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5 Best Rear Derailleurs of 2026

Last Updated - 2026/04/04

1
Best Choice

✖
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.

Surface 604

Shimano Alivio Rear Derailleur M3100, 9 Speed, High-Performance, All-Terrain

Surface 604

CA$69.99

More Details
Main highlights
- ✅ [Wide Gear Range] This derailleur is designed to work seamlessly with Shimano's 9-speed drivetrain systems, making it suitable for a wide range of riding styles, from casual commuting to off-road adventures.
- ✅ [Shifting Performance] The Shimano Alivio Derailleur M3100 offers consistent and reliable shifting performance, ensuring smooth and precise gear changes for a more enjoyable riding experience.
- ✅ [Low-Profile Design]: With its sleek low-profile design, the Alivio M3100 minimizes the risk of damage from rocks, roots, and other obstacles often encountered in mountain biking, while also providing improved ground clearance.
- ✅ [Installation & Maintenance] Shimano's user-friendly design philosophy extends to the Alivio M3100, making installation and maintenance straightforward, whether you're a seasoned cyclist or a DIY enthusiast looking to work on your bike.
- ✅ [Durable] The M3100 features robust and durable construction, with high-quality materials that can withstand the rigors of trail riding and challenging conditions, helping to prolong the component's lifespan.
CA$69.99
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.

SHIMANO

SHIMANO Tourney TX RD TX800 7/8-Speed Rear Derailleur, Black 2016 Mountain Bike

SHIMANO

CA$58.20

More Details
Main highlights
- Weight: 150 grams
- Total capacity: 43 teeth
- Permanent switching performance
- Pantograph double servo
- Cable fastening screw with hexagon socket
CA$58.20
3

✖
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 Shimano RD-M310 7/8 Speed for Mountain Bike Direct Mount

Huazu

CA$33.16

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 Shimano 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 Shimano are direct mount, suitable for mountain bikes, road bikes, folding bikes and so on.
CA$33.16
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.

SHIMANO

Shimano Tourney TY500 6/7-Speed Rear Derailleur

SHIMANO

CA$31.75

More Details
Main highlights
- Shimano Tourney Rear derailleur compatible with all Shimano 6 and 7 speed shifters. Advanced light action design
- SIS Rear index shifting. 13 tooth pulleys offer long service life and less noise.
- SGS cage can handle wide range gearing. Direct fit (screws into hole in frame).
CA$31.75
5
Best Value
28% 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.

CHMEFLY
28% Off

CHMEFLY RD-TY21B 6/7 Speed Bike Rear Derailleur Direct Mount for Mountain Bicycle MTB, Road Bikes, Folding Bicycle

CHMEFLY

CA$15.09

CA$20.87
(28% Off)

More Details
Main highlights
- Precise Adjustment: High-hardness aluminum alloy body adjustment, adjustment is more precise. It can be adjusted slightly in multiple places to ensure accurate speed change performance.
- Please feel free to contact if you have any questions, we will provide quality service.
- MODEL:RD-TY21B Bike Rear Derailleur compatible with 6/7 speed SIS Index Shifting drivetrains.Suitable for MTB,mountain bikes, road bikes, folding bicycles etc.
- High-quality material:This bike rear derailleur is made of high hardness aluminum alloy, sturdy and durable, not easily deformed and not easily damaged,And the speed change is more stable.
- Easy to install and remove, convenient to use. This bike rear derailleur is direct mount, not hub bolt mount. Please check the mount type of the original part before ordering.
CA$15.09
CA$20.87 (28% Off)

5 Best Rear Derailleurs of 2026

Shimano Alivio Rear Derailleur M3100, 9 Speed, High-Performance, All-Terrain

SHIMANO Tourney TX RD TX800 7/8-Speed Rear Derailleur, Black 2016 Mountain Bike

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

Shimano Tourney TY500 6/7-Speed Rear Derailleur

CHMEFLY RD-TY21B 6/7 Speed Bike Rear Derailleur Direct Mount for Mountain Bicycle MTB, Road Bikes, Folding Bicycle

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