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microSHIFT ADVENT X V2 Rear Derailleur - 10-Speed, Medium Cage, Clutch, ADVENT X and Sword Compatible, Black, Ver. 2
microSHIFT ADVENT X V2 Rear Derailleur - 10-Speed, Medium Cage, Clutch, ADVENT X and Sword Compatible, Black, Ver. 2

microSHIFT's ADVENT X Ver.2 is the same great derailleur you know and love, but with an all new cage design that improves performance under the hardest … read more

5% offretail $76.99 your price $72.99 + ships free

BuyBuyPART NUM 686303
SRAM Force 1 Type 3.0 Medium Cage Rear Derailleur
SRAM Force 1 Type 3.0 Medium Cage Rear DerailleurSRAM

For use only with single chainring drivetrains Uses improved Type 3.0 roller clutch design Item Specifications Color: Gray Weight: … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

$29 offretail $243.00 your price $213.84 + ships free

BuyBuyPART NUM 910659
SRAM 2012+ Red 10 Speed Medium Cage WiFli Rear Derailleur
SRAM 2012+ Red 10 Speed Medium Cage WiFli Rear DerailleurSRAM

SRAM 2012 Red Rear Derailleurs New silent shifting with optimized AeroGlide Pulleys, ceramic bearings New spring-fixed barrel adjuster … read more

StarStarStarStarStar 5 of 5 ( 2 ) 5 of 5 stars average ( 2 reviews )

$37 offretail $309.00 your price $271.92 + ships free

BuyBuyPART NUM 579321
SRAM Force WiFLi Med Cage Rear Derailleur
SRAM Force WiFLi Med Cage Rear DerailleurSRAM

The SRAM Force Rear Derailleur represents the same design philosophy that has yielded our best-in-class products for the MTB market. The Force takes … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

$15 offretail $131.00 your price $115.28

BuyBuyPART NUM 121000
Sunrace RD-R91 Rear Derailleur, 9sp, Mid, SIL
Sunrace RD-R91 Rear Derailleur, 9sp, Mid, SIL

9-speed road rear derailleur High polished aluminum outer link Composite, aluminum and steel construction SHIMANO Equivalent … read more

your price $48.99 + ships free

BuyBuyPART NUM 675792
Shimano Deore RD-M5130 Rear Derailleur - 10-Speed, Medium Cage, Black
Shimano Deore RD-M5130 Rear Derailleur - 10-Speed, Medium Cage, BlackShimano

Find your riding zone with the smooth and decisive shifting of the Shimano Deore M5130 10-speed Rear Derailleur for LINKGLIDE drivetrains. SHADOW+ technology … read more

your price $54.99

BuyBuyPART NUM 472338
Shimano Ultegra RD-RX800-GS Rear Derailleur - 11 Speed, Medium Cage, Black, With Clutch
Shimano Ultegra RD-RX800-GS Rear Derailleur - 11 Speed, Medium Cage, Black, With ClutchShimano

The Ultegra RX Rear Derailleur brings Shimanos' chain stabilizing technology road cycling drivetrains, delivering smooth and precise shifting over technical … read more

your price $121.99 + ships free

BuyBuyPART NUM 598832
microSHIFT ADVENT Rear Derailleur - 9 Speed, Medium Cage, Black, With Clutch
microSHIFT ADVENT Rear Derailleur - 9 Speed, Medium Cage, Black, With Clutch

Designed with the rider in mind, the ADVENT rear derailleur packs trail-ready features into an attainable wide range drivetrain system. The derailleur … read more

9% offretail $64.99 your price $58.99 + ships free

BuyBuyPART NUM 536870
Campagnolo Super Record WRL Rear, 12sp, Mid, CRBN
Campagnolo Super Record WRL Rear, 12sp, Mid, CRBNCampagnolo

The new Super Record Wireless rear derailleur makes the most of Campagnolo state-of-the-art technology to guarantee maximum shifting performance Thanks … read more

$89 offretail $899.95 your price $809.96 + ships free

BuyBuyPART NUM 155609
Sram Force XPLR eTAP AXS D2, 12sp, Med, BLK/IR
Sram Force XPLR eTAP AXS D2, 12sp, Med, BLK/IRSRAM

A dedicated 1x-specific unit designed for use with a 10-44T or 10-36T cassette, it makes for an uncluttered drivetrain that takes on pavement and singletrack … read more

your price $377.00 + ships free

BuyBuyPART NUM 970108
microSHIFT R10 Rear Derailleur - 10-Speed, Medium Cage, Shimano Road Compatible, Black
microSHIFT R10 Rear Derailleur - 10-Speed, Medium Cage, Shimano Road Compatible, Black

microSHIFT R10 rear derailleurs feature forged and CNC machined construction that pairs durability with a quality finish. This lightweight and lightweight … read more

20% offretail $49.99 your price $39.99 + ships free

BuyBuyPART NUM 429069
SRAM Rival XPLR eTap AXS Rear Derailleur - 12-Speed, 44t Max, Black, D1
SRAM Rival XPLR eTap AXS Rear Derailleur - 12-Speed, 44t Max, Black, D1SRAM

If your ride doesn’t feel complete until you get a little dirt on your tires, you know the importance of capable components that can tackle anything. … read more

$36 offretail $300.00 your price $264.00 + ships free

BuyBuyPART NUM 966264
microSHIFT Acolyte Rear Derailleur - 8 Speed, Medium Cage, With SpringLock Chain Retention
microSHIFT Acolyte Rear Derailleur - 8 Speed, Medium Cage, With SpringLock Chain Retention

The heart of the Acolyte derailleur is our innovative SpringLock system. By pairing a customized linear rate high tension spring and a dual stage activation … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

8% offretail $36.99 your price $33.99

BuyBuyPART NUM 465431
Shimano Ultegra R8050-GS 11-Speed Di2 Medium Cage Rear Derailleur
Shimano Ultegra R8050-GS 11-Speed Di2 Medium Cage Rear DerailleurShimano

Item Specifications Weight: 242 Largest Cog: 34 Chain Wrap Capacity: 39 Cage Length: Medium Drivetrain Speeds: 11 Rear Der/Shifter Compatibility: … read more

your price $269.99 + ships free

BuyBuyPART NUM 544382
Shimano Sora R3000-GS 9-Speed Medium Cage Rear Derailleur Black
Shimano Sora R3000-GS 9-Speed Medium Cage Rear Derailleur BlackShimano

Shimano Sora R3000-GS 9-Speed Medium Cage Rear Derailleur Black Item Specifications Color: Black Largest Cog: 34 Chain Wrap Capacity: 43 Cage Length: … read more

your price $43.90 + ships free

BuyBuyPART NUM 452686
Campagnolo Chorus Rear Derailleur - 12-Speed
Campagnolo Chorus Rear Derailleur - 12-SpeedCampagnolo

The Campagnolo Chorus 12-speed rear derailleur features 3D Embrace technology and 12-tooth pulley wheels making it suitable for all cassettes as the distance … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

$19 offretail $178.95 your price $159.27 + ships free

BuyBuyPART NUM 660575
Shimano XT M8000-GS 11-Speed Medium Cage Shadow Plus Rear Derailleur Black
Shimano XT M8000-GS 11-Speed Medium Cage Shadow Plus Rear Derailleur BlackShimano

Shimano XT RD-M8000 Rear Derailleurs 46 tooth maximum rear cog for 1x11, 42 tooth maximum for 2x11 and 40 tooth maximum for 3x11 Externally … read more

your price $104.00

BuyBuyPART NUM 974411
SRAM X1 11 Speed X-Horizon Type 2.1 Rear Derailleur
SRAM X1 11 Speed X-Horizon Type 2.1 Rear DerailleurSRAM

SRAM X1 Rear Derailleur X-Horizon design maintains constant chain gap across all gears and eliminates ghost shifting Cannot be used with … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

$28 offretail $236.00 your price $207.68 + ships free

BuyBuyPART NUM 351400
microSHIFT ADVENT Rear Derailleur - 9 Speed, Medium Cage, Black
microSHIFT ADVENT Rear Derailleur - 9 Speed, Medium Cage, Black

Designed with the rider in mind, the ADVENT rear derailleur packs trail-ready features into an attainable wide range drivetrain system. The derailleur … read more

11% offretail $44.99 your price $39.99 + ships free

BuyBuyPART NUM 887207
Shimano Tiagra 4700-GS 10-Speed Medium Cage Rear Derailleur
Shimano Tiagra 4700-GS 10-Speed Medium Cage Rear DerailleurShimano

Shimano Tiagra RD-4703 Rear Derailleurs Wide link design increases rigidity 11 tooth pulleys for reduced pulley wear and chain noise … read more

your price $48.99 + ships free

BuyBuyPART NUM 954813
SRAM

"Incremental enhancements. Perpetual improvements. Revolutionary Innovation. When advancements are continuously made to every attribute of every component, the result is overall performance that is simply second to none. And to real cycling enthusiasts, there is nothing more gratifying then achieving the ultimate ride. And the best part is we just keep making it better. This is what SRAM is all about."

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Shimano

"Shimano practices good local citizenship, pursues continued access to those areas that are enjoyed by outdoor enthusiasts, and is committed to minimizing our impact on the environment."

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Campagnolo

"Campagnolo puts all of its professionalism and expertise into the manufacture of its components in Via della Chimica plant in Vicenza. All production takes place exclusively within Campagnolo's own plants, so that product development can be a fully integrated part of the process. Every step in the process, from design and engineering to testing and industrialisation, takes place within Campagnolo facilities. Campagnolo even develops its own tools, machinery and technology so that it can produce only the very best components and wheels for racing bicycles."

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The number of speeds should correspond to the number of cogs on the cassette.

Cage Length

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