Best Bike Derailleurs. Reviews September, 2020

SRAM Unisex's Rear Derailleur Nx Eagle 12 Speed Black

Search only SRAM brand name
SRAM Unisex's Rear Derailleur Nx Eagle 12 Speed Black

Current price: 107 USD


Check price and availability


Height: 4 Inches

Length: 9 Inches

Width: 9 Inches

Weight: 1.10231131 Pounds

  • Achieve the ultimate ride
  • Performance that is simply second to none
  • Revolutionary innovation

More Info

SHIMANO Unisex's FDM313X6 Bike Parts, Other, One Size

Search only SHIMANO brand name
SHIMANO Unisex's FDM313X6 Bike Parts, Other, One Size

Current price: 19.26 USD


Check price and availability


Height: 3.75 Inches

Length: 6.5 Inches

Width: 4.25 Inches

Weight: 0.6503636729 Pounds

  • Achieve the ultimate ride
  • Performance that is simply second to none
  • Revolutionary innovation
  • Shimano fd-m310 Altus 8-Speed front derailleur, conventional swing, 42-48t, 66-69 degree

More Info

Stylrtop Bike Bicycle Rear Derailleur Guard Rack Protector

Search only Stylrtop brand name
Stylrtop Bike Bicycle Rear Derailleur Guard Rack Protector

Current price: 9.89 USD


Check price and availability


  • Achieve the ultimate ride
  • Performance that is simply second to none
  • Revolutionary innovation
  • Shimano fd-m310 Altus 8-Speed front derailleur, conventional swing, 42-48t, 66-69 degree
  • The Bicycle Rear Derailleur Protector is built to last.We stand behind our product and provide lifetime warranty.If you do not like it just return and we will full refund for you.no question ask.
  • Made of strong steel,very durable,suitable for most mountain bikes, road bikes, folding bicycles, racing bikes
  • Easy to installed:Just be fixed in the corresponding hole position;
  • Size:115 X 54 X40 mm
  • Application:Provide effective protection for rear derailleur, prevent the derailleur was struck distorti on or displacement in riding;

More Info

Aturmon Carbon Steel Bike Bicycle Rear Derailleur Chain Stay Guard Gear Protector Adjustable Cycling Rear Derailleur Protector for Outdoor Mountain Road Cycling Bike

Search only Aturmon brand name
Aturmon Carbon Steel Bike Bicycle Rear Derailleur Chain Stay Guard Gear Protector Adjustable Cycling Rear Derailleur Protector for Outdoor Mountain Road Cycling Bike

Current price: 7.99 USD


Check price and availability


  • Achieve the ultimate ride
  • Performance that is simply second to none
  • Revolutionary innovation
  • Shimano fd-m310 Altus 8-Speed front derailleur, conventional swing, 42-48t, 66-69 degree
  • The Bicycle Rear Derailleur Protector is built to last.We stand behind our product and provide lifetime warranty.If you do not like it just return and we will full refund for you.no question ask.
  • Made of strong steel,very durable,suitable for most mountain bikes, road bikes, folding bicycles, racing bikes
  • Easy to installed:Just be fixed in the corresponding hole position;
  • Size:115 X 54 X40 mm
  • Application:Provide effective protection for rear derailleur, prevent the derailleur was struck distorti on or displacement in riding;
  • UNIVERSAL SIZE:The shape conforms to most mountain bike, road bikes, folding bikes,provides effective protection for the rear derailleur, prevent derailment.
  • A great investment!The Rear Derailleur Guard fits right on the axel bolt. Works great. You can put them on all the bikes after 2 of kids bikes received smashed derailleurs on the trail ride.
  • The Rear Derailleur Guard is heavy-heavy and really protects the rear shifting mechanism.The guard appears to be made of a strong steel that will definitely reduce any potential damage in the event of accidents.this item is meant to fit onto the wheel axle, and not on the Derailleur nut.
  • The Rear Derailleur Guard is very easy to install and will actually protect the Derailleur in the event of a drop.It is Great for the kids bikes like mountain bike or MTB .Made of strong steel,very durable,suitable for most mountain bikes, road bikes, folding bicycles, racing bikes
  • The Rear Derailleur Guard is certainly worth purchasing if your derailleur is unprotected. It Provides effective protection for rear derailleur, prevent the derailleur was struck distorti on or displacement in riding

More Info

LINUGR Rear Derailleur RD-TZ31-A 6/7 Speed Direct Mount/Hanger Mount for Mountain Bike

Search only brand name
LINUGR Rear Derailleur RD-TZ31-A 6/7 Speed Direct Mount/Hanger Mount for Mountain Bike

Current price: 23.99 USD


Check price and availability


  • Achieve the ultimate ride
  • Performance that is simply second to none
  • Revolutionary innovation
  • Shimano fd-m310 Altus 8-Speed front derailleur, conventional swing, 42-48t, 66-69 degree
  • The Bicycle Rear Derailleur Protector is built to last.We stand behind our product and provide lifetime warranty.If you do not like it just return and we will full refund for you.no question ask.
  • Made of strong steel,very durable,suitable for most mountain bikes, road bikes, folding bicycles, racing bikes
  • Easy to installed:Just be fixed in the corresponding hole position;
  • Size:115 X 54 X40 mm
  • Application:Provide effective protection for rear derailleur, prevent the derailleur was struck distorti on or displacement in riding;
  • UNIVERSAL SIZE:The shape conforms to most mountain bike, road bikes, folding bikes,provides effective protection for the rear derailleur, prevent derailment.
  • A great investment!The Rear Derailleur Guard fits right on the axel bolt. Works great. You can put them on all the bikes after 2 of kids bikes received smashed derailleurs on the trail ride.
  • The Rear Derailleur Guard is heavy-heavy and really protects the rear shifting mechanism.The guard appears to be made of a strong steel that will definitely reduce any potential damage in the event of accidents.this item is meant to fit onto the wheel axle, and not on the Derailleur nut.
  • The Rear Derailleur Guard is very easy to install and will actually protect the Derailleur in the event of a drop.It is Great for the kids bikes like mountain bike or MTB .Made of strong steel,very durable,suitable for most mountain bikes, road bikes, folding bicycles, racing bikes
  • The Rear Derailleur Guard is certainly worth purchasing if your derailleur is unprotected. It Provides effective protection for rear derailleur, prevent the derailleur was struck distorti on or displacement in riding
  • [note] this is a direct mount rear transmission for a mountain bike, not a suspended one.

More Info

Inkesky Rear Derailleur RD-TZ31-A 6/7 Speed Direct Mount/Hanger Mount for Mountain Bike

Search only Inkesky brand name
Inkesky Rear Derailleur RD-TZ31-A 6/7 Speed Direct Mount/Hanger Mount for Mountain Bike

Current price: 25.95 USD

Saving: $3.04 (10%)


Check price and availability


  • Achieve the ultimate ride
  • Performance that is simply second to none
  • Revolutionary innovation
  • Shimano fd-m310 Altus 8-Speed front derailleur, conventional swing, 42-48t, 66-69 degree
  • The Bicycle Rear Derailleur Protector is built to last.We stand behind our product and provide lifetime warranty.If you do not like it just return and we will full refund for you.no question ask.
  • Made of strong steel,very durable,suitable for most mountain bikes, road bikes, folding bicycles, racing bikes
  • Easy to installed:Just be fixed in the corresponding hole position;
  • Size:115 X 54 X40 mm
  • Application:Provide effective protection for rear derailleur, prevent the derailleur was struck distorti on or displacement in riding;
  • UNIVERSAL SIZE:The shape conforms to most mountain bike, road bikes, folding bikes,provides effective protection for the rear derailleur, prevent derailment.
  • A great investment!The Rear Derailleur Guard fits right on the axel bolt. Works great. You can put them on all the bikes after 2 of kids bikes received smashed derailleurs on the trail ride.
  • The Rear Derailleur Guard is heavy-heavy and really protects the rear shifting mechanism.The guard appears to be made of a strong steel that will definitely reduce any potential damage in the event of accidents.this item is meant to fit onto the wheel axle, and not on the Derailleur nut.
  • The Rear Derailleur Guard is very easy to install and will actually protect the Derailleur in the event of a drop.It is Great for the kids bikes like mountain bike or MTB .Made of strong steel,very durable,suitable for most mountain bikes, road bikes, folding bicycles, racing bikes
  • The Rear Derailleur Guard is certainly worth purchasing if your derailleur is unprotected. It Provides effective protection for rear derailleur, prevent the derailleur was struck distorti on or displacement in riding
  • [note] this is a direct mount rear transmission for a mountain bike, not a suspended one.
  • [IMPORTANT] It's Direct Mount Rear Derailleur for Mountain Bike, not Hanger mount

More Info

LINUGR Rear Derailleur RD-TZ31-A 6/7 Speed Hub Bolt Mount (Hanger Mount) for Mountain Bike

Search only brand name
LINUGR Rear Derailleur RD-TZ31-A 6/7 Speed Hub Bolt Mount (Hanger Mount) for Mountain Bike

Current price: 23.99 USD


Check price and availability


  • Achieve the ultimate ride
  • Performance that is simply second to none
  • Revolutionary innovation
  • Shimano fd-m310 Altus 8-Speed front derailleur, conventional swing, 42-48t, 66-69 degree
  • The Bicycle Rear Derailleur Protector is built to last.We stand behind our product and provide lifetime warranty.If you do not like it just return and we will full refund for you.no question ask.
  • Made of strong steel,very durable,suitable for most mountain bikes, road bikes, folding bicycles, racing bikes
  • Easy to installed:Just be fixed in the corresponding hole position;
  • Size:115 X 54 X40 mm
  • Application:Provide effective protection for rear derailleur, prevent the derailleur was struck distorti on or displacement in riding;
  • UNIVERSAL SIZE:The shape conforms to most mountain bike, road bikes, folding bikes,provides effective protection for the rear derailleur, prevent derailment.
  • A great investment!The Rear Derailleur Guard fits right on the axel bolt. Works great. You can put them on all the bikes after 2 of kids bikes received smashed derailleurs on the trail ride.
  • The Rear Derailleur Guard is heavy-heavy and really protects the rear shifting mechanism.The guard appears to be made of a strong steel that will definitely reduce any potential damage in the event of accidents.this item is meant to fit onto the wheel axle, and not on the Derailleur nut.
  • The Rear Derailleur Guard is very easy to install and will actually protect the Derailleur in the event of a drop.It is Great for the kids bikes like mountain bike or MTB .Made of strong steel,very durable,suitable for most mountain bikes, road bikes, folding bicycles, racing bikes
  • The Rear Derailleur Guard is certainly worth purchasing if your derailleur is unprotected. It Provides effective protection for rear derailleur, prevent the derailleur was struck distorti on or displacement in riding
  • [note] this is a direct mount rear transmission for a mountain bike, not a suspended one.
  • [IMPORTANT] It's Direct Mount Rear Derailleur for Mountain Bike, not Hanger mount
  • GURANTEE:Suitable for mountain bikes,folding bicycles, commuter bikes.If you have any questions, please contact us, we will provide you with the best solution
  • Applicable Occasion: Compatible with 6/18 Speed 7/21 Speed, suitable for mountain bikes and road bikes.
  • Premium Quality:Accurate gears provide light and stable shift performance,and making riding easy.
  • Easy to Install: Adopt ergonomic design, with simple design, easy to install and remove, convenient to use.
  • MODEL:RD-TZ31-A bike rear derailleur.This is a mountain bike derailleur, which is basically suitable for mountain bike, and can adjust the speed of 6 / 7.

More Info

LQKYWNA TZ50 6/7 Speed Mountain Bike Rear Derailleur Direct Mount MTB Transmission

Search only LQKYWNA brand name
LQKYWNA TZ50 6/7 Speed Mountain Bike Rear Derailleur Direct Mount MTB Transmission

Current price: 19.99 USD


Check price and availability


  • Achieve the ultimate ride
  • Performance that is simply second to none
  • Revolutionary innovation
  • Shimano fd-m310 Altus 8-Speed front derailleur, conventional swing, 42-48t, 66-69 degree
  • The Bicycle Rear Derailleur Protector is built to last.We stand behind our product and provide lifetime warranty.If you do not like it just return and we will full refund for you.no question ask.
  • Made of strong steel,very durable,suitable for most mountain bikes, road bikes, folding bicycles, racing bikes
  • Easy to installed:Just be fixed in the corresponding hole position;
  • Size:115 X 54 X40 mm
  • Application:Provide effective protection for rear derailleur, prevent the derailleur was struck distorti on or displacement in riding;
  • UNIVERSAL SIZE:The shape conforms to most mountain bike, road bikes, folding bikes,provides effective protection for the rear derailleur, prevent derailment.
  • A great investment!The Rear Derailleur Guard fits right on the axel bolt. Works great. You can put them on all the bikes after 2 of kids bikes received smashed derailleurs on the trail ride.
  • The Rear Derailleur Guard is heavy-heavy and really protects the rear shifting mechanism.The guard appears to be made of a strong steel that will definitely reduce any potential damage in the event of accidents.this item is meant to fit onto the wheel axle, and not on the Derailleur nut.
  • The Rear Derailleur Guard is very easy to install and will actually protect the Derailleur in the event of a drop.It is Great for the kids bikes like mountain bike or MTB .Made of strong steel,very durable,suitable for most mountain bikes, road bikes, folding bicycles, racing bikes
  • The Rear Derailleur Guard is certainly worth purchasing if your derailleur is unprotected. It Provides effective protection for rear derailleur, prevent the derailleur was struck distorti on or displacement in riding
  • [note] this is a direct mount rear transmission for a mountain bike, not a suspended one.
  • [IMPORTANT] It's Direct Mount Rear Derailleur for Mountain Bike, not Hanger mount
  • GURANTEE:Suitable for mountain bikes,folding bicycles, commuter bikes.If you have any questions, please contact us, we will provide you with the best solution
  • Applicable Occasion: Compatible with 6/18 Speed 7/21 Speed, suitable for mountain bikes and road bikes.
  • Premium Quality:Accurate gears provide light and stable shift performance,and making riding easy.
  • Easy to Install: Adopt ergonomic design, with simple design, easy to install and remove, convenient to use.
  • MODEL:RD-TZ31-A bike rear derailleur.This is a mountain bike derailleur, which is basically suitable for mountain bike, and can adjust the speed of 6 / 7.
  • 🚲The rear dial is made of high quality metal material and is durable.
  • 🚲The rear armor uses an oversized roller to extend the life and reduce noise.
  • 🚲This rear dial is suitable for mountain bikes, road bikes, and variable speed bicycles.
  • 🚲Professional looks and performance, SGS cage can handle wide range gearing and 34 tooth sprockets.
  • 🚲Black rear mech derailleur, suitable for hanging gear 6-7 gear.

More Info

JUST N1 RD TX35 5/6 /7/8 Speed Mountain Bicycle Rear Derailleur,Rear Derailleur,RD-M390 Transmission-Black

Search only JUST N1 brand name
JUST N1 RD TX35 5/6 /7/8 Speed Mountain Bicycle Rear Derailleur,Rear Derailleur,RD-M390 Transmission-Black

Current price: 18.99 USD


Check price and availability


  • Achieve the ultimate ride
  • Performance that is simply second to none
  • Revolutionary innovation
  • Shimano fd-m310 Altus 8-Speed front derailleur, conventional swing, 42-48t, 66-69 degree
  • The Bicycle Rear Derailleur Protector is built to last.We stand behind our product and provide lifetime warranty.If you do not like it just return and we will full refund for you.no question ask.
  • Made of strong steel,very durable,suitable for most mountain bikes, road bikes, folding bicycles, racing bikes
  • Easy to installed:Just be fixed in the corresponding hole position;
  • Size:115 X 54 X40 mm
  • Application:Provide effective protection for rear derailleur, prevent the derailleur was struck distorti on or displacement in riding;
  • UNIVERSAL SIZE:The shape conforms to most mountain bike, road bikes, folding bikes,provides effective protection for the rear derailleur, prevent derailment.
  • A great investment!The Rear Derailleur Guard fits right on the axel bolt. Works great. You can put them on all the bikes after 2 of kids bikes received smashed derailleurs on the trail ride.
  • The Rear Derailleur Guard is heavy-heavy and really protects the rear shifting mechanism.The guard appears to be made of a strong steel that will definitely reduce any potential damage in the event of accidents.this item is meant to fit onto the wheel axle, and not on the Derailleur nut.
  • The Rear Derailleur Guard is very easy to install and will actually protect the Derailleur in the event of a drop.It is Great for the kids bikes like mountain bike or MTB .Made of strong steel,very durable,suitable for most mountain bikes, road bikes, folding bicycles, racing bikes
  • The Rear Derailleur Guard is certainly worth purchasing if your derailleur is unprotected. It Provides effective protection for rear derailleur, prevent the derailleur was struck distorti on or displacement in riding
  • [note] this is a direct mount rear transmission for a mountain bike, not a suspended one.
  • [IMPORTANT] It's Direct Mount Rear Derailleur for Mountain Bike, not Hanger mount
  • GURANTEE:Suitable for mountain bikes,folding bicycles, commuter bikes.If you have any questions, please contact us, we will provide you with the best solution
  • Applicable Occasion: Compatible with 6/18 Speed 7/21 Speed, suitable for mountain bikes and road bikes.
  • Premium Quality:Accurate gears provide light and stable shift performance,and making riding easy.
  • Easy to Install: Adopt ergonomic design, with simple design, easy to install and remove, convenient to use.
  • MODEL:RD-TZ31-A bike rear derailleur.This is a mountain bike derailleur, which is basically suitable for mountain bike, and can adjust the speed of 6 / 7.
  • 🚲The rear dial is made of high quality metal material and is durable.
  • 🚲The rear armor uses an oversized roller to extend the life and reduce noise.
  • 🚲This rear dial is suitable for mountain bikes, road bikes, and variable speed bicycles.
  • 🚲Professional looks and performance, SGS cage can handle wide range gearing and 34 tooth sprockets.
  • 🚲Black rear mech derailleur, suitable for hanging gear 6-7 gear.
  • Excellent quality products, superb customers care, warranty: 12-month
  • B tension adjustment screw for simple adjustment
  • Long cage tourney derailleur, compatible with 11T high speed gear
  • Smooth shifting, easy and fast to install, large guide wheel, low noise
  • Rear derailleur, 7 speed positioning rear shifting chain (7-speed Zui Jia, 8-speed compatible)

More Info

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

Search only SHIMANO brand name
Shimano RDM310DL Altus GS 7/8-speed Rear Der Black,Long Cage

Current price: 23.27 USD

Saving: $2.71 (10%)


Check price and availability


Height: 4.724409444 Inches

Length: 6.299212592 Inches

Width: 6.299212592 Inches

Weight: 0.11 Pounds

  • Achieve the ultimate ride
  • Performance that is simply second to none
  • Revolutionary innovation
  • Shimano fd-m310 Altus 8-Speed front derailleur, conventional swing, 42-48t, 66-69 degree
  • The Bicycle Rear Derailleur Protector is built to last.We stand behind our product and provide lifetime warranty.If you do not like it just return and we will full refund for you.no question ask.
  • Made of strong steel,very durable,suitable for most mountain bikes, road bikes, folding bicycles, racing bikes
  • Easy to installed:Just be fixed in the corresponding hole position;
  • Size:115 X 54 X40 mm
  • Application:Provide effective protection for rear derailleur, prevent the derailleur was struck distorti on or displacement in riding;
  • UNIVERSAL SIZE:The shape conforms to most mountain bike, road bikes, folding bikes,provides effective protection for the rear derailleur, prevent derailment.
  • A great investment!The Rear Derailleur Guard fits right on the axel bolt. Works great. You can put them on all the bikes after 2 of kids bikes received smashed derailleurs on the trail ride.
  • The Rear Derailleur Guard is heavy-heavy and really protects the rear shifting mechanism.The guard appears to be made of a strong steel that will definitely reduce any potential damage in the event of accidents.this item is meant to fit onto the wheel axle, and not on the Derailleur nut.
  • The Rear Derailleur Guard is very easy to install and will actually protect the Derailleur in the event of a drop.It is Great for the kids bikes like mountain bike or MTB .Made of strong steel,very durable,suitable for most mountain bikes, road bikes, folding bicycles, racing bikes
  • The Rear Derailleur Guard is certainly worth purchasing if your derailleur is unprotected. It Provides effective protection for rear derailleur, prevent the derailleur was struck distorti on or displacement in riding
  • [note] this is a direct mount rear transmission for a mountain bike, not a suspended one.
  • [IMPORTANT] It's Direct Mount Rear Derailleur for Mountain Bike, not Hanger mount
  • GURANTEE:Suitable for mountain bikes,folding bicycles, commuter bikes.If you have any questions, please contact us, we will provide you with the best solution
  • Applicable Occasion: Compatible with 6/18 Speed 7/21 Speed, suitable for mountain bikes and road bikes.
  • Premium Quality:Accurate gears provide light and stable shift performance,and making riding easy.
  • Easy to Install: Adopt ergonomic design, with simple design, easy to install and remove, convenient to use.
  • MODEL:RD-TZ31-A bike rear derailleur.This is a mountain bike derailleur, which is basically suitable for mountain bike, and can adjust the speed of 6 / 7.
  • 🚲The rear dial is made of high quality metal material and is durable.
  • 🚲The rear armor uses an oversized roller to extend the life and reduce noise.
  • 🚲This rear dial is suitable for mountain bikes, road bikes, and variable speed bicycles.
  • 🚲Professional looks and performance, SGS cage can handle wide range gearing and 34 tooth sprockets.
  • 🚲Black rear mech derailleur, suitable for hanging gear 6-7 gear.
  • Excellent quality products, superb customers care, warranty: 12-month
  • B tension adjustment screw for simple adjustment
  • Long cage tourney derailleur, compatible with 11T high speed gear
  • Smooth shifting, easy and fast to install, large guide wheel, low noise
  • Rear derailleur, 7 speed positioning rear shifting chain (7-speed Zui Jia, 8-speed compatible)
  • Shifter/Rear Derailleur : Shimano, Speeds: 8sp, Weight: 326g
  • Derailleur Color: black, Drivetrain Spacing: Shimano/SRAM 8, Largest Cog: 34teeth
  • Chain Wrap Capacity: 43teeth, Derailleur Action: Top-Normal (Traditional)

More Info

1    2    3    4    5    6    7    8    9    10