2pcs Bicycle Chain Tensioner Adjuster Aluminum Alloy Chain Fastener for BMX Fixie Bike Single Speed Bicycle
Condition: New
$9.99
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Availability:
In Stock.
Arrives
Monday, Nov 2
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At a glance
- Condition
- New
- Color
- Red
- Weight
- 0.03 kg
- Material
- Aluminum
- Suggested Users
- mens
- Size
- 3/8" (10mm)
- In the box
- Pair of 2 Chain tensioners
Features 5
- Material: The bicycle chain tightener is made of high-strength aluminum alloy with upgraded CNC process, wear-resistant and anti-corrosion
- Bright Color: CNC cutting with smooth surface and edges; the surface is anodized with bright colors and luster, making your bike more cool and fashion
- Function: Prevent the chain from falling off and avoids tangle and keeps the frame from scratching. Provide a simple, effective and adjustable way to tension a single speed system
- Easy to install: No need other complicated tools. Installation is simple and quick, make chain adjustment easy
- Application: Fits 3/8 Inch (10 mm) axles, universally for single speed mountain bikes road bicycles cycling
Specs 10
| Item Package Dimensions L x W x H | 3.5 x 2.68 x 0.59 inches |
|---|---|
| Package Weight | 0.03 kg |
| Item Weight | 0.03 kg |
| Brand Name | Saipe |
| Model Name | Bike Chain Tensioner |
| Color | Red |
| Material | Aluminum |
| Suggested Users | mens |
| Manufacturer | Saipe |
| Size | 3/8" (10mm) |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Nov 2
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Excellent Product with Understated Bling
Color: Red
The best chain rug I’ve ever used. I’ve been commuting single speed bikes for 20+ years and have used many different chain tensioners. This one is the best by far for the following reasons: -The hex nut style tension adjustment is much better than using a conventional spanner nut -Improved mating to the frame and wheel slot -Looks much more refined, almost a form of under stated bike bling -High quality manufacturing I like it so much I bought a second for my rain commuter.
...
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Reviewed in the United States on January 8, 2026 by McGovs
Perfect fit - does exactly what I need it to
Color: Black
My Aventon Mataro did not have any chain tugs and there was a slight strip in the thru-axle thread for my rear wheel. This resulted in the lug nut on the drive chain side to slip and not keep the chain tension required and the wheel tilting and catching on the frame. This chain tugs are so simple but effective. I thought they wouldn't fit at first but realized that it's meant to be integrated into the horizontal dropouts unlike some cheaper chain tugs that offset the frame washer. Perfectly fits and seems well constructed. I'll update if they explode while I ride
...
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Reviewed in the United States on December 1, 2023 by Tuan
Junk
Color: Black
Don't buy these they are crappie. They fall apart.
Reviewed in the United States on July 3, 2026 by Laura Hagerth
Materials making the product
Color: Red
Cheap will not work for any application
Reviewed in the United States on June 30, 2026 by Marc W.
Cheap Metal
Color: Red
They look decent , but the metal is cheap..They broke while adjusting
Reviewed in the United States on July 8, 2026 by Amazon Customer
Made a Big Difference
Color: Black
I put these on my single speed to make it easier to get my chain tensioned correctly. These are really inexpensive, and probably one of the best things I've got for my bike in terms of value. These are very easy to install; they don't even come with instructions, given how obvious it is how these go together. They come with a few different options in screw lengths, so it seems like they would fit just about any bike. These actually made a bigger difference than I would have thought in terms of how well my bike performs, so if you have a bike that these work with, I'd highly recommend them.
...
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Reviewed in the United States on December 14, 2023 by C. M. D.
Seem good, didn’t work for me.
Color: Black
Did not work for my bike. A 2011 Bianchi Pista with 5mm thick track fork ‘drops’. The banjo washer is too thick where the bolt threads so that it would sit inside the dropout and contact the axle lock nut. They do appear to be well made/machined and it’s nice that they come with 3 different length screws with thread lock for different tension needs.
...
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Reviewed in the United States on May 12, 2025 by Conrad L. Jackson
Good chain tensioner
Color: Black
Didn’t expect much from these but I actually like them a lot
Reviewed in the United States on November 3, 2025 by B