Best Carbon Rear Bike Derailleurs in 2026

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

Shimano Acera M360 7

8-Speed Rear Derailleur with SmartCage, Black

Shimano Acera Rear derailleur compatible with all Shimano 7 & 8 Speed shifters. Advanced light action design.

Direct frame fit. SIS Rear index shifting.

Megapulley oversize jockey wheel. Smartcage pulley plate.

Rear Derailleur (3x8-speed)

8-speed drive train

Durable light action shifting peformance for stress free riding. Double Servo-panta Mechanism

Stabilizer switch to reduce chain slap

Low profile Shadow design

10-Speed Shadow Plus MTB rear derailleur

Shimano fd-m310 Altus 8-Speed front derailleur, conventional swing, 42-48t, 66-69 degree

Material: aluminum

Capacity: [medium] 39T, [long] 47T

Cassette Range: [medium] 42T (2x11), 46T (1x11), [long] 40T (3x11), 42T (2x11), 46T (1x11)

Model: RD-TY300 rear derailleur, compatible with 6 and 7-speed SIS INDEX variable speed transmission systems compatible with 11T /14T high speed gear

Stability: Durable aluminum alloy material and excellent shifting performance ensure safe and stable riding Smooth shifting,

Wide application: Rear derailleur is easy to use and maintain.Suitable for MTB,mountain bikes, road bikes, folding bicycles and so on.

Extended B-Knuckle for improved clearance for 28t cassettes

Exact Actuation shifting provides fast, accurate shifts

Outside Carbon Cage designed for precise chain management and new reduced profile inner cage

Details:Compatible with the Cannondale Trail 15-19, Adventure 17-19, Bad Boy 16-19, Catalyst 16-19, Contro 15-16, Cujo 17-19, Foray 17-19, Kids Cujo, Kids Trail, Kids Quick, Kids Street, Kinneto, Law Enforcement, Mavaro Neo, Quick 16-19, Quick CX 15-19, Quick Neo 18, Scarlet, Tango16-19, Tesoro Neo, TreadwellThis solid derailleur hanger is designed to keep the derailleur stabilized during the roughest riding conditionsComes with hanger and mounting hardware (2 screws)

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.

Easy to Install: Adopt ergonomic design, with simple design, easy to install and remove, convenient to use.

Premium Quality:Accurate gears provide light and stable shift performance,and making riding easy.

【Model】 Shimano Tourney (SIS) RD-TZ31-GS 6/7 speed，medium-cage , direct mount.No retail packaging. Items as shown

【Specifications】 Total capacity(aka chain capacity) 34T, Largest sprocket 28T , Smallest sprocket 14T, Front chainwheel tooth difference 20T.

【Compatibility】 Compatible with 6 and 7-speed SIS Index Shifting drivetrains, for mountain bike.

Precise chain movement changes gears smoothly

Direct Mount

Light shift effort

Sram X3 is a great beginners or light adventurers rear derailleur

The X3 rear derailleur sets the standard for opening price point shifting performance

Outer cage made of steel

TX models come with Smart Cage which gives MegaRange compatibility with a shorter derailleur cage

TX models come with Smart Cage which gives MegaRange compatibility with a shorter derailleur cage

Chain Wrap Capacity: 43

【PACKAGE】2 x Bicycle Frame Derailleur Gear Tail Hook Replacement.

【FUNCTION】Play a role that protects the transmission after dialing role.

【APPLICATION】Universal type fit for most of bike in case of emergency.

MODEL: SHIMANO TOURNEY RD-TY21B 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.

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.

MODEL: RD-TZ31A 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.

*Model：RD-TY21B rear derailleur compatible with 6/7 speed mountain bikes.

*Note:The rear derailleur is direct mount,not hub bolt mount .Please check the mount type of the original part before ordering.

*Stability: Durable aluminum alloy material and excellent shifting performance ensure safe and stable riding.

Model: RD-M2000; 9 Speed Bike Rear Derailleur for mountain bike road bike bmx etc.

Super Low-Profile Concept with SHADOW Mechanism: Shimano SHADOW RD Wider linkage ensures durability and more precise shifting quick and easy wheel installation,high tension spring for quick and easy wheel installation and removal.

Features: This rear derailleur is for 9 speed drivetrain;Compatible with HG 9-speed chain; Total capacity-45T; Pulley Teeth-11T; Low sprocket Max.-36T, Low sprocket_Min.-32T.

Cage Lengths: SGS-long, Capacity: 45T, Derailleur Action: Top-Normal (Traditional)

Derailleur Color: black, Drivetrain Spacing: Shimano/SRAM 9, Largest Cog: 34teeth, Min/Max: 11/34T

Shifter/Rear Derailleur : SRAM 1:1, Speeds: 7/8sp, Speeds: 8sp, Speeds: 9sp, Weight: 310g

Universal Derailleur Guard for Quick Release or Bolt on Rear Axles.

Easy to installed:Just be fixed in the corresponding hole position.

Made of strong steel,very durable,suitable for most mountain bikes, road bikes, folding bicycles, racing bikes.

Rear derailleur: 7/8/9 speed, direct mount

Stability: Durable aluminum alloy material and excellent shifting performance ensure safe and stable riding.

Note:The bike rear derailleur is direct mount,not hub bolt mount.

Model: RD-TY21B rear derailleur compatible with 6/7 speed mountain bikes.

Note:The rear derailleur is direct mount,not hub bolt mount .Please check the mount type of the original part before ordering.

Stability: Durable aluminum alloy material and excellent shifting performance ensure safe and stable riding.

Tourney RD-TY500 Rear Derailleur

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

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 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.

Material: forged aluminum, carbon fiber, [spring] titanium, [outer cage] carbon fiber, [bearings] stainless steel

Capacity: 52t

Cassette Range: 10 - 50t, 10 - 52t

Universal bicycle rear derailleur protection: it really protects the front derailleur from knocks in the event of a fall

Easy to install: pull out axle, thread protection on axle, tighten with nut, done

High quality: the bicycle safety bar is made of high-quality iron, rust-proof and durable

Carbon cages, carbon inner links, titanium hardware

Exact actuation shifting provides fast and accurate shifts

Weight: 165G