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RK Xtreme Upgrade kit Yamaha YS125 17-19 3602126XRK

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RK chains Xtreme OE upgrade chain and sprocket kit | Sprocket Rear RK-B3226-43 JTR1844 Afam 12227 | Sprocket Front RK-C3454-14 Afam 21209 JTF 1559-14 | CHAIN RK GS428KRO-126 GOLD - PRO O-RING (Low Stock)
  • £66.68 (Exc. VAT)
Order within for delivery from Tuesday 5th July
+ In Stock Now   |   Usually dispatched within 24 hours
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

RK Xtreme OE upgrade chain and sprocket kits contain premium OE upgrade RK drive chain

All sealed ring drive chains and chain and sprocket chain and sprocket kits carry a guaranteed mileage warranty when fitted with the new sprockets supplied.

Terms and conditions apply.

Barcode: 5056343041038
Grade:RK X UG

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

  • Yamaha: YS 125

Colour: Gold
Pitch: 428
Length: 126
Sealed: Yes
Type: KRO
Tensile Lb: 5395
Tensile N: 24000
Grade: H Duty O Ring
Sprocket Front RK-C3454-14 Afam 21209 JTF 1559-14
Position: Front
Centre: 21209
Teeth: 14
Material: Steel
Sprocket Rear RK-B3226-43 JTR1844 Afam 12227
Position: Rear
Centre: 1843
Teeth: 43
Material: Steel
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:


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 YS 125 2017 Xtreme Kit
Yamaha YS 125 2018 Xtreme Kit
Yamaha YS 125 2019 Xtreme Kit
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