RK Sprocket Rear -B5631-42 JTR899 Afam 71800 3420932

Rear sprocket
Sprocket Rear RK B5631 42 JTR899 Afam 71800 Sprocket rear back wheel RK B5631 42 JTR899 Afam 71800 Sprocket Rear RKxB5631x42 JT JTR 899 Afam 71800 Sprocket Rear RK B5631 42 JTR899 Afam 71800 2093 42 Steel 71800 B5631 3420932 SKU3420932 Sprocket Rear RK B5631 42 JTR899 Afam 71800 Rear sprocket Street Steel Sprockets Rear steel sprockets B5631 42
  • £17.04 (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
2093 sprocket - 42 teeth

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.

  • KTM: Adventure 1190 /R, Adventure 950, Adventure 950LC8, Adventure 990 /S/R, Supermoto 950 /R

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
KTM Supermoto 950 /R 2005 N/A
KTM Supermoto 950 /R 2006 N/A
KTM Supermoto 950 /R 2007 N/A
KTM Adventure 990 /S/R 2010 N/A
KTM Adventure 990 /S/R 2011 N/A
KTM Adventure 990 /S/R 2012 N/A
KTM Adventure 950 LC8 2004 N/A
KTM Adventure 950 LC8 2005 N/A
KTM Adventure 950 LC8 2006 N/A
KTM Supermoto 950 /R 2008 N/A
KTM Adventure 990 /S/R 2013 N/A
KTM Adventure 950 LC8 2003 N/A
KTM Adventure 1190 /R 2013 N/A
KTM Adventure 1190 /R 2014 N/A
KTM Adventure 1190 /R 2015 N/A
KTM Adventure 1190 /R 2016 N/A
KTM Supermoto 950 /R 2009 N/A
KTM Supermoto 950 /R 2010 N/A
KTM Adventure 950 2002 N/A
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