Contents

20 Best 18 Speed Derailleurs of 2023 – Romance University

After hours researching and comparing all models on the market, Romance University finds out the Best 18 Speed Derailleurs of 2023. Check our ranking below.

2,001 Reviews Scanned

Rank No. #1

JinGuoZiLP Transmission Rear Derailleur 18 Speed Road Mountain Accessories

🌍 Great transmission function.
🌍 Alloy construction leads to lower weight without compromising strength and durability.
🌍 It will be replacement part for the broken one of your
🌍 for 18-speed
🌍 Product Name: Rear Derailleur

Rank No. #2

Bicycle Rear Derailleur, 6/7/Speed Direct Hanger Mount for Mountain Bike, Aluminum Alloy 18/21Speed Speed Rear Derailleur, Bike Repair Accessories

Bike Rear Derailleur with Super Stability: Durable aluminum alloy material and excellent shifting performance ensure safe and stable riding. It is your indispensable bicycle accessories during your cycling journey
Precise Adjustament: High-hardness aluminum alloy body adjustment, adjustment is more precise. Bike Rear Derailleur Direct Mount for Mountain Bike can be adjusted slightly in multiple places to ensure accurate speed change performance.
Quick To Install: Fast and convenient installation and easy maintenance. 6/7 Speed Hanger Mount for Mountain Bicycle. (Note: Two types for different mount style, direct mount or hanger mount. Please check the mount type of the original part before ordering.)
MTB Bike Mountain Bike Direct Mount Rear Derailleur Compatible Model: Speed Rear Derailleur for Road MTB Bike black rear derailleur, compatible with 6/7 speed 18/21 speed, suitable for mountain bikes and road bikes. Accurate gears provide light and stable shift performance,and making riding easy and comfortable.
Wide Application: RD-TZ31A 6/7-Speed Rear Derailleur Road MTB Bike Mountain Bike Direct Mount is easy to use and maintain. Suitable for MTB, mountain bikes, road bikes, folding bicycles and so on. The aluminum alloy material is sturdy and durable, and the speed change performance is stable and sensitive.

Rank No. #3

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

MODEL: RD-TZ31-A bike rear derailleur, Compatible with GS 6 / 7 speed SIS Index Shifting drivetrains.
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.
COMPATIBILITY: Suitable for mountain bikes, road bikes, folding bicycles and so on.

Rank No. #4

RainFlowwer Rear Derailleur RD-TZ31-A 6/7 Speed Hanger Mount Suspension Rear Derailleur for Mountain Bike Kids Bike Commuter Bike

MODEL:RD-TZ31-A hanger mount, bicycle rear derailleur suitable for 6/7 speed rack mounting.
NOTE: The bike rear derailleur is hanger mount, not direct mount .Please check the mount type of the original part before purchasing. If you have any questions, please feel free to contact us, we will provide you with professional services.
PERFORMANCE: Sturdy aluminum alloy material and excellent shifting performance ensure safe and stable riding, and no abrading for chain.
WIDE APPLICATION: Suitable for MTB, mountain bikes, road bikes, folding bicycles, commuter bikes, eletric bikes etc.
Important: We provide excellent customer service, please feel free to contact if you have any questions.

Rank No. #5

Front Bike Derailleurs 3 Speed Clamp On Front Derailleurs Compatible with top or Bottom Routing for Mountain Bike Road Bicycle MTB BMX with Adjust Clamp Size 31.8mm 34.9mm

Fit for 42‑34‑24 teeth three‑piece type crankset, high compatibility bidirectional cable arm, support both up and down trace, Suitable for 6/7/8/9/10/11 or 18/21/24/27/30/33 speed mountain bikes
Mount Type: Clamp On, 34.9 to 31.8 conversion clip ring, supports 31.8/34.9mm diameter tube, universal for most mountain bike
Precision machining ensures smooth operation. The chain moves from one sprocket to another, almost without wear
The derailleur is made of high-quality metal material, which is rust-proof, wear-resistant and durable. Forged aluminum construction lowers weight without sacrificing durability
Suitable for BMX bikes, cruisers, electric bikes, folding bikes, hybrid, mountain bikes, etc.

Last update on 2025-07-05 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

How Do You Buy The Best 18 Speed Derailleurs?

Do you get stressed out thinking about shopping for a great 18 Speed Derailleurs? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching 18 Speed Derailleurs, which is why we have assembled a comprehensive list of the greatest 18 Speed Derailleurs available in the current market. We’ve also come up with a list of questions that you probably have yourself.

Romance University has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for 18 Speed Derailleurs that you consider buying. Your questions might include the following:

Is it worth buying an 18 Speed Derailleurs?
What benefits are there with buying an 18 Speed Derailleurs?
What factors deserve consideration when shopping for an effective 18 Speed Derailleurs?
Why is it crucial to invest in any 18 Speed Derailleurs, much less the best one?
Which 18 Speed Derailleurs are good in the current market?
Where can you find information like this about 18 Speed Derailleurs?

We’re convinced that you likely have far more questions than just these regarding 18 Speed Derailleurs, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for 18 Speed Derailleurs, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible 18 Speed Derailleurs. Make sure that you are only using trustworthy and credible websites and sources.

Romance University provides an 18 Speed Derailleurs buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available 18 Speed Derailleurs currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

Brand Value: Every brand of 18 Speed Derailleurs has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
Features: What bells and whistles matter for an 18 Speed Derailleurs?
Specifications: How powerful they are can be measured.
Product Value: This simply is how much bang for the buck you get from your 18 Speed Derailleurs.
Customer Ratings: Number ratings grade 18 Speed Derailleurs objectively.
Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 18 Speed Derailleurs.
Product Quality: You don’t always get what you pay for with an 18 Speed Derailleurs, sometimes less, and sometimes more.
Product Reliability: How sturdy and durable an 18 Speed Derailleurs is should be an indication of how long it will work out for you.

Romance University always remembers that maintaining 18 Speed Derailleurs information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding 18 Speed Derailleurs is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly! We’re here for you all the time. Contact us here. Or You can read more about us to see our vision.

FAQ:

Q: Where is the derailleur on an 18 speed bike?

A: A derailleur on the back wheel of a bike. 18 speeds is a common drivetrain configuration for modern bicycles, with options for a double chainring paired with a 9-gear cassette or a triple chainring with a 6-gear cassette.

Q: How does a rear derailleur work on a bicycle?

A: The front derailleur picks up the chain and moves it gently between your chainrings, and your rear derailleur uses an arm to maintain tension while it slides the chain up and down the cassette. The rings are different sizes, but the spring in the derailleur arm keeps the chain taut no matter which gears you choose.

Q: How are gears used on an 18 speed bicycle?

A: You can also work to preserve the integrity of your chain by avoiding gear ratios that put the chain under additional stress. Your 18-speed bicycle uses two derailleurs to change between different gear ratios, which allow you to shift into lower gears for climbing and higher gears when you’re moving faster.

Q: Can a SRAM RED rear derailleur be backwards compatible?

A: 10- and 11-speed SRAM road components are inter-compatible – meaning you could run a 10-speed SRAM Red rear derailleur with a pair of SRAM 22 shifters 12-speed SRAM components are not backwards compatible with 11-speed.

18 Speed Derailleurs