XSO Chains

Discontinue and replaced by XRE (since 2024)   

Seal Chain for Middle CC Motorcycle

RK 520/525/530XSO are designed for Middle displacement Motorcycle Models, lighten chain weight while securing adequate strength required, emphasizes light feeling of acceleration

RK XSO Series features RX-Ring that have “X” shaped seals which provide a double barrier to seal the lubrication, providing 2 times longer wear life than standard O-Ring chains. 

Premium Replacement for 428 Genuine Chain

RK GB428XSO is the best replacement for 428 Non-Sealed OE Chain, featuring XW-Ring that drastically improve the chain life, together with Plating Gold on both Outer and Inner Plate for the best protection against rust.

RK 428XSO Series features RK’s only technology of XW-Ring, which has two lubrication pools and three contact lips, which is a triple barrier to further seal the lubrication but also prevent debris to enter the chain.

RK GB428XSO is compatible with Electrical Scooter GOGORO 2 series !



RK EUROPE / 428XSO
428XSO XW-RING CHAIN
  • Tensile Strength: 27.0kN
  • Application: 125cc / 400cc
  • Master Link Included: Clip/Rivet type
  • Weight: 1.2Kg/100L
RK EUROPE / 428xsoRK EUROPE / gb428xsoRK EUROPE / bl428xso

You may be intrested by:

428HSB seal428KRO seal428XSO seal
428HSB428KRO428XSO
Tensile Strength24,2 Kn24.0 Kn27.0 Kn
Application Cyl.50cc / 200cc125cc / 250cc125cc / 400cc
Master Link IncludedClip typeClip/Rivet typeClip/Rivet type
Weight/100L1,04 Kg1,17 Kg1,20 Kg
ApplicationOFF ROAD (50cc/150cc) / ON ROADSTREET RIDING - DAILY USESTREET RIDING - TOURING
Seal TypeNON-SEAL sealO-RING sealRX-RING seal
RK EUROPE / GB520XSO2
520XSO2 RX-RING CHAIN
  • Tensile Strength: 36.5kN
  • Application: 250cc / 800cc
  • Master Link Included: Clip/Rivet type
  • Weight: 1.56Kg/100L
RK EUROPE / 520xso2RK EUROPE / gb520xso2RK EUROPE / bl520xso2RK EUROPE / bb520xso2RK EUROPE / dd520xso2RK EUROPE / mm520xso2RK EUROPE / rr520xso2RK EUROPE / yy520xso2

You may be intrested by:

520SO seal520XSO seal
520SO520XSO
Tensile Strength30,5 Kn36.5 Kn
Application Cyl.250cc / 400cc250cc / 800cc
Master Link IncludedClip/Rivet typeClip/Rivet type
Weight/100L1,54 Kg1,56 Kg
ApplicationATV - STREET RIDING - DAILY USESTREET RIDING - TOURING
Seal TypeO-RING sealRX-RING seal
RK EUROPE / 525XSO
525XSO RX-RING CHAIN
  • Tensile Strength: 37.2kN
  • Application: 400cc / 900cc
  • Master Link Included: Rivet type
  • Weight: 1.87Kg/100L
RK EUROPE / 525xsoRK EUROPE / gb525xsoRK EUROPE / bl525xsoRK EUROPE / bb525xsoRK EUROPE / dd525xsoRK EUROPE / mm525xsoRK EUROPE / rr525xsoRK EUROPE / yy525xso

You may be intrested by:

525XSO seal525GXW seal525ZXW seal
525XSO525GXW525ZXW
Tensile Strength37,2 Kn39,5 Kn46,4 Kn
Application Cyl.400cc / 900cc600cc / 1300cc600cc / 1300cc
Master Link Included400cc / 900ccRivet typeRivet type
Weight/100L1,87 Kg1,87 Kg2,07 Kg
ApplicationSTREET RIDING - TOURINGSPORTS RIDING - STREETEXTREME SUPERBIKE
Seal TypeRX-RING sealXW-RING sealXW-RING seal
RK EUROPE / 530XSOZ1
530XSOZ1 RX-RING CHAIN
  • Tensile Strength: 40.0kN
  • Application: 400cc / 1000cc
  • Master Link Included: Rivet type
  • Weight: 1.98Kg/100L
RK EUROPE / 530xsoRK EUROPE / gb530xsoRK EUROPE / bb530xsoRK EUROPE / dd530xsoRK EUROPE / mm530xsoRK EUROPE / rr530xsoRK EUROPE / yy530xso

You may be intrested by:

530GXW seal530XSOZ1 seal530ZXW seal
530GXW530XSOZ1530ZXW
Tensile Strength44.0 Kn40.0 Kn49,8 Kn
Application Cyl.750cc / 1401cc400cc / 1000cc750cc / 1401cc
Master Link IncludedRivet typeRivet typeRivet type
Weight/100L2,11 Kg1,98 Kg2,22 Kg
ApplicationSPORTS RIDING - STREETSTREET RIDING - TOURINGEXTREME SUPERBIKE
Seal TypeXW-RING sealRX-RING sealXW-RING seal

Available in
428/520/525/530



Color Variation

(only for 5 Series)

 


RK EUROPE - MADE IN JAPAN CHAIN

Main point

  • For Street Riding & Touring
  • RX seal ring
  • Street Use minimum 15 000 km 
  • Affordable Performance 
  • Light weight, high strength and durability.
  • 2 times longer wearlife than O-Ring Chains