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- Rear Sprockets
- Steel Sprockets
- RK Sprocket Rear RK-B4403-42 JTR 897-42 Afam 71304
- £24.66 £20.55 (Exc. VAT) (Exc. VAT) (Inc. VAT) (Inc. VAT)
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Made from C45 High Carbon steel. The sprocket teeth are heat treated (induction hardening), increasing the wear resistance and surface hardness.
Manufacturer Part No. (MPN): B4403-42NC0
Barcode: 9555387608086
| Alt. Centre: | 897 |
| Colour: | Self |
| Centre: | JTR897 |
| Material: | Steel |
| Position: | Rear |
| Teeth: | 42 |
Fitment Summary
Compatible with 82 models (yearly).
- Husqvarna: Supermoto 701
- KTM: Duke 400, Duke 790, Duke 890, Duke 890L, Duke 890R, Duke II 640, Enduro 400 LC-4, EXC 640 Enduro, LC4 640 Adv., LC4 640 Adv. Enduro, LC4 640 Supermoto, LC4E 640, LC4E 640 Enduro, SC 625 LC4 Supercomp, SMC 690, SMC 690R, Sting 125
Yes, all our RK chains come with a warranty. To ensure the warranty is not voided you must ensure the chain is professionally fitted and new sprockets installed at the same time
RK CHAIN
- Standard X-Ring Chain - 3 Year or 15,000 mile warranty
- Premium X-Ring Chain (Xtreme Upgrade) - 5 Year or 25,000 mile warranty
More Information and Warranty Form Registration: https://www.bickersltd.co.uk/rk-warranty
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
Watch the RK instruction video on how to best maintain your chain: www.youtube.com/watch?v=PIPnLeiTXyk
Safety Data Sheets (SDS) can be downloaded from the 'Downloads' tab on a product page. When not available, please contact us or refer to the manufacturers website linked to at the bottom of each brand page.
Delivery
Regular Delivery Costs & Times
Trade
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.
All third party deliveries will carry a charge, the minimum charge will be £9.95 (Exc. VAT).
Pallet Charges
Larger items may incur additional carriage charges, including but not limited to 4x4 and SUV tyres.
An overview of charges per pallet for each region is available to view here: https://www.google.com/maps/d/viewer?mid=11ydN7ZJNHKHf9Ygd0ih_L6-U1dMq31A
Consumer
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).
Any returns will be handled by the collection point.
- Free for orders over £100
- £11.95 fee for orders below £100
Read our full delivery policy here
Returns
Trade
Please complete the Trade Returns form or contact our Sales Office
Consumer (Click & Collect)
Your click and collect location will handle any returns for you. Please contact the original collect point/dealer to discuss returns and ensure the item is returned to that location..
Alternatively, please use the Returns form.
If you experience issues when attempting to contact the collection point/dealer, please contact us.
| Make | Model | Engine/Variant | Year | Notes |
| KTM | Sting | 125 | 1997 | Chain Pitch: 520 |
| KTM | Sting | 125 | 1998 | Chain Pitch: 520 |
| KTM | Sting | 125 | 1999 | Chain Pitch: 520 |
| KTM | Duke | 400 | 1994 | Chain Pitch: 520 |
| KTM | Duke | 400 | 1995 | Chain Pitch: 520 |
| KTM | Enduro | 400 LC-4 | 1997 | Chain Pitch: 520 |
| KTM | Enduro | 400 LC-4 | 1998 | Chain Pitch: 520 |
| KTM | SC | 625 LC4 Supercomp - Supercomp | 2002 | Matched Alternative |
| KTM | SC | 625 LC4 Supercomp - Supermoto | 2002 | Matched Alternative |
| KTM | SC | 625 LC4 Supercomp - Supermoto | 2003 | Matched Alternative |
| KTM | SC | 625 LC4 Supercomp - Supermoto | 2004 | Matched Alternative |
| KTM | Duke II | 640 | 2004 | |
| KTM | Duke II | 640 | 2005 | |
| KTM | Duke II | 640 | 2006 | |
| KTM | Duke II | 640 | 2007 | Chain Pitch: 520 |
| KTM | EXC | 640 Enduro | 1997 | Chain Pitch: 520 |
| KTM | LC4 | 640 Adv. | 2001 | |
| KTM | LC4 | 640 Adv. | 2002 | |
| KTM | LC4 | 640 Adv. | 2003 | |
| KTM | LC4 | 640 Adv. | 2004 | |
| KTM | LC4 | 640 Adv. | 2005 | |
| KTM | LC4 | 640 Adv. | 2006 | |
| KTM | LC4 | 640 Adv. | 2007 | |
| KTM | LC4 | 640 Adv. Enduro | 1998 | Chain Pitch: 520 |
| KTM | LC4 | 640 Adv. Enduro | 1999 | |
| KTM | LC4 | 640 Adv. Enduro | 2000 | |
| KTM | LC4 | 640 Supermoto | 1998 | Chain Pitch: 520 |
| KTM | LC4 | 640 Supermoto | 1999 | Chain Pitch: 520 |
| KTM | LC4 | 640 Supermoto | 2000 | Chain Pitch: 520 |
| KTM | LC4 | 640 Supermoto | 2001 | Chain Pitch: 520 |
| KTM | LC4 | 640 Supermoto | 2002 | Chain Pitch: 520 |
| KTM | LC4 | 640 Supermoto | 2003 | Chain Pitch: 520 |
| KTM | LC4 | 640 Supermoto | 2004 | Chain Pitch: 520 |
| KTM | LC4 | 640 Supermoto | 2005 | Chain Pitch: 520 |
| KTM | LC4 | 640 Supermoto | 2006 | Chain Pitch: 520 |
| KTM | LC4 | 640 Supermoto | 2007 | Chain Pitch: 520 |
| KTM | LC4E | 640 | 2007 | Chain Pitch: 520 |
| KTM | LC4E | 640 Enduro | 1998 | Chain Pitch: 520 |
| KTM | LC4E | 640 Enduro | 1999 | Chain Pitch: 520 |
| KTM | LC4E | 640 Enduro | 2000 | Chain Pitch: 520 |
| KTM | LC4E | 640 Enduro | 2001 | Chain Pitch: 520 |
| KTM | LC4E | 640 Enduro | 2002 | Chain Pitch: 520 |
| KTM | LC4E | 640 Enduro | 2003 | Chain Pitch: 520 |
| KTM | LC4E | 640 Enduro | 2004 | Chain Pitch: 520 |
| KTM | LC4E | 640 Enduro | 2005 | Chain Pitch: 520 |
| KTM | LC4E | 640 Enduro | 2006 | Chain Pitch: 520 |
| KTM | SMC | 690 | 2008 | Chain Pitch: 520 |
| KTM | SMC | 690 | 2009 | Chain Pitch: 520 |
| KTM | SMC | 690 | 2010 | Chain Pitch: 520 |
| KTM | SMC | 690 | 2011 | |
| KTM | SMC | 690 | 2012 | |
| KTM | SMC | 690 | 2013 | |
| KTM | SMC | 690 | 2014 | |
| KTM | SMC | 690 | 2015 | |
| KTM | SMC | 690 | 2016 | Chain Pitch: 520 |
| KTM | SMC | 690 | 2017 | Chain Pitch: 520 |
| KTM | SMC | 690 | 2018 | Chain Pitch: 520 |
| KTM | SMC | 690 | 2019 | Chain Pitch: 520 |
| KTM | SMC | 690 | 2020 | Chain Pitch: 520 |
| KTM | SMC | 690 | 2021 | Chain Pitch: 520 |
| KTM | SMC | 690 | 2022 | Chain Pitch: 520 |
| KTM | SMC | 690 | 2023 | Chain Pitch: 520 |
| KTM | SMC | 690 R | 2021 | Chain Pitch: 520 |
| KTM | SMC | 690 R | 2022 | Chain Pitch: 520 |
| KTM | SMC | 690 R | 2023 | Chain Pitch: 520 |
| KTM | SMC | 690 R | 2024 | Chain Pitch: 520 |
| Husqvarna | Supermoto | 701 - 4T | 2016 | Chain Pitch: 520 |
| Husqvarna | Supermoto | 701 - 4T | 2017 | Chain Pitch: 520 |
| Husqvarna | Supermoto | 701 - 4T | 2018 | Chain Pitch: 520 |
| Husqvarna | Supermoto | 701 - 4T | 2019 | Chain Pitch: 520 |
| Husqvarna | Supermoto | 701 - 4T | 2020 | Chain Pitch: 520 |
| Husqvarna | Supermoto | 701 - 4T | 2021 | Chain Pitch: 520 |
| KTM | Duke | 790 | 2019 | Chain Pitch: 520 |
| KTM | Duke | 790 | 2020 | Chain Pitch: 520 |
| KTM | Duke | 890 | 2021 | Chain Pitch: 520 |
| KTM | Duke | 890 | 2022 | Chain Pitch: 520 |
| KTM | Duke | 890 | 2023 | Chain Pitch: 520 |
| KTM | Duke | 890 L | 2021 | Chain Pitch: 520 |
| KTM | Duke | 890 L | 2022 | Chain Pitch: 520 |
| KTM | Duke | 890 L | 2023 | Chain Pitch: 520 |
| KTM | Duke | 890 R | 2021 | Chain Pitch: 520 |
| KTM | Duke | 890 R | 2022 | Chain Pitch: 520 |
| KTM | Duke | 890 R | 2023 | Chain Pitch: 520 |