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Best derailleurs parts - April 2026

Last Updated - April 4, 2026

1
Best Choice

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

BIYDOO

BIYDOO Bicycle Rear Derailleur Tourney RD-TZ31 6/7 Speed Direct Mount for MTB Bike

BIYDOO

$17.99

More Details
Main highlights
- Wide Application: Suitable for variable speed bikes, mountain bikes, road bikes, folding bikes, city bikes, tricycles, and more.
- Stable Performance: Forged from high-quality and durable aluminum alloy material, adjustment is more precise, ensuring stable gear shifts for a safer cycling experience.
- Note: Your satisfaction is of utmost importance to us. We are committed to providing high-quality customer service. If you have any questions, feel free to contact us anytime, and we will provide you with a satisfactory response.
- Model: RD-TZ31-A-GS,bike rear derailleur. Compatible with 6/7 Speed SIS index Shifting drivetrains.
- Direct Mount: The bike rear derailleur is direct mount, not hub bolt mount.Before purchase, please confirm whether the rear derailleur on your bicycle is a direct mount or a hanger mount.
$17.99
2

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Aikolesa

6/7 Speed Bike Rear Derailleur,RD-TY300 Bicycle Rear Derailleur with Direct Mount for Mountain Bike Road Bikes

Aikolesa

$16.99

More Details
Main highlights
- Wide Application: Fits standard 6/7-speed direct mount, making it ideal for MTBs, gravel, and touring bikes.
- Ultra-Durable Build: High-Quality Aluminum Alloy - Lightweight yet tough, built to withstand mud, water, and heavy-duty riding. Pulleys for silent, long-lasting performance in all conditions.
- Multi-Speed Compatibility: Works seamlessly with 6/7-speed drivetrains and 8/7/6-speed chains. Perfect for mountain, road, and hybrid bikes.
- MODEL: Bicycle rear derailleur RD-TY300, compatible with 6 and 7-speed SIS INDEX variable speed transmission systems.
- Advanced Gear Range: 43T Total Capacity - Handles extreme gear ranges, with a max/min tooth difference of 20T, 14-34T cassette compatibility ideal for steep climbs and high-speed flats.
$16.99
3
Best Value

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Inkesky

Inkesky RD-TZ31-GS 6/7 Speed Rear Derailleur with Direct Mount, Medium Cage, for Mountain Bike

Inkesky

$16.38

More Details
Main highlights
- [IMPORTANT] It's Direct Mount Rear Derailleur for Mountain Bike, not Hanger mount
$16.38
4

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Huazu

Huazu Rear Derailleur for RD-TZ31-A, Bike Parts Gear Shifter with Direct Mount/Hanger Mount for 6/7 Speed Mountain Bicycles

Huazu

$16.18

More Details
Main highlights
- STABILITY: Durable aluminum alloy and plastic alloy material, Providing excellent shifting performance ensure safe and stable.
- PARM: Total capacity 34T, Largest sprocket 28T, Smallest sprocket 14T, Front chain wheel tooth difference 20T.
- NOTE: The bike rear derailleur is direct mount, not hub bolt mount. Please check the mount type of the original part before ordering, if bike frame with hook, as picture shows, you can use it.
- MODEL: RD-TZ31-A bike rear derailleur, Compatible with GS 6 / 7 speed SIS Index Shifting drivetrains.
- COMPATIBILITY: Suitable for mountain bikes, road bikes, folding bicycles and so on.
$16.18
5

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

KIEVODE

KIEVODE Derailleur Hanger for GT, Aggressor, Avalanche, KHS, Timberline, Kestrel, Kettler, Mongoose - Replacement Hanger Part for Rear Derailleur - for Mountain Bikes, Road Bicycles, and MTBs

KIEVODE

$11.99

More Details
Main highlights
- PREMIUM-QUALITY MATERIALS: Crafted from premium-grade aluminum alloy, our derailleur hanger offers exceptional strength, durability, and corrosion resistance for long-lasting performance.
- PRECISE SHIFTING: A worn or damaged derailleur hanger can significantly impact your bike's shifting performance. By replacing it with this hanger, you can restore smooth and precise gear shifting, allowing you to confidently tackle any terrain and improve your bike's overall performance.
- PERFECT FIT: Designed specifically for GT, Aggressor, Avalanche, KHS, Timberline, Kestrel, Kettler, and Mongoose, etc bikes, including Part Numbers ATIDH0239, ATIDH0246, ATIDH0071, as well as other models with the same shape, ensuring a precise and secure fit. (please refer to the product description for a complete list).
- ESSENTIAL SPARE PART: The derailleur hanger is a critical component of your bike's drivetrain system. Having a spare hanger on hand ensures you can quickly replace a damaged or bent hanger, minimizing downtime and keeping you on the trails.
- EASY INSTALLATION:The derailleur hanger comes with the necessary mounting screws, making installation a breeze. Remove your old derailleur hanger and replace it with our compatible one to get your bike back on the trails in no time. Note: Before installation, check rear dropouts for alignment to prevent breakage or bending of the derailleur hanger.
$11.99

Best derailleurs parts - April 2026

BIYDOO Bicycle Rear Derailleur Tourney RD-TZ31 6/7 Speed Direct Mount for MTB Bike

6/7 Speed Bike Rear Derailleur,RD-TY300 Bicycle Rear Derailleur with Direct Mount for Mountain Bike Road Bikes

Inkesky RD-TZ31-GS 6/7 Speed Rear Derailleur with Direct Mount, Medium Cage, for Mountain Bike

Huazu Rear Derailleur for RD-TZ31-A, Bike Parts Gear Shifter with Direct Mount/Hanger Mount for 6/7 Speed Mountain Bicycles

KIEVODE Derailleur Hanger for GT, Aggressor, Avalanche, KHS, Timberline, Kestrel, Kettler, Mongoose - Replacement Hanger Part for Rear Derailleur - for Mountain Bikes, Road Bicycles, and MTBs

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