Best Mountain Bike Derailleurs

Rear derailleur is something I’d never thought I’d say outloud.  However, if you’ve been moutain biking for any length of time you’ve probably had to adjust the mountain bike derailleurs.   What’s a derailleur you might ask!   It’s a fancy sounding name for the thing that adjusts the it’s position to keep the tension on the chain as you change gears.   If you’re bike cost under $1,000 you probably need to upgrade that mountian bike derailler.   Just like our review of chain tensioners, you’ll find that there are a plethora of choices when you want to select the best mountain bike derailleur.  You can purchase a decent bike frame from a local store and then upgrade the parts and have a pretty solid mountain bike.

Best Mountain Bike Derailleurs

SaleBestseller No. 1
Shimano Bike Rear Derailleur RD-TZ31-A 6/7 Speed Direct Mount Rear Derailleur for Mountain Bike Tricycle Commuter Bike Folding Bike
  • Model: RD-TZ31-A; Bike rear derailleur, compatible with 6/7 speed mountain bikes, commuter bike, tricycle, folding bike etc.
  • Note: The bike rear derailleur is direct mount, not hub bolt mount. Please choose right mount way before you purchase.
  • Stability: Made of high quality durable aluminum alloy material and come with excellent shifting performance ensure your safe and stable while riding.
  • Application: Suitable for MTB, mountain bikes, road bikes, folding bicycles, commuter bikes, tricycles, eletric bikes etc.
  • Important: We provide excellent customer service, please feel free to contact if you have any questions.
SaleBestseller No. 2
Inkesky RD-TZ31-GS 6/7 Speed Rear Derailleur with Direct Mount, Medium Cage, for Mountain Bike
  • [IMPORTANT] It's Direct Mount Rear Derailleur for Mountain Bike, not Hanger mount
Bestseller No. 3
Shimano RDM310DL Altus GS 7/8-speed Rear Der Black,Long Cage
  • 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
Bestseller No. 4
MEGHNA Shimano Tourney RD-TY300 6/7-Speed Rear Derailleur for Hybrid Bike MTB Mountain Bike Folding Bike Direct Mount
  • Model: RD-TY300-SGS; Bike Rear Derailleur 6/7 Speed for most kinds of bikes like mountain bike, hybrid bike, kids bike, cruiser bike and so on.
  • Features: Smooth shifting, easy and fast to install. Bracket fit (under wheel nut) Long cage tourney derailleur, total capacity 43T, pulley/Teeth 13/13T. Low sprocket: Max. 34T; Low sprocket: Min. 28T; Top sprocket: Max. 14T; Top sprocket: Min. 11T.
  • Stability: Made of high quality durable aluminum alloy material and come with excellent shifting performance ensure your safe and stable while riding.
  • Application: Compatible with 6 and 7-speed SIS INDEX variable speed transmission systems. Suitable for MTB, mountain bikes, road bikes, folding bicycles, commuter bikes, tricycles, eletric bikes etc.
  • Long cage tourney derailleur, compatible with 11T /14T high speed gear.
Bestseller No. 5
ZUKKA Shimano Rear Derailleur RD-TZ31-A 6/7 Speed Hanger Mount for MTB Mountain Road Bike
  • MODEL: RD-TZ31-A bike rear derailleur, Compatible with 6 and 7-speed SIS Index Shifting drivetrains.
  • IMPORTANT: The bike rear derailleur is hanger mount (hub bolt mount), not direct mount.
  • EXCELLENT PERFORMANCE: Accurate gears provide light and stable shift performance, and making riding easy and comfortable.
  • MATERIAL: Made of high-quality steel materials,durable and long service life. Easy to install and disassemble.
  • APPLICATION: Suitable for MTB mountain bike, road bikes, variable speed bicycle, folding and city bikes. It is your indispensable bicycle accessories during your cycling journey.
Bestseller No. 6
Elite Srl 2021 Suito Pack Direct Drive Home Bike Trainer, Black, One Size
  • Features: Powerful, solid, and quiet, Suito is an interactive home trainer designed to offer you an easy, realistic, and accurate indoor bike training experience
  • Plug and Play: Among Elite's interactive home trainers range, Suito is innovative as it features a practical Plug&Play configuration, designed to let you experience right away a quick and easy indoor bike training session
  • Exclusive Design: The sturdy steel structure is another distinctive feature of this home trainer - it's ideal to ensure stability and durability even during the most intense sprints. Elegant and aggressive, solid and powerful - Suito features a wider support base with pre-assembled legs, designed to automatically lock in place when unfolded
  • Precise and Powerful: Suito simulates slopes up to 15% with ±2,5% accuracy. These numbers put it squarely among our most performing interactive home trainers. With more than 1900 watts resistance at 40 km/h speed, Suito is one of the most powerful home trainers available, the ideal tool to release all your strength even the most demanding sprints
  • Train on Zwift and My E-Training: Through the cooperation between Elite and Zwift, everyone purchasing the Suito will enjoy a free 1-month subscription to Zwift and a free 12-month subscription to My E-Training, available on desktop and mobile. This is another home trainer that's in the range of ANT+ FE-C and Bluetooth interactive home trainers that interact with every app, software, computer, and device (smartphones and tablets) via iOS, Android, macOS, and Windows
SaleBestseller No. 7
Shimano Acera M360 7 and 8-Speed Rear Derailleur with SmartCage, Black
  • Shimano Acera M360 7
  • 8-Speed Rear Derailleur with SmartCage, Black
Bestseller No. 8
Shimano Rear Derailleur, RD-TX800, 7/8 SPD, Direct Attach, Bla
  • Rear Derailleur (3x8-speed)
  • 8-speed drive train
  • Durable light action shifting peformance for stress free riding. Double Servo-panta Mechanism
  • Quick assembly. Allen key type inner cable fixing bolt
  • Total capacity 43T
Bestseller No. 9
Hycline Bike Rear Derailleur RD-TY21B 6/7 Speed Hanger Mount for Mountain Bicycle-Black
  • MODEL: RD-TY21B Black Rear Derailleur,Suitable for 6/7speed.
  • PERFORMANCE:Forged with high hardness aluminum alloy.The hollow weight-reduction design is adopted,and the speed change is more stable.
  • 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.
  • INSTALLATION:Fast and convenient installation and easy maintenance.(Note:The bike rear derailleur is hub bolt mount,not direct mount .Please check the mount type of the original part before ordering.)
  • SCOPE OF APPLICATION:Suitable for mountain bikes, station wagons, folding bikes, etc.If you have any questions,please feel free to contact us.We will provide timely response and quality service.
Bestseller No. 10
Mountain Bike Replacement Parts,RD-M390 Bicycle Derailleurs,7 8 9 Speed Rear Bike Derailleurs
  • RD-M390 Bicycle Derailleurs.
  • Simple installation.
  • Material: aluminum alloy.
  • Weight: 360g.
  • Size: 5.7*3.3*4.1inch.

Bestselling Mountain Bike Rear Derailleurs

SaleBestseller No. 1
Shimano Bike Rear Derailleur RD-TZ31-A 6/7 Speed Direct Mount Rear Derailleur for Mountain Bike Tricycle Commuter Bike Folding Bike
  • Model: RD-TZ31-A; Bike rear derailleur, compatible with 6/7 speed mountain bikes, commuter bike, tricycle, folding bike etc.
  • Note: The bike rear derailleur is direct mount, not hub bolt mount. Please choose right mount way before you purchase.
  • Stability: Made of high quality durable aluminum alloy material and come with excellent shifting performance ensure your safe and stable while riding.
  • Application: Suitable for MTB, mountain bikes, road bikes, folding bicycles, commuter bikes, tricycles, eletric bikes etc.
  • Important: We provide excellent customer service, please feel free to contact if you have any questions.
SaleBestseller No. 2
Inkesky RD-TZ31-GS 6/7 Speed Rear Derailleur with Direct Mount, Medium Cage, for Mountain Bike
  • [IMPORTANT] It's Direct Mount Rear Derailleur for Mountain Bike, not Hanger mount
Bestseller No. 3
Shimano RDM310DL Altus GS 7/8-speed Rear Der Black,Long Cage
  • 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
Bestseller No. 4
MEGHNA Shimano Tourney RD-TY300 6/7-Speed Rear Derailleur for Hybrid Bike MTB Mountain Bike Folding Bike Direct Mount
  • Model: RD-TY300-SGS; Bike Rear Derailleur 6/7 Speed for most kinds of bikes like mountain bike, hybrid bike, kids bike, cruiser bike and so on.
  • Features: Smooth shifting, easy and fast to install. Bracket fit (under wheel nut) Long cage tourney derailleur, total capacity 43T, pulley/Teeth 13/13T. Low sprocket: Max. 34T; Low sprocket: Min. 28T; Top sprocket: Max. 14T; Top sprocket: Min. 11T.
  • Stability: Made of high quality durable aluminum alloy material and come with excellent shifting performance ensure your safe and stable while riding.
  • Application: Compatible with 6 and 7-speed SIS INDEX variable speed transmission systems. Suitable for MTB, mountain bikes, road bikes, folding bicycles, commuter bikes, tricycles, eletric bikes etc.
  • Long cage tourney derailleur, compatible with 11T /14T high speed gear.
Bestseller No. 5
ZUKKA Shimano Rear Derailleur RD-TZ31-A 6/7 Speed Hanger Mount for MTB Mountain Road Bike
  • MODEL: RD-TZ31-A bike rear derailleur, Compatible with 6 and 7-speed SIS Index Shifting drivetrains.
  • IMPORTANT: The bike rear derailleur is hanger mount (hub bolt mount), not direct mount.
  • EXCELLENT PERFORMANCE: Accurate gears provide light and stable shift performance, and making riding easy and comfortable.
  • MATERIAL: Made of high-quality steel materials,durable and long service life. Easy to install and disassemble.
  • APPLICATION: Suitable for MTB mountain bike, road bikes, variable speed bicycle, folding and city bikes. It is your indispensable bicycle accessories during your cycling journey.
SaleBestseller No. 6
Shimano Acera M360 7 and 8-Speed Rear Derailleur with SmartCage, Black
  • Shimano Acera M360 7
  • 8-Speed Rear Derailleur with SmartCage, Black
Bestseller No. 7
Shimano Rear Derailleur, RD-TX800, 7/8 SPD, Direct Attach, Bla
  • Rear Derailleur (3x8-speed)
  • 8-speed drive train
  • Durable light action shifting peformance for stress free riding. Double Servo-panta Mechanism
  • Quick assembly. Allen key type inner cable fixing bolt
  • Total capacity 43T
Bestseller No. 8
Hycline Bike Rear Derailleur RD-TY21B 6/7 Speed Hanger Mount for Mountain Bicycle-Black
  • MODEL: RD-TY21B Black Rear Derailleur,Suitable for 6/7speed.
  • PERFORMANCE:Forged with high hardness aluminum alloy.The hollow weight-reduction design is adopted,and the speed change is more stable.
  • 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.
  • INSTALLATION:Fast and convenient installation and easy maintenance.(Note:The bike rear derailleur is hub bolt mount,not direct mount .Please check the mount type of the original part before ordering.)
  • SCOPE OF APPLICATION:Suitable for mountain bikes, station wagons, folding bikes, etc.If you have any questions,please feel free to contact us.We will provide timely response and quality service.
Bestseller No. 9
Mountain Bike Replacement Parts,RD-M390 Bicycle Derailleurs,7 8 9 Speed Rear Bike Derailleurs
  • RD-M390 Bicycle Derailleurs.
  • Simple installation.
  • Material: aluminum alloy.
  • Weight: 360g.
  • Size: 5.7*3.3*4.1inch.

Top Shimano Mountain Bike Derailleurs

SaleBestseller No. 1
Shimano Bike Rear Derailleur RD-TZ31-A 6/7 Speed Direct Mount Rear Derailleur for Mountain Bike Tricycle Commuter Bike Folding Bike
  • Model: RD-TZ31-A; Bike rear derailleur, compatible with 6/7 speed mountain bikes, commuter bike, tricycle, folding bike etc.
  • Note: The bike rear derailleur is direct mount, not hub bolt mount. Please choose right mount way before you purchase.
  • Stability: Made of high quality durable aluminum alloy material and come with excellent shifting performance ensure your safe and stable while riding.
  • Application: Suitable for MTB, mountain bikes, road bikes, folding bicycles, commuter bikes, tricycles, eletric bikes etc.
  • Important: We provide excellent customer service, please feel free to contact if you have any questions.
Bestseller No. 2
Shimano RDM310DL Altus GS 7/8-speed Rear Der Black,Long Cage
  • 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
Bestseller No. 3
MEGHNA Shimano Tourney RD-TY300 6/7-Speed Rear Derailleur for Hybrid Bike MTB Mountain Bike Folding Bike Direct Mount
  • Model: RD-TY300-SGS; Bike Rear Derailleur 6/7 Speed for most kinds of bikes like mountain bike, hybrid bike, kids bike, cruiser bike and so on.
  • Features: Smooth shifting, easy and fast to install. Bracket fit (under wheel nut) Long cage tourney derailleur, total capacity 43T, pulley/Teeth 13/13T. Low sprocket: Max. 34T; Low sprocket: Min. 28T; Top sprocket: Max. 14T; Top sprocket: Min. 11T.
  • Stability: Made of high quality durable aluminum alloy material and come with excellent shifting performance ensure your safe and stable while riding.
  • Application: Compatible with 6 and 7-speed SIS INDEX variable speed transmission systems. Suitable for MTB, mountain bikes, road bikes, folding bicycles, commuter bikes, tricycles, eletric bikes etc.
  • Long cage tourney derailleur, compatible with 11T /14T high speed gear.
Bestseller No. 4
ZUKKA Shimano Rear Derailleur RD-TZ31-A 6/7 Speed Hanger Mount for MTB Mountain Road Bike
  • MODEL: RD-TZ31-A bike rear derailleur, Compatible with 6 and 7-speed SIS Index Shifting drivetrains.
  • IMPORTANT: The bike rear derailleur is hanger mount (hub bolt mount), not direct mount.
  • EXCELLENT PERFORMANCE: Accurate gears provide light and stable shift performance, and making riding easy and comfortable.
  • MATERIAL: Made of high-quality steel materials,durable and long service life. Easy to install and disassemble.
  • APPLICATION: Suitable for MTB mountain bike, road bikes, variable speed bicycle, folding and city bikes. It is your indispensable bicycle accessories during your cycling journey.
SaleBestseller No. 5
Shimano Acera M360 7 and 8-Speed Rear Derailleur with SmartCage, Black
  • Shimano Acera M360 7
  • 8-Speed Rear Derailleur with SmartCage, Black

 

How To Set Up A Mountain Bike Derailleur

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