There are many factors to consider when choosing the best Rear Bike Derailleurs for your needs. We created this list of the best Rear Bike Derailleurs with ratings and reviews to help you make an informed decision.
The type of terrain you ride on, the amount of gears you need, and your budget are all important factors to consider when choosing a Rear Bike Derailleur. We’ve compiled a list of the best Rear Bike Derailleurs on the market, so you can find the perfect one for your needs.
10 Best Rear Bike Derailleurs | June 2023 (Reviewed & Ranked)
Last updated on June 12, 2023
9 minutes
OUR TOP PICKS
Top #1
MEGHNA Shimano Rear Derailleur RD-TZ31-A 6/7 Speed Direct Mount for Mountain Bike
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Top #2
MEGHNA Shimano Altus Rear Derailleur RD-M310 7/8 Speed Mountain Bike Rear Derailleur Direct Mount
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Top #3
MEGHNA Shimano Tourney RD-TY300 6/7-Speed Rear Derailleur Road MTB Bike Mountain Bike Direct Mount
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A Few Of Our Ranking Metrics:
Check below for our tips on purchasing the best Rear Bike Derailleurs:
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The 10 best Rear Bike Derailleurs
Top #1
MEGHNA Shimano Rear Derailleur RD-TZ31-A 6/7 Speed Direct Mount for Mountain Bike
87%
Customer
Satisfaction
100%
Overall
Score
93%
Product
Quality
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WHAT WE LIKE:
The derailleur is made of high quality durable aluminum alloy material. Shifting performance is excellent ensuring your safe and stable while riding. Suitable for MTB, mountain bikes, road bikes, folding bicycles, commuter bikes, tricycles, eletric bikes etc.
Pros & Cons From Reviewers:
It is well made and fit perfectly.
The customer service was great.
It works smoothly.
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Top #2
MEGHNA Shimano Altus Rear Derailleur RD-M310 7/8 Speed Mountain Bike Rear Derailleur Direct Mount
88%
Customer
Satisfaction
98%
Overall
Score
89%
Product
Quality
View on Amazon
WHAT WE LIKE:
The Shimano RD-M310 Altus Rear Derailleur is a top-normal (traditional) cage length derailleur with advanced light-action design that uses teflon-coated bushings and direct-attach rear derailleurs. It is compatible with 7/8 speeds and has a max rear sprocket of 34T.
Pros & Cons From Reviewers:
The Altus replacement is as good as the rear Altus.
It is easy to adjust.
The installation process was easy.
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Top #3
MEGHNA Shimano Tourney RD-TY300 6/7-Speed Rear Derailleur Road MTB Bike Mountain Bike Direct Mount
87%
Customer
Satisfaction
98%
Overall
Score
88%
Product
Quality
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WHAT WE LIKE:
The best features of this product are that it is a smooth shifting derailleur, easy to install, and compatible with SIS index variable speed transmissions.
Pros & Cons From Reviewers:
It is good for the price.
It is fast and easy to order.
The installation process was simple.
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Top #4
MOHEGIA Bike Rear Derailleur -6/7/8 Speed Hanger Mount/Direct Mount for MTB Mountain Bicycle
90%
Customer
Satisfaction
97%
Overall
Score
86%
Product
Quality
View on Amazon
WHAT WE LIKE:
The best features of this product are that it is a rear derailleur compatible with 6/7 speed mountain bikes, it is durable and has excellent shifting performance.
Pros & Cons From Reviewers:
It is good for the price.
The derailleur works with all components on the bike.
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Top #5
SHIMANO Altus Mountain Bike Rear Derailleur - Direct Mount - RDM310
89%
Customer
Satisfaction
96%
Overall
Score
84%
Product
Quality
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WHAT WE LIKE:
This product is a top-normal derailleur that has a chain wrap capacity of 43 teeth. It also comes in black and has a Shimano/SRAM 8 drivetrain spacing. The largest cog is 34 teeth. The shifter/rear derailleur is Shimano and the speeds are 8sp. This product weighs 326g.
Pros & Cons From Reviewers:
The reviewer does not have any negative comments about the product.
It is cheaper than the original.
The derailleur is good for larger wheels.
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Top #6
Inkesky RD-TZ31-GS 6/7 Speed Rear Derailleur with Direct Mount, Medium Cage, for Mountain Bike
85%
Customer
Satisfaction
96%
Overall
Score
88%
Product
Quality
View on Amazon
WHAT WE LIKE:
This product is a Shimano Tourney direct mount rear derailleur that is compatible with 6 and 7-speed SIS Index shifting drivetrains. It has a total capacity of 34T, the largest sprocket size is 28T, and the smallest sprocket size is 14T. The front chainwheel tooth difference is 20T.
Pros & Cons From Reviewers:
It fit the bike well.
It is easy to install.
It works just fine.
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Top #7
Hycline Shimano Bike Rear Derailleur 6/7 Speed Direct Mount/Hanger Mount for Mountain Bicycle
83%
Customer
Satisfaction
96%
Overall
Score
87%
Product
Quality
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WHAT WE LIKE:
The best features of this product are that it is forged with high hardness aluminum alloy, has a hollow weight-reduction design, and can be adjusted slightly in multiple places to ensure accurate speed change performance.
Pros & Cons From Reviewers:
It is effective and fixes the bik.
It is easy to install and adjust.
It works great on a recumbent trike.
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Top #8
THALOUS Bicycle Rear Derailleur Tourney RD-TY21B 6/7 Speed for MTB Bike Direct Mount/Hanger Mount
87%
Customer
Satisfaction
95%
Overall
Score
87%
Product
Quality
View on Amazon
WHAT WE LIKE:
This product is made of high-quality steel, sturdy and durable. It is suitable for variable speed bikes, mountain bikes, road bikes, bicycle racing, city bikes, folding bikes and more. It is a good helper for your riding.
Pros & Cons From Reviewers:
It is easy to adjust the chain so it will not fall off.
It is good for people who want a two-stroke bike and an electric bike.
It is not a derailer.
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Top #9
Yosoo Health Gear Derailleur Hanger, Aluminium Alloy Mountain Bike Rear Derailleur Hanger Derailleur Bracket Replacement, Size 1#
87%
Customer
Satisfaction
94%
Overall
Score
87%
Product
Quality
View on Amazon
WHAT WE LIKE:
This product is made of durable aluminum alloy and comes with screws for easy installation. It fits most types of bikes and can be replaced if needed.
Pros & Cons From Reviewers:
It is good because it helps the son's bicycle to move more easily.
The husband claims that this works really well.
It is good for resurrecting a Mongoose Switchnack.
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Top #10
SRAM X01 Eagle AXS Upgrade Kit - Rear Derailleur for 52t Max, Battery, Eagle AXS Rocker Paddle Controller with Clamp,
97%
Customer
Satisfaction
94%
Overall
Score
91%
Product
Quality
View on Amazon
WHAT WE LIKE:
This is a great product for those looking to upgrade their rear derailleurs. It comes with the SRAM X01 Eagle AXS upgrade kit, which includes all of the necessary parts to make the upgrade.
Pros & Cons From Reviewers:
The AXS is well-made and reliable.
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Rear Bike Derailleurs Buying Guide : What You Need To Know
*Our top pick for the best Rear Bike Derailleurs
Attributes Of High Quality Rear Bike Derailleurs
- The derailleur should be made of lightweight materials such as aluminum.
- The derailleur should have sealed bearings to protect against dirt and water.
- The derailleur should be adjustable so that it can be tuned to work with different gear ratios.
- The cage of the derailleur should be wide enough to accommodate a range of chain widths.
- The pulleys on the derailleur should be smooth and properly aligned in order to minimize friction.
How To Choose The Best Rear Bike Derailleurs
When it comes to choosing the best rear bike derailleurs, there are a few things you need to take into account. The first is the type of bike you have. There are different derailleurs for different types of bikes. For example, if you have a road bike, you will need a different derailleur than if you have a mountain bike.
The second thing to consider is the size of your bike. Different sizes of bikes require different sized derailleurs. You will need to know the size of your frame before you can purchase the correct derailleur.
The third thing to keep in mind is the brand of your bike. Some brands are compatible with certain brands of rear bike derailleurs. It is important to check with your bike's manufacturer to see which brands they recommend.
Once you have considered all of these factors, you should be able to narrow down your choices and find the best rear bike derailleur for your needs.
What To Avoid When Looking For The Best Rear Bike Derailleurs
When choosing the best rear bike derailleurs, there are several things you'll want to avoid in order to make sure you're getting the best possible product. First, make sure to avoid any rear bike derailleurs that don't offer a wide range of gears. You'll want at least 10 speeds to choose from, but more is always better. Second, avoid any rear bike derailleurs that don't have adjustable tension. This is an important feature that allows you to fine-tune the performance of your derailleur. Third, make sure to avoid any rear bike derailleurs that are made from cheap materials. You want a durable product that will last for years to come, so make sure to choose accordingly. Fourth, avoid any rear bike derailleurs that are difficult to install or adjust. The best products on the market should be easy to use and require minimal effort to set up. Finally, avoid any rear bike derailleurs that don't come with a warranty. This is just another way to ensure you're getting a quality product that will stand the test of time. By following these simple tips, you can be confident you're choosing the best possible rear bike derailleur for your needs.