Best Folding 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

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.

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

Lighter operation

Available in SS and GS type

37T/44

MODEL: SHIMANO TOURNEY RD-TY200 bike rear derailleur, Compatible with 6 and 7-speed SIS Index Shifting drivetrains.

IMPORTANT: The Shimano direct mount rear derailleur for mountain bike, not hub bolt mount (hanger mount).

EXCELLENT PERFORMANCE: Accurate gears provide light and stable shift performance, and making riding easy and comfortable.

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

MODEL:RD-TY300 Rear Derailleur,Suitable for 6/7/8 speed.

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.

Smooth shifting, easy and fast to install. Bracket fit (under wheel nut) Long cage tourney derailleur, compatible with 11T /14T high speed gear

Rear derailleur, compatible with 6 and 7-speed SIS INDEX variable speed transmission systems

B tension adjustment screw, so that the distance between the upper guide wheel and the tooth tip of the largest flywheel can not be less than 6mm

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

*Note:The bike rear derailleur is hub bolt mount (hanger mount),not direct mount .Please check the mount type of the original part before purchasing.

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

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】Bicycle rear derailleur RD-TY21B, suitable for 6-speed and 7-speed SIS index variable speed drives. Please pay attention to the speed when buying.

【Hook mounted】Before purchasing, please confirm whether the rear derailleur of your bicycle is directly installed or hook mounted. This model is a Hook mounted method.

【High-quality material】This bicycle rear derailleur is made of high-quality steel, sturdy and durable, not easily deformed and not easily damaged.

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

Application:Provide effective protection for rear derailleur, prevent the derailleur was struck distortion or displacement in riding.

Size:115 X 54 X40 mm/4.5'' X 2.1'' X 1.57''

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

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.

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.

[Bike Rear Derailleur Hanger]: Well protecting your bike from being damaged in case of falling down with this derailleur hanger, it will absorb the impact to reduce the damage

[Durable Aluminium Alloy]: Made of high quality aluminium alloy, the rear derailleur hanger has good texture, smooth surface, practical durable for longer use

[Easy to Install]: Comes with screws, the derailleur hanger is easy to install and remove; Before installing a derailleur hanger, the rear dropouts need to be check for alignment. If the rear dropouts are not aligned and the new derailleur hanger is installed, it will break or bend

UNIQUE DESIGN -- Our derailleur protector designed with arch angle suppress, make the protector is not easy to deformation under the strong impact force, effective protect the rear derailleur.

HIGH QUALITY -- The bicycle derailleur guard rack protector is made of high quality steel, anti-rust and durable, as well as can be easily installed with a single fixed hole.

EASY TO INSTALL -- Left and right wings slot, with the aid of frame can be more fastness install on the frame. Single fixed hole can be easily installed. Can also be used protect rear derailleur when tripped, is very reliable.

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

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

APPLICATION: This single speed bike adjuster suitable for folding bike with 11T or 13T rear derailleur, great accessory for cycling lovers

GOOD PERFORMANCE: Spring design can fit various sizes of gear, and prevent chain from skidding out from the crank

SAVE EFFORT: This chain adjuster can change multi-speed bikes into single speed bike, ensures perfect tension for your chain to make you pedal with less efforts

MODEL: RD-M310 Altus Rear Derailleur for Shimano Compatible with 7/8 Speed / D-ATT Black.

EXCELLENT PERFORMANCE: Wide link design ensures durability and precise shifting. Large guide wheel design reduces noise and wear.

PARM: Max Rear Sprocket: 34T, Total Capacity: 43T, Derailleur Action: Top Normal (Traditional), Cage Length: Long.

【Features】:Bicycle Rear Derailleur, Speed: 6/7/8/9/10/11 . Which can reduces noise and brings excellent speed change performance to ensure long-term comfortable riding.

【Suitability】:Max Sprocket 36T. Min Sprocket 11T. Compatible with 11T /14T high speed gear.

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

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.)

Just lock under rear wheel quick release or under fixed screw.

Suitable for most mountain bike, road bicycle, folding bike, and etc.

Protect your bikes rear derailleur from damages.