Contact Modern Bike via email, telephone, or showroom visit.
learn more
You may check the order status of a recent purchase to learn if it has been delayed, when it may ship, or if it has already been shipped.
check order status
Your Shopping Cart contains 0 products. View your cart to change product quantities, apply deal codes, or checkout.
Showing 84 products:
For use only with single chainring drivetrains Uses improved Type 3.0 roller clutch design Item Specifications Color: Gray Weight: … read more
$29 offretail $243.00 your price $213.84 + ships free
BuyPART NUM 910659The 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
$19 offretail $178.95 your price $159.27 + ships free
BuyPART NUM 6605759-speed road rear derailleur High polished aluminum outer link Composite, aluminum and steel construction SHIMANO Equivalent … read more
your price $48.99 + ships free
BuyPART NUM 675792The 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
BuyPART NUM 598832microSHIFT'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
BuyPART NUM 686303Designed 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
BuyPART NUM 536870A 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
BuyPART NUM 970108With a raceworthy weight and the right gearing for any situation, microSHIFT's top-of-the-line ADVENT X rear derailleur delivers high-end performance … read more
8% offretail $76.99 your price $70.99 + ships free
BuyPART NUM 92109012 speed Record rear derailleur Alloy outer cage and carbon fibre-reinforced technopolymer body Only one cage length, compatible with … read more
$58 offretail $288.20 your price $229.38 + ships free
BuyPART NUM 517802If 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
BuyPART NUM 966264The 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
8% offretail $36.99 your price $33.99
BuyPART NUM 465431Item 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
BuyPART NUM 544382Tackle trails with this versatile Shimano CUES RD-U6000 Shadow+ 1x11-speed rear derailleur's seamless shifting and pedaling. Its low-profile design and … read more
your price $69.99 + ships free
BuyPART NUM 127620Shimano 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
BuyPART NUM 452686Shimano 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
BuyPART NUM 974411SRAM X1 Rear Derailleur X-Horizon design maintains constant chain gap across all gears and eliminates ghost shifting Cannot be used with … read more
$28 offretail $236.00 your price $207.68 + ships free
BuyPART NUM 351400Designed 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
BuyPART NUM 887207microSHIFT 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
BuyPART NUM 429069Item Specifications Color: Black Cage Length: Medium Drivetrain Speeds: 10 Rear Derailleur Mount Type: 10x1 Standard … read more
your price $74.99 + ships free
BuyPART NUM 677301Shimano 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
BuyPART NUM 954813"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."
We define color as the main color of the item. It may have accents or highlights in other colors.
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.
Cage Length
Our Lowest Price - This product is ineligible for additional discounts or rebates.
These products are one of our best sellers.
Buy this product and your entire order ships for free.
Some orders are inelligible for delivery discounts. See offer details for disqualifying products and destinations.