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Best rear derailleurs - 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.

SHIMANO

Shimano RDM310DL Altus GS 7/8-speed Rear Der Black,Long Cage

SHIMANO

$27.50

More Details
Main highlights
- Shifter/Rear Derailleur : Shimano, Speeds: 8sp, Weight: 326g
- Derailleur Color: black, Drivetrain Spacing: Shimano/SRAM 8, Largest Cog: 34teeth
- Chain Wrap Capacity: 43teeth, Derailleur Action: Top-Normal (Traditional)
$27.50
2

✖
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 Altus Rear Derailleur for RD-M310 7/8 Speed for Mountain Bike Direct Mount

Huazu

$18.99

More Details
Main highlights
- PARM: Max Rear Sprocket: 34T, Total Capacity: 43T, Derailleur Action: Top Normal (Traditional), Cage Length: Long.
- MODEL: RD-M310 Altus Rear Derailleur for Compatible with 7/8 Speed / D-ATT Black.
- FEATURES: Advanced light-action design Teflon-coated bushings Direct-attach rear derailleurs.
- EXCELLENT PERFORMANCE: Wide link design ensures durability and precise shifting. Large guide wheel design reduces noise and wear.
- DIRCT MOUNT: Altus rear derailleurs for are direct mount, suitable for mountain bikes, road bikes, folding bikes and so on.
$18.99
3
Best Value
11% Off

✖
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.

Relwears
11% Off

Relwears Tourney Rear Derailleur RD-TY300 6/7Speed Rear Derailleur Direct Mount for Mountain Bike Road Bike Snowmobile Trail Bike

Relwears

$16.99

$18.99
(11% Off)

More Details
Main highlights
- 【Type】Long cage tourney derailleur, RD-TY300-SGS 6/7 speed derailleur is compatible with 11T /14T high speed gear.
- 【Model】RD-TY300-SGS; Bike 6/7 Speed Rear Derailleur for most kinds of bikes like mountain bike, hybrid bike, kids bike, cruiser bike etc.
- 【Features】Smooth shifting, 6/7 speed derailleur is easy and fast to install. Bracket fit (under wheel nut) Long cage tourney derailleur, total capacity 43T, pulley/Teeth 13/13T. Low sprocket: Max. 34T; Low sprocket: Min. 28T; Top sprocket: Max. 14T; Top sprocket: Min. 11T.
- 【Application】RD-TY300-SGS is compatible with 6 and 7-speed SIS INDEX variable speed transmission systems. Suitable for MTB, mountain bikes, road bikes, folding bicycles, commuter bikes, tricycles, eletric bikes etc.
- 【 Stability】Made of high quality durable aluminum alloy material and come with excellent shifting performance ensure your safe and stable while riding.
$16.99
$18.99 (11% Off)
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.

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
5

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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

$16.99

$17.99
(6% Off)

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.
$16.99
$17.99 (6% Off)

Best rear derailleurs - April 2026

Shimano RDM310DL Altus GS 7/8-speed Rear Der Black,Long Cage

Huazu Altus Rear Derailleur for RD-M310 7/8 Speed for Mountain Bike Direct Mount

Relwears Tourney Rear Derailleur RD-TY300 6/7Speed Rear Derailleur Direct Mount for Mountain Bike Road Bike Snowmobile Trail Bike

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

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

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