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Btwin 900, Bike Chain Tool
Remove, repair and refit your bike's chain. Compatible with 1 to 11-speed chains of all brands
Free returns
Free shipping over $35
Free pickup
San Francisco, 735 Market St. Options
Select an available color and size to see options.
Product Videos
Product Features

Compatibility
Compatible with all standard chain types (1 to 11 speeds).
Weight
6.2 oz.
Product Customer Reviews

Good piece of kit and did exactly what I needed it for.
Easy to use
Needed to replace the chain on my bike and this little tool makes the job very quick and simple.
The metal pin got bent when trying to break the chain. Fair enough it wasn't 100% aligned but I was expecting more from this. Cheap quality
I have absolutely no idea why some people are saying this breaks after first use... I purchased this alongside the B'TWIN branded KMC X10-XL 10 speed, and cut through it like butter, with no fuss whatsoever! Excellent.
I wanted this chain tool as a sturdier option than the Btwin 500 chain tool I already have. It looks robust, yet after a couple of uses the pin bent and the tool was not longer fit for purpose. On that basis, I have to give this item a one-star review, which disappoints me as I'm usually very happy with Decathlon products. I eventually returned the damaged tool to Btwin and due to some confusion received a second Btwin 500 instead of the 900 I bought. I can't be bothered to return the duplicate as I've spent enough money, time and effort on an item costing less than £10.
Regards,
Peter Lazarus, National Cycling Manager, DECATHLON
Feels robust, and well made. Handle gives good leverage
The pin bent on it after the second link! It looks good feels good but not of the highest quality
Please return it to us for an exchange or a refund.
regards,
Peter Lazarus UK Cycling Market Manager DECATHLON
falls to bits first use
If you could feed back some more information as to what has happened to your bike tool that would be fantastic so I can pass this on to the product manager. In the mean time, you are more than welcome to return for an exchange or refund.
Rob Basnett b'Twin Product Expert DECATHLON
Had tools like this for years but some last a few times then break or the pins bend but this one looks like it will last a long time might even be strong enough to break my motorcycle chain
It got broken on first use. I needed to remove a couple of chains and put them back and I just was able to do one and it was broken. I couldn't believe as I wasn't expecting a life tool, but at least something useful for a while. I got it last week and now I am stuck and withouth bicyle and need to look another way to put chain. I can't recomend this product.
Pevný, robusní, plně funkční pro řetězy 1 - 10
Zatím jsem spokojen. Funguje dobře.
Funktioniert einwandfrei
handliches Tool. Funktioniert einwandfrei
Additional Product Information
Composition
Chassis
- 100% Steel
Handle
- 100% Polyamide
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 900, Bike Chain Tool
Your location: City, ST
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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.
