12 Speed Bicycle Rear Derailleurs
The number of speeds should correspond to the number of cogs on the cassette.
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Showing 55 products:
SRAM GX Eagle Rear Derailleur - 12-Speed, Long Cage, 52t Max, Lunar
BuyPART NUM 734919
The GX Eagle Rear Derailleur gets the job done with a thoughtfully designed cage architecture that improves chain management. Mounting system … read more
In Store
Lowest Price
SRAM 00.7518.137.000
Ships Free$27 offretail $135.00 Ends 12/4! $108.00 + ships free
BuyPART NUM 734919 
SRAM X01 Eagle AXS Rear Derailleur, 12 Speed, Black BuyPART NUM 927671
The Eagle AXS derailleur is the brain of the whole AXS system Shorter cage for 10mm more ground clearance, with more chain wrap on the … read more
$53 offretail $538.00 Ends 12/4! $484.20 + ships free
BuyPART NUM 927671 
SRAM, GX1 Eagle AXS, Rear Derailleur, Speed: 12, Grey BuyPART NUM 746382
AXS enabled componentry software that makes it possible to both program and personalize Overload Clutch protection Compatible with … read more
$78 offretail $390.00 Ends 12/4! $312.00 + ships free
BuyPART NUM 746382 
SRAM Rival XPLR eTap AXS Rear Derailleur - 12-Speed, 44t Max, Black, D1 BuyPART NUM 966264
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
$30 offretail $300.00 Ends 12/4! $270.00 + ships free
BuyPART NUM 966264 
SRAM NX Eagle 12-Speed Rear Derailleur, Black BuyPART NUM 543940
The NX Eagle rear derailleur features the proven SRAM 1x-specific X-HORIZON design. The larger, 14-tooth X-SYNC lower pulley easily facilitates 11- to … read more
$11 offretail $115.00 Ends 12/4! $103.50 + ships free
BuyPART NUM 543940 
Campagnolo Chorus Rear Derailleur - 12-Speed
5 of 5
( 1 )
5 of 5 stars
( 1 review )
BuyPART NUM 660575
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
5 of 5
( 1 )
5 of 5 stars
( 1 review )
$19 offretail $178.95 your price $159.27 + ships free
BuyPART NUM 660575 
Sram X0 Eagle T-Type AXS Long Cage BuyPART NUM 780988
Mounts around the wheel axle itself, contacting the cassette directly with a first-of-its-kind Hangerless Interface An overload clutch boosts … read more
your price $550.00 + ships free
BuyPART NUM 780988 
Sram Force XPLR eTAP AXS D2, 12sp, Med, BLK/IR BuyPART NUM 970108
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 $369.00 + ships free
BuyPART NUM 970108 
SRAM X01 Eagle B2 Rear Derailleur, 12 Speed, Lunar BuyPART NUM 601107
Updated cage provides better chain retention and more precise shifts. Compatible with 10-50t and 10-52t cassettes. Item Specifications … read more
$21 offretail $214.00 Ends 12/4! $192.60 + ships free
BuyPART NUM 601107 
Shimano Deore RD-M6100-SGS Rear Derailleur - 12-Speed, Long Cage, Black
BuyPART NUM 674127
The Shimano RD-M6100 Rear Derailleur provides efficient and smooth shifting for Deore M6100 12-speed drivetrains. Features the Shadow RD+ chain … read more
your price $64.99
BuyPART NUM 674127 
Shimano XT RD-M8100-GS Rear Derailleur - 12-Speed, Medium Cage, Black BuyPART NUM 718427
Deore XT RD-M8100 Rear Derailleur Rear Derailleur Mount Type: Shimano Rear Direct Mount, 10x1 Standard Rear Der/Shifter Compatibility: Shimano Mountain … read more
your price $121.99
BuyPART NUM 718427 
SRAM Red XLPR eTAP AXS D1, 12sp, Long, BLK BuyPART NUM 478961
The Red XPLR eTap AXS rear derailleur is a dedicated 1x-specific unit designed for use with the XPLR 10-44 cassettes Wireless electronic eTap shift … read more
$112 offretail $749.00 Ends 12/4! $636.65 + ships free
BuyPART NUM 478961 
Shimano XTR RD-M9100-GS Rear Derailleur - 12 Speed, Medium Cage, Gray, With Clutch BuyPART NUM 637658
Shimano XTR M9100 rear derailleur features decreased rear derailleur tension at low gear position, to prevent high chain tension at low gear. … read more
your price $273.99 + ships free
BuyPART NUM 637658 
Campagnolo Super Record 12 Speed Rear Derailleur, Medium, Carbon BuyPART NUM 324213
12 speed Super Record rear derailleur Unidirectional carbon outer cage and carbon fibre-reinforced technopolymer body Only one … read more
$13 offretail $481.95 your price $467.99 + ships free
BuyPART NUM 324213 
SRAM XX1 Eagle B2 Rear Derailleur, 12 Speed, Black BuyPART NUM 197412
Updated cage provides better chain retention and more precise shifts. Compatible with 10-50t and 10-52t cassettes. Item Specifications … read more
$32 offretail $323.00 Ends 12/4! $290.70 + ships free
BuyPART NUM 197412 
Shimano XT RD-M8120-SGS Rear Derailleur - 12-Speed, Long Cage, Black, For 2x BuyPART NUM 625849
The Shimano Deore XT RD-M8100/M8120 rear derailleur is designed to provide smooth and stable shifting for 12-speed MTB drivetrains. Long cage … read more
your price $114.99 + ships free
BuyPART NUM 625849 
SRAM XX1 Eagle AXS Rear Derailleur - 12 Speed, Black BuyPART NUM 146562
The SRAM XX1 Eagle AXS 12-speed rear derailleur is trail ready with AXS enabled componentry that makes personalization of the motor-driven derailleur … read more
$75 offretail $753.00 Ends 12/4! $677.70 + ships free
BuyPART NUM 146562 
SRAM RED eTap AXS Rear Derailleur - 12-Speed, Short Cage, Black, D1 BuyPART NUM 520532
The SRAM RED eTap AXS rear derailleur is AXS enabled for easy personalization and designed for both 1x and 2x systems. Orbit advanced chain management … read more
$114 offretail $764.00 Ends 12/4! $649.40 + ships free
BuyPART NUM 520532 
Shimano Dura-Ace RD-R9250F Di2 Rear Derailleur - 12-Speed, Medium Cage, Includes TL-EW300, Black BuyPART NUM 995963
The Shimano Dura-Ace RD-R9250 rear derailleur integrates the system charging port and a wireless connectivity unit all while delivering super fast, precise … read more
your price $814.99 + ships free
BuyPART NUM 995963 
Campagnolo Super Record WRL Rear, 12sp, Mid, CRBN BuyPART NUM 155609
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
BuyPART NUM 155609 
"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."
"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."
"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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In Store products are available to view in our showroom. In Store orders usually ship the same or next business day.
These models are available for online purchasing and can be shipped directly to you.
The number of speeds should correspond to the number of cogs on the cassette.
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