RK Sprocket Rear -B3106-43 JTR838 Afam 12200 3483843

Rear Sprocket
Sprocket Rear RK B3106 43 JTR838 Afam 12200 Sprocket rear back wheel RK B3106 43 JTR838 Afam 12200 Sprocket Rear RKxB3106x43 JT JTR 838 Afam 12200 Sprocket Rear RK B3106 43 JTR838 Afam 12200 838 43 Steel 12200 B3106 3483843 SKU3483843 Sprocket Rear RK B3106 43 JTR838 Afam 12200 Rear Sprocket Street Steel Sprockets Rear steel sprockets B3106 43
  • £9.52 (Exc. VAT)
+ 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

The vast majority of our sprocket stock is now genuine RK, Supersprox or AFAM. This percentage will increase to 100% as we replace stock

All genuine RK, Supersprox or AFAM rear steel sprockets are manufactured from C45 High quality Steel.

Please note: on occasion we may supply a substitute brand of a similar high quality in order to be able to maintain supply.

IF YOU WANT A SPECIFIC BRAND of sprocket. Please contact our sales office directly or make a note on your order. We will endeavour to supply the brand you want and will contact you if it is unavailable with options/p>

  • AFAM ref.:
  • Teeth:
  • Material:
  • Centre:
  • RK Ref:
  • Application:
  • Position:

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

  • Yamaha: YBR 125Custom

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 YBR 125 Custom 2007 N/A
Yamaha YBR 125 Custom 2008 N/A
Yamaha YBR 125 Custom 2009 N/A
Yamaha YBR 125 Custom 2010 N/A
Yamaha YBR 125 Custom 2011 N/A
Yamaha YBR 125 Custom 2012 N/A
Yamaha YBR 125 Custom 2013 N/A
Yamaha YBR 125 Custom 2014 N/A
Yamaha YBR 125 Custom 2015 N/A
Yamaha YBR 125 Custom 2016 N/A
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