13 Best Rear Bike Derailleurs

List Updated November 2020

Bestselling Rear Bike Derailleurs in 2020


SHIMANO Tz31 21 Speed The 7 Speed of Mountain Bike Direct Mount Rear Derailleur

SHIMANO Tz31 21 Speed The 7 Speed of Mountain Bike Direct Mount Rear Derailleur
BESTSELLER NO. 1 in 2020
  • Shimano TZ31
  • 7 speed Direct Mount
  • Rear Derailleur
  • Suitable for mountain bike/road bike use
  • Suitable for Bike frame with hook

Shimano Acera M360 7 and 8-Speed Rear Derailleur with SmartCage, Black

Shimano Acera M360 7 and 8-Speed Rear Derailleur with SmartCage, Black
BESTSELLER NO. 2 in 2020
  • Shimano Acera M360 7
  • 8-Speed Rear Derailleur with SmartCage, Black

Shimano Rd-tz 31 Rear Derailleur 7speed Hub Bolt Mount

Shimano Rd-tz 31 Rear Derailleur 7speed Hub Bolt Mount
BESTSELLER NO. 3 in 2020
  • 7 speed hub bolt mount type
  • Hanger Mount Mountain Bike/road bike
  • Rear Derailleur

Top-bike Shimano Tourney RD-M280 Rear Derailleur 7/8 Speed Mountain Bike Direct Mount

Top-bike Shimano Tourney RD-M280 Rear Derailleur 7/8 Speed Mountain Bike Direct Mount
BESTSELLER NO. 4 in 2020
  • Shimano direct mount rear derailleur, compatible 7 or 8 speed
  • 13T pulleys, double Servo design keeps pulley close to sprockets for better shifting
  • Long cage, really a whole new innovation for your MTB
  • Shifts smoothly, accurate shifting, easy installation
  • 100% Shimano, excellent quality products, warranty: 24-month

Shimano Tourney 7/8-Speed Mountain Bicycle Rear Derailleur - RD-TX800-L (Black)

Shimano Tourney 7/8-Speed Mountain Bicycle Rear Derailleur - RD-TX800-L (Black)
BESTSELLER NO. 5 in 2020
  • TX models come with Smart Cage which gives MegaRange compatibility with a shorter derailleur cage
  • Largest Cog: 34
  • Chain Wrap Capacity: 43
  • Cage Length: Long
  • Drivetrain Speeds: 8

Shimano Tourney Rear Derailleur RD-TY300 6/7 Speed SGS Direct Mount

Shimano Tourney Rear Derailleur RD-TY300 6/7 Speed SGS Direct Mount
BESTSELLER NO. 6 in 2020
  • Shimano rear derailleur, suit 6-7 speed bicycle freewheel
  • Smooth shifting, easy and fast to install, large guide wheel, low noise
  • Long cage tourney derailleur, compatible with 11T high speed gear
  • B tension adjustment screw for simple adjustment
  • 100% Shimano, excellent quality products, superb customers care, warranty: 24-month

Ztto Colorful Bicycle Rear Derailleur Parts Hanger Extender (Black)

Ztto Colorful Bicycle Rear Derailleur Parts Hanger Extender (Black)
BESTSELLER NO. 7 in 2020
  • Colors: Red, Gold, Blue, Black
  • For Shimano Sunrace 11 42 46 Cassette
  • This device will save your old drivetrain
  • Material: aluminum and stainless steel
  • High quality, lightweight and durable in use.

Shimano Tourney TY300 6/7-Speed Rear Derailleur with Dropout Claw Hanger

Shimano Tourney TY300 6/7-Speed Rear Derailleur with Dropout Claw Hanger
BESTSELLER NO. 8 in 2020

Stylrtop 2 pcs Bike 11T Aluminum Sealed Bearing Jockey Wheel Rear Derailleur Pulleys (Red)

Stylrtop 2 pcs Bike 11T Aluminum Sealed Bearing Jockey Wheel Rear Derailleur Pulleys (Red)
BESTSELLER NO. 9 in 2020

SRAM GX Type 2.1 Bicycle Rear Derailleur with 10 Speed Short Cage, Black

SRAM GX Type 2.1 Bicycle Rear Derailleur with 10 Speed Short Cage, Black
BESTSELLER NO. 10 in 2020
  • EXACT ACTUATION for precise and dependable 10-speed performance
  • TYPE 2.1 technologies: ROLLER BEARING CLUTCH and CAGE LOCK (also available without TYPE 2.1 configurations)
  • Cage lengths: Short, Medium and Long

E-FAK Universal Mountain Road Cycling Bike Bicycle Rear Derailleur Guard Rack Protector (BLACK)

E-FAK Universal Mountain Road Cycling Bike Bicycle Rear Derailleur Guard Rack Protector (BLACK)
BESTSELLER NO. 11 in 2020
  • GOOD QUALITY: Strong Steel material for protection and weight up to 100g weight.
  • FANTASTIC FUCTION: Provide effective protection for rear derailleur, prevent the derailleur was struck distorti on or displacement in riding to ensure the safety of the riding.
  • EASY INSTALLATION: Single fixed hole can be easily installed.
  • LARGE RANGE OF USE: Universal size suitable for most mountain bikes, road bikes, folding bicycles, racing bikes.
  • GUARANTEED: 100% Guaranteed to return the goods by free without any reason

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

Shimano RDM310DL Altus GS 7/8-speed Rear Der Black,Long Cage
BESTSELLER NO. 12 in 2020
  • Chain Wrap Capacity: 43teeth, Derailleur Action: Top-Normal (Traditional)
  • Derailleur Color: black, Drivetrain Spacing: Shimano/SRAM 8, Largest Cog: 34teeth
  • Shifter/Rear Derailleur : Shimano, Speeds: 8sp, Weight: 326g

VGEBY 7/21 Speed Mountain Bike Transmission Rear Derailleur

VGEBY 7/21 Speed Mountain Bike Transmission Rear Derailleur
BESTSELLER NO. 13 in 2020
  • Made of high quality metal material, it is durable and sturdy
  • The transmission for mountain bike 7 speed, 21 speed
  • Unique guide wheel screw, easy to operate the speed performance
  • Size: 14*7*6cm
  • GUARANTEE: If you have any problem with this product, you can just take advantage of our 180 days warranty. We will replace it or give your money back for any reason

Road Bikes: Hitting the Road 2020

The best and latest craze in road bikes is a carbon frame, but that is changing again. Some designers are blending aluminum and carbon to provide a balanced ride with greater durability. Read on for current road bike choices.

Ultegra CP Road Bike

The Ultegra CP blends the Izalco Pro carbon frame and Shimano Ultegra components. The composite fork adds to the stability of the bike. It is priced at $1,999, but the durability, stability, and class of the bike indicate an item that may just outlast the rider. Bicycling Editors selected this bike as the winner in the Choice Award 2020 category of "Best Enthusiast Road Bike."

Giant Defy Advanced 3

Giant Defy Advanced 3 starts about $2,075. The carbon frame and fork match to a Shimano 105 drivetrain. Carbon guarantees its swiftness; riders claim it is comfortable. Some of this has to do with the frame, blessed for its road vibration absorption, which saves the rider's system. Ray Wallack from the Los Angeles Times praises the Giant Defy's versatility, stating that upright positioning increases its ability for climbing hills, short or long distance treks. The seat has drawn some complaints, but that can be changed quickly to better fit any rider.

Trek Madone 5.2

A trendy road bike, the Trek Madone 5.2 road bike comes in women's and men's sizes. This is ideal for the couple who like to match in other aspects of their life, and enjoy the His and Hers theme. It starts at $3,880. Another carbon-framed bike, it has the Shimano Ultegra component group, Bontrager Race Lite wheels and a Bontrager Race X Lite fork. Riders enjoy the maneuverability of the bike, although some have complained about the continual adjustments.

Cannondale CAAD9 1

The Cannondale CAAD9 1 runs about $2,800, and boasts an aluminum frame with a full-carbon fork. Creativity with the best attributes leads to shifters, derailleurs, and rims come from Shimano, brakes from Tektro, and tires from Schwalbe Ultremo. Available in eight frame sizes, the steering is great for any choice. Sales exceeded expectations for the CAAD9, resulting in a lighter CAAD10 being released.

2020 Fuji Roubaix 2.0

The 2020 Fuji Roubaix 2.0 Road Bike has a sporty look. Featuring an Altair 2 aluminum frame with a carbon integrated fork, it is slightly heavier than the other bikes on this list. Steering is comparable. Shimano Tiagra derailleurs and nine speeds create an easy ride. Dual pivot brakes make controlling speed better.

An excellent road bike for the determined rider is a priceless gift.

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