RK CHAIN 520XSO2-102 - PRO X-RING 3018542RK

RK 520XSO2 Chain
CHAIN RK 520XSO2 XSO X 102 3018542RK CHAIN RK 520XSO2 XSO x 102 RK520XSO2 XSO x 102 RK520x SO x 102 520XSO2 XSOx102 520x102 3018542 3018542CZ 520XSO2 XSOX102 RK520XSO2 XSO102 520XSO2 XSO102 RK520XSO2 XSOX102 3018542 DID520VX2 520vx102x102 520VX2 520vx2102 520vx2x102 did520vx2102 did520vx2x102 did CHAIN RK 520XSO2 XSO X 102 Heavy Duty X Ring SKU3018542RK CHAIN RK 520XSO2 102 PRO X RING CHAIN RK 520XSO2 102 PRO X RING RK 520XSO2 Chain Black 520 Yes XSO2 8318 37000 H Duty X Ring Drive Chain 520 Chain 4935531489245 520x102 520 102 520102
  • £59.09 (Exc. VAT)
+ In Stock Now | Usually dispatched within 24 hours
  •   (More Info)
  •   (More Info)
Click & Collect Only Select your local dealer on checkout
Find A Stockist Find your nearest dealer (not limited to Click & Collect)
Trade Customer? Request an account application form

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: 4935531489245

  • Grade:
    H Duty X Ring
  • Sealed:
  • Tensile Strength (Lbs):
  • Tensile Strength (N):
  • Pitch:
  • Colour:
  • Length:
  • Type:

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

  • Honda: VT 250J, VT 250K, XL 250RC, XL 250RD, XL 250RE
  • Kawasaki: BJ 250Estrella, GPX 400R, GPZ 400R
  • Yamaha: XT 4004 valve, XT 600K, YD 250Scrambler

Product FAQs
Which RK chain is suitable for my motorcycle, scooter or ATV?

Using the vehicle selector you can select which RK chains are compatible with your motorcycle, scooter or ATV.
We also list all compatible vehicles on the FITMENTS tab of each product page.

For a brief overview of the grades of chain, their specification and applications, you can download the RK guide here or from the downloads page

RK Chain Maintenance Instruction Video

Watch the RK instruction video on how to best maintain your chain: www.youtube.com/watch?v=PIPnLeiTXyk


Click & Collect Only

Select a collection point from our network of available dealers. You will be notified by the chosen dealer once your order is ready to collect, estimated time is 2-3 days (depending on national holidays and dealer opening hours).

  • Free for orders over £100
  • £11.95 fee for orders below £100



Standard Delivery

Orders will be despatched as follows: To business addresses only; £9.95 (Exc VAT) delivery charge (subject to change depending on account level); Free delivery with net order values of £100 and over (Exc VAT) to the UK Mainland; Orders to N. Ireland/Eire/Isle of Man/Scilly Isles by arrangement; other destinations phone for details; Typical delivery times of 1-2 working days.

Where possible, the Company will endeavour to meet special delivery requirements subject to any additional cost being borne by the Purchaser

Unfortunately, we do not delivery to addresses outside of mainland UK without prior agreement. Without prior agreement you may place an order for Products from outside the UK, but this order must be for delivery to an address in mainland UK unless arranged otherwise prior to your order.

Pallet Charges

Larger items may incur additional carriage charges, including but not limited to 4x4 and SUV tyres.


Read our full delivery policy here

Make Model Engine/Variant Year Notes
Yamaha XT 600 K 1991 OE Grade Chain
Yamaha XT 600 K 1994 OE Grade Chain
Yamaha XT 600 K 1992 OE Grade Chain
Yamaha XT 600 K 1993 OE Grade Chain
Kawasaki GPZ 400 R 1985 OE Grade Chain
Kawasaki GPZ 400 R 1986 OE Grade Chain
Kawasaki GPZ 400 R 1987 OE Grade Chain
Kawasaki GPZ 400 R 1988 OE Grade Chain
Kawasaki GPZ 400 R 1989 OE Grade Chain
Kawasaki GPX 400 R 1987 OE Grade Chain
Kawasaki BJ 250 Estrella 1998 Upgraded Chain
Kawasaki BJ 250 Estrella 1999 Upgraded Chain
Kawasaki BJ 250 Estrella 2000 Upgraded Chain
Honda VT 250 J 1988 OE Grade Chain
Honda VT 250 K 1989 OE Grade Chain
Kawasaki BJ 250 Estrella 1995 Upgraded Chain
Kawasaki BJ 250 Estrella 1996 Upgraded Chain
Kawasaki BJ 250 Estrella 1997 Upgraded Chain
Yamaha XT 400 4 valve 1983 OE Grade Chain
Yamaha XT 400 4 valve 1984 OE Grade Chain
Honda XL 250 RD 1983 OE Grade Chain
Honda XL 250 RC 1982 Upgraded Chain
Honda XL 250 RE 1984 OE Grade Chain
Yamaha YD 250 Scrambler - 3NU1/2 1983 OE Grade Chain
Be the first to review RK CHAIN 520XSO2-102 - PRO X-RING. Write a review