Product Colors and Sizes
- Black Friday product
- New Deal product
- Cyber Monday product
- Sale product
- Best Seller product
- Ecodesign product
- New product
- Staff Pick product
- In The News product
- Innovation product
- product
- Black Friday product
- New Deal product
- Cyber Monday product
- Sale product
- Best Seller product
- Ecodesign product
- New product
- Staff Pick product
- In The News product
- Innovation product
- product
Btwin, 9-Speed Bike Chain
Our chain was designed in collaboration with KMC, a globally-recognized brand and a leader in bike drivetrain parts. The chain has 118 links and is sold with a quick release
Free shipping over $35
Free pickup
San Francisco, 735 Market St. Options
Select an available color and size to see options.
Product Features

Compatibility
For 9-speed transmissions of all brands.
Product Customer Reviews

Works well. Great speed link.
It's a KMC chain boxed up in a Decathlon box. From what I can tell, it's a KMC X9 Grey chain. Cheaper than buying it in a KMC box. It's been on my bike now for a couple of months and I'm still happy with it.
I damaged the chain and needed 6 pairs of hands to join the chain. Pin wouldn’t push through and damaged the chain do have to go back and buy another chain and separate split link. So not impressed at all.
Did the job, no quick link though so a little dissapointed
Renewed this along with a new cassette, have used B’TWIN chains for ages and they’ve never let me down, great quality and value with brilliant guarantee
I've been using these chains for many years and cannot fault them
Chain was shimano so it's good and I had issue with its chain link it was bent while I purchase the cycle, so I replaced it with new one and it provide easy movement with less noise and less friction its a good quality one...
After fitment I did 300BRM, chain set supported well.
Blindly go for it
Compatible
Špatná kvalita. Řetěz vydržel cca 10 krátkých nenáročných vyjížděk kolem města na podzim (cca 30-50km), pak jsem zazimoval kolo. Na jaře jsem kolo opět ošetřil, promazal... a hned při rozjezdu po rovině a prvním lehkém šlápnutí do pedálu praskl jeden článek řetězu. Příště koupím raději Shimano.
Dobrý den, Ondřeji,
velice děkujeme za Váš čas věnovaný recenzi tohoto produktu. Každá zkušenost je velmi cenná a pomáhá nám s vývojem nových modelů.
Je nám líto, že kvalita řetězu neodpovídá Vašim požadavkům. Z toho, co popisujete, se domníváme, že by se mohlo jednat o vadný kus.
Ráda bych Vás proto pozvala na Vaši nejbližší prodejnu Decathlon, kde můžete produkt reklamovat.
Omlouváme se za komplikace.
Tereza
Jsou jistě i lepší, ale poměr cena/výkon je ok
Velmi nekvalitní, vydrží tak 500 km. Za podobnou cenu raději Shimano.
Dobrý den, Petře,
velice děkujeme za Váš čas věnovaný recenzi tohoto produktu. Každá zkušenost je velmi cenná a pomáhá nám s vývojem nových modelů.
Je nám líto, že kvalita řetězu neodpovídá Vašim požadavkům. Domníváte-li se, že se ve Vašem případě jedná o vadný kus, neváhejte produkt reklamovat na libovolné prodejně Decathlon.
S láskou ke sportu
Karolína
Tak nevím, mažu, čistím... výdrž ale malá.. koupená nová kazeta SRAM a za 500km opět po novém řetězu skáče malé kolečko. Ještě že se dají malé pastorky koupit z číny za 30kc ... teď jsem koupil shimano tak uvidim, jestli má cenu kupovat tohle levný něco ??? (koupeno asi 4x)
Řetěz vypadá kvalitně vyroben a za tu cenu je to dobrá koupě.
Additional Product Information
Composition
Main fabric
- 100% Steel
Mounting
Easy assembly by adapting the chain length with a chain tool available on our website (ref: 8351521)
Dismantling
Easy disassembly using a quick-release chain tool and/or a chain tool available on our website (ref: 8352339 and 8351521)
Number of links
117 + 1 quick release = 118 total
Origin
Imported
Superior quality. Unbeatable prices.
For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.
Decathlon makes the difference
-
Research and development
delivers high-quality cost-effective products
-
State-of-the-art production processes
minimize manufacturing costs
-
Optimized supply chain
reduces retail prices
-
Minimal retail footprint
lowers overhead and indirect costs

Btwin, 9-Speed Bike Chain
Your location: City, ST
Please enter a valid city with state or zipcode. Example: San Francisco, CA or 94101
Order online for
Heavy products return policy
If you return a product you will receive a refund for the purchase price plus any applicable sales taxes, less any non-refundable charges.
Decathlon will cover all shipping costs associated with your return except for items excluded from our return policy such as bikes, basketball hoops, snowboards, surfboards, tents, and other larger / heavier items.
Return costs for heavy products:
Weight Thresholds | Shipping within California | Shipping outside of California |
---|---|---|
> 9 lbs | $20.00 | $25.00 |
> 30 lbs | $50.00 | $65.00 |
> 100 lbs | $100.00 | $125.00 |
> 200 lbs | $200.00 | $230.00 |
If you return a product at any of our store locations, we will gladly help you find the best alternative product or refund you on the spot.
