Recommended Use

Activity

Actuation

Drivetrain Speed

Cage Length

bottomline

SRAM

On the road and on the dirt, SRAM is known worldwide for its precision drive train and shifting components. SRAM makes high-performance, ultra-durable goodies for everything from lightweight carbon road bikes to burly downhill race rigs. Riders like Steve Peat and Reid Mumford help design and test SRAM components to ensure everything is ready to roll straight off the line. 

Shop one of the top bike part brands, SRAM, for cranksets, derailleurs, cassettes, and more.

SRAM - Bike Parts & Accessories

SRAM has come a long way since its founding in 1987. Starting with the iconic Grip Shift twist shifter, the Chicago-based company has grown and expanded to become an industry leader. In addition to building its own innovative designs, SRAM has over the years acquired brands like Rock Shox, Avid, Truvativ, and Zipp, which has enabled it to essentially offer all of the components needed to build a complete bike, from professional-level road and mountain bikes to entry level-bikes for casual cyclists.<br><br>In recent years, SRAM has generated enthusiastic reviews for its road components, which include the top-tier Red group, race-driven Force group, and the value-focused Rival groupset. But it could be argued that SRAM's biggest impact as of late was the advent of the XX1 mountain bike groupset. By introducing an ultra-wide-range 11-speed cassette, SRAM was able to shed the front derailleur entirely, while still offering a gear range similar to that of more traditional double and triple chainring drivetrains. It's also freed up a design constraint, allowing manufacturers to build better full suspension bikes. And with this technology trickling down to the X01 and X1 groupsets, SRAM's approach to drivetrains could be considered the latest revolution in mountain bike design.<br><br>While drivetrains are a key part of the picture, new disc brake designs are also reshaping the modern bicycle. SRAM was a pioneer of hydraulic disc brakes for road bikes, which enhance safety and reduce fatigue as compared to traditional rim brakes. And with the Guide series of brakes on the mountain side, SRAM's components can be trusted to keep you in control just as effectively as they propel you forward. 

Black

Detail

Material

Gearing

Compatibility

Claimed Weight

Manufacturer Warranty

storecredits

gruppoPrice

weight

Black, 2.1/11sp

XX1 2.1 Rear Derailleur

Discount applies to full-price items only. 

Get the scoop on sales and gear

15% off when you sign up for email

Bikes

Custom Builds

Brands

Road

Mountain

Triathlon

Accessories

Women

Wheels, Tires, Tubes

Drivetrains, Brakes

Forks, Cockpits, Pedals

Components

Bike Essentials

Maintenance & Transportation

Performance

Just In

Mens

Womens

Bike Components

Sale

CC X L39ION

Learn

By submitting this form, you agree to receive recurring automated promotional and personalized marketing text messages (e.g. cart reminders) from Backcountry at the cell number provided when signing up. Consent is not a condition of any purchase. Msg frequency varies. Msg. and data rates may apply. 

First dibs on products, sales & exclusives

Sign up for text alerts & get 15% off

SRAM
XX1 2.1 Rear Derailleur

XX1 2.1 Rear Derailleur

Details

Tech Specs