Trials, Sincro 300 Trials, Techno 200 Trial, Techno 250 Trial
• Derbi: Mulhacen 659
• Ducati: Monster 620 ie DD, Monster 620 ie MD, Monster 620 S ie, Paso 906 Sport
• GasGas: Trial 125, Trial 250, Trial 327, TXT 125 Contact, TXT 125Pro, TXT 200 Trials, TXT 250 Contact, TXT 250LE, TXT 250 ltd Edition, TXT 250Pro, TXT 250 Pro Racing, TXT 250 Racing, TXT 250 Replica Raga, TXT 250 Trials, TXT 280 Contact, TXT 280LE, TXT 280 ltd Edition, TXT 280Pro, TXT 280 Pro Racing, TXT 280 Racing, TXT 280 Replica Raga, TXT 280 Trials, TXT 300Pro, TXT 300 Pro Racing, TXT 300 Racing Formula Caliper, TXT 300 Replica Raga, TXT 300 Trials
• KTM: Duke II 640
• Montesa: Cota 310 250 4T 4RT, Cota 311 260, Cota 314 260R, Cota 315 250, Cota 4RT 260, Cota 4T 2504RT
• Scorpa: SC 125 Trial, SC 250 Trial, SC 290 Trial, SC 300 Trial, SCE 250 Factory, SCE 300 Factory, SCF 125 Trial, SCF 250 Trial, SCF 300 Trial, SCT 125 Trial, SCT 250 Trial, SCT 300 Trial, SR 125R, SR 280F, SY 175F, SY 250, SY 250FR, SY 250 Long Ride, SY 250 Racing, SY 250 Trials, Trials 250, TRide 250F, Twenty 125, Twenty 250, Twenty 250 Factory, Twenty 300, Twenty 300 Factory, TY 125F, TY 125 Trail
• 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 300 Ninja, EX 300 Ninja Anniversary, EX 300 Ninja KRT Edition, EX 300 Ninja 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 250 S T9F, KLX 250 S TAF, KLX 250 S TBF, KLX 250 S TCF, KLX 250 S TDF, KLX 250 S TEF, KLX 250 S TFF, KLX 250 S TGF, KLX 250 S THF, KLX 250 S TJF, KLX 250 S TKF, KR1 250B1, KR1 250B2, Z 300 ER300, 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
• Sherco: 125, 250, 290 250, 290 250 Racing, 290 250 Six Days, 320, 320 Six Days, EN 125, SC 125, SCR 125 Cross Country, SE 125 Enduro, SE 125 Factory, SEF 125, SEFR 125, SER 125 Racing, SES 125 Six Days, SM 125 Black Panther, ST 125 Trial, ST 125 Trial 1.25, ST 200 Trials, ST 250 Trial, ST 250 Trial 2.5, ST 280 Trial, ST 290 Trial 2.9, ST 300 Trial, ST 300 Trial AJP caliper, ST 305 Trial, ST 320 Trial 3.2, Supermoto 125 CityCorp, Trial 125125, Trial 200, Trial 250250, Trial 290290, XRide 125, XRide 290, XY 1254T
• TRS: One 125 Trial, One 250, One 250 Gold Trial, One 280 Gold Trial, One 300 Gold Trial, Raga Racing 125, Raga Racing 250, Raga Racing 280, Raga Racing 300, Xtrack 125, Xtrack 280, Xtrack 300
• Vertigo: Combat 250, Combat 250 Camo, Combat 250 Camo RR, Combat 300 Camo, Combat 300 Camo RR, Combat 300 Ice Hell
• Yamaha: RD 350F, RD 350F2, RD 350LC2, RD 350N, RD 350R, RZ 250R, RZ 250SE, RZ 350F1, RZ 350 F2 N2, RZ 350R, XT 600Z