10 Best Bike Derailleurs | June 2023 (Reviewed & Ranked)
 Last updated on June 12, 2023
11 minutes
Our comprehensive list contains detailed information about each product, including features, performance ratings, customer reviews and more. We have taken into account all aspects of a good bike derailleur in order to provide you with accurate information that will help you find the perfect fit for your cycling needs. With our list at hand, you'll be able to quickly identify which products offer superior quality and value for money – ensuring that you get the most out of your investment!
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OUR TOP PICKS
Top #1

MEGHNA Shimano Rear Derailleur RD-TZ31-A 6/7 Speed Direct Mount for Mountain Bike

Top #2

MEGHNA Shimano Tourney RD-TY300 6/7-Speed Rear Derailleur Road MTB Bike Mountain Bike Direct Mount

Top #3

ENBO Shimano Bike Rear Derailleur RD-TY300 6/7 Speed Rear Derailleur Road MTB Bike Mountain Bike Dir...

A Few Of Our Ranking Metrics:
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Analyzed
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Considered
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Inspected
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Check below for our tips on purchasing the best Bike Derailleurs:
View Buying GuideThe 10 best Bike Derailleurs
Top #1
MEGHNA Shimano Rear Derailleur RD-TZ31-A 6/7 Speed Direct Mount for Mountain Bike

91%
Customer
Satisfaction
100%
Overall
Score
94%
Product
Quality

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.
Top #2
MEGHNA Shimano Tourney RD-TY300 6/7-Speed Rear Derailleur Road MTB Bike Mountain Bike Direct Mount

94%
Customer
Satisfaction
94%
Overall
Score
89%
Product
Quality

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.
Top #3
ENBO Shimano Bike Rear Derailleur RD-TY300 6/7 Speed Rear Derailleur Road MTB Bike Mountain Bike Direct Mount

90%
Customer
Satisfaction
93%
Overall
Score
89%
Product
Quality

WHAT WE LIKE:
The best features of this product are that it is a rear derailleur and it is compatible with 6 and 7-speed SIS INDEX variable speed transmissions systems.
Pros & Cons From Reviewers:
It is easy to install and adjust.
It is easy to set up and use.
Top #4
SHIMANO Altus Mountain Bike Rear Derailleur - Direct Mount - RDM310

94%
Customer
Satisfaction
93%
Overall
Score
86%
Product
Quality

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.
Top #5
Inkesky RD-TZ31-GS 6/7 Speed Rear Derailleur with Direct Mount, Medium Cage, for Mountain Bike

92%
Customer
Satisfaction
92%
Overall
Score
89%
Product
Quality

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.
Top #6
SRAM XX1 Eagle AXS Upgrade Kit - Rear Derailleur, Battery, Eagle AXS Controller w/ Clamp, Charger/Cord

91%
Customer
Satisfaction
92%
Overall
Score
91%
Product
Quality

WHAT WE LIKE:
Instant shifting. Short cage for more ground clearance. Customizable touchpoints.
Pros & Cons From Reviewers:
It is easy to install.
The shift system is smooth and sure.
The shifting is perfect every time.
Top #7
MOHEGIA Bike Rear Derailleur -6/7/8 Speed Hanger Mount/Direct Mount for MTB Mountain Bicycle

90%
Customer
Satisfaction
92%
Overall
Score
85%
Product
Quality

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.
Top #8
THALOUS Bicycle Rear Derailleur Tourney RD-TY21B 6/7 Speed for MTB Bike Direct Mount/Hanger Mount

91%
Customer
Satisfaction
91%
Overall
Score
88%
Product
Quality

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 not a derailer.
Top #9
MEGHNA Shimano Altus Rear Derailleur RD-M310 7/8 Speed Mountain Bike Rear Derailleur Direct Mount

92%
Customer
Satisfaction
90%
Overall
Score
86%
Product
Quality

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.
Top #10
SHIMANO XT RD-M8100-SGS RD-M8120-SGS Rear Derailleur - 12-Speed, Long Cage, Black

92%
Customer
Satisfaction
90%
Overall
Score
87%
Product
Quality

WHAT WE LIKE:
Fast, shockless shifting. Low profile design. Increased efficiency.
Pros & Cons From Reviewers:
It is effective.
The packaging is good.
The derailleur is very precise and smooth.
Bike Derailleurs Buying Guide : What You Need To Know

*Our top pick for the best Bike Derailleurs
Attributes Of High Quality Bike Derailleurs
- Durable construction: High quality bike derailleurs are built to last.
- Smooth shifting: They provide smooth and precise gear changes.
- Low maintenance: Quality derailleurs require minimal upkeep for optimal performance.
- Lightweight design: Good derailleurs are designed with lightweight materials that won't add unnecessary weight to the bicycle frame.
- Adjustability features: Quality models offer adjustable tension settings, allowing riders to customize their ride experience according to terrain or personal preference.
How To Choose The Best Bike Derailleurs
Bike derailleurs are an essential part of any cyclist’s toolkit. They allow you to shift gears quickly and smoothly, making your ride more enjoyable and efficient. But with so many different types of bike derailleurs on the market, it can be difficult to know which one is right for you. Here are some tips to help you choose the best bike derailleur for your needs:
1. Consider Your Riding Style: The type of riding you do will determine what kind of bike derailleur is best for you. If you’re a mountain biker, then a mountain-specific rear derailleur will give you the most reliable shifting performance in rough terrain. For road cyclists, look for a lightweight model that offers precise shifts without sacrificing durability or reliability.
2. Look at Compatibility: Make sure that the bike derailleur is compatible with your drivetrain components (chainrings, cassette cogs, shifters). Most modern bikes use Shimano or SRAM components, so make sure that your chosen derailleur matches up with these systems before buying it.
3. Choose the Right Cage Length: The cage length determines how much chain slack there is when switching between gears – too little chain slack can cause poor shifting performance while too much chain slack can lead to excessive noise and wear on other components such as jockey wheels and pulleys. Generally speaking, longer cages are better suited for mountain biking while shorter cages work well for road cycling due to their lighter weight and smaller size.
4. Check Out Reviews: Before purchasing a new bike derailleur, take some time to read reviews from other riders who have used the same product in order to get an idea of its performance in real-world conditions. This will help ensure that you get a quality product that performs as advertised and meets all your expectations when it comes time to hit the trails or roads!
5. Set Your Budget: Bike derailleurs come in all shapes and sizes – from basic models suitable for casual riders up through high-end racing models designed specifically for professional athletes – so set yourself a budget before shopping around in order to narrow down your options based on price alone if necessary!
Following these tips should help make choosing the right bike derailleur easier than ever before! Just remember to consider your riding style, check compatibility with other components, select an appropriate cage length based on your needs, read reviews from other users and set yourself a budget before making any final decisions!
What To Avoid When Looking For The Best Bike Derailleurs
When it comes to choosing the best bike derailleurs for your ride, there are a few things you should avoid. Rear bike derailleurs are an important component of any bicycle and can make or break your cycling experience. Here is what to look out for when selecting the right rear bike derailleur:
1. Poor Quality Materials: Make sure that the materials used in the construction of your rear bike derailleur are of high quality and will last through many rides. Avoid cheap plastic parts as they tend to wear down quickly and may not be able to handle more intense riding conditions.
2. Low-Quality Gears: The gears on a rear bike derailleur need to be strong enough to handle different terrain types without slipping or skipping shifts. Look for gears made from durable metals such as steel or aluminum that won’t easily bend or break under pressure.
3. Unreliable Shifting System: The shifting system on a rear bike derailleur needs to be reliable so that you can shift smoothly between gears without having any issues with misalignment or slippage during use. Avoid models with complicated systems that require frequent maintenance and adjustments in order to keep them running properly.
4. Incompatible Parts: Make sure all components of your rear bike derailleur are compatible with each other before purchasing them separately, otherwise you could end up with an incompatible setup which could lead to poor performance and even damage over time if not corrected immediately after installation.
5. Overpriced Models: While it’s true that higher-end models usually offer better performance than their cheaper counterparts, don’t let yourself get taken advantage of by overpriced models just because they have fancy features or flashy designs – always compare prices between similar products before making a purchase decision in order to get the most bang for your buck!
Additional Details
As a result of our extensive research into the best Bike Derailleurs, we discovered 804 products and condensed that list down to the top 10 products. Using our state-of-the-art AI powered system, we've collected and anayzed 14,316 customer reviews, compared 86 product features, and cross-examined 284 product specifications. From this data, we've discovered that most customers purchase Bike Derailleurs that costs around $16.99 and have an average customer rating of 88%.
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