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Derailleurs

Derailleurs are available in many configurations, to fit different gear combinations, tubing diameters, cable routings, etc. SouthWest Bicycles carries a good supply and can help determine the proper make and model for your needs.

Shimano Deore XT Shadow + Rear Derailleur (Long Cage)
$107.99 - $109.99
Shimano's Deore XT Rear Derailleur uses cold-forged construction and cutting edge technology to deliver crisp shifting, real-world reliability, and trademark precision. Plus-type derailleurs use a lever-actuated clutch spring to prevent chain slap, reduce noise while on the trail, and improve chain engagement when riding over rough terrain. Sealed pulley bearings keep things spinning smoothly, and wide plate construction prevents the derailleur from getting clogged with mud and debris.
Third Eye Chainwatcher
$14.99
- Prevents chain derailment when shifting to inner ring - Adjustable hose-type clamp fits 1-1/8" to 1-3/8" seat tubes
Shimano Deore XT Front Derailleur (E-Type)
$41.99 - $45.99
• Wider clearance for large wheels • Compatible with shorter chain stays • Efficient cable routing for light shift operation • Increased traction range for long-travel and active rear suspension • Model Number : FD-M8020 • Series : DEORE XT • Swing Action : Side Swing • Cassette Compatibility : 11 • Maximum Capacity : Total capacity 10T • Top Gear Teeth : 34-38T • Cable Routing : Front-Pull • Chain Line : 48.8 • Chain Stay Angle : 66-69 • BB Mounting Plate : E-Type
Campagnolo EPS Front Derailleur Stiffener
$85.00
- Required for use on carbon frames with carbon front derailleur braze on mounts - Compatible with all Campagnolo EPS front derailleurs - Increases the stiffness of carbon front derailleur braze-on mounts to handle the increase torque of EPS front derailleurs
Campagnolo EPS Front Derailleur Nut & Washer
$17.90
- EPS specific front derailleur nut and washer
Shimano SLX 2x11 Front Derailleur
$29.99
- Series: SLX - Top Gear Teeth: 34-38T - Chain Line: 48.8 - Chain Stay Angle: 66-69 - Average Weight: 145.6g
SRAM X0 2x10 Front Derailleur (Low Direct-mount, Bottom-pull)
$69.00
SRAM's X0 Front Derailleur is made from cold-forged aluminum and chrome-plated steel for exceptional reliability and a race-worthy weight. It boast’s SRAM’s X-Glide technology for super-smooth and lightning-quick shifting even under load.
SRAM BlackBox Ceramic Bearing Pulleys - Mountain
$154.00
SRAM's BlackBox Ceramic Bearing Pulleys run on super-smooth and efficient ceramic bearings so your drivetrain pedals with ease. They are also lighter than conventional pulleys. These fine pulleys even come with SRAM's ceramic-bearing grease in an easy-to-use 10ml syringe container (image of grease unavailable from manufacturer).
SRAM Force 1 Rear Derailleur
$225.00
The SRAM Force 1 rear derailleur adopts all the technologies of SRAM 1x MTB to provide the fastest, quietest 1x shifting available. SRAM’s unique clutch system eliminates chain slack, providing for smoother, quieter, and more secure chain travel. - A dedicated 1x rear derailleur - EXACT ACTUATION for fast and accurate shifts using SRAM’s 1:1 actuation ratio (shifter cable travel: derailleur movement). - 10- and 11-speed compatible - X-SYNC pulley features a 12-tooth design that helps control the chain’s lateral movement - X-HORIZON “straight parallelogram” design limits all movement to the horizontal axis, which makes ghost shifting impossible while also reducing shift force - ROLLER BEARING CLUTCH’s one-way roller clutch controls chain tension for consistent shifting - Cage Lock technology makes for fast wheel changes or chain installation - Available in Short: 11-26 through 11-28 / Medium: 11-26 through 11-36 / Long 11-32 through 10-42 cage lengths Short Cage: Chain Wrap Capacity (teeth): 18 teeth Largest Cog: 28 Weight: 250 g Medium Cage: Chain Wrap Capacity (teeth): 26 teeth Largest Cog: 36 Weight: 262 g Long Cage: Chain Wrap Capacity (teeth): 32 teeth Largest Cog: 42 Weight: 271 g
Shimano GRX RX817 Di2 11-Speed Rear Derailleur
$319.99
With an integrated chain stabilizer mechanism, the Shimano GRX derailleur provides a quieter experience with shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features and ON/OFF switch for the chain stabilizer. The RD-RX817 Di2 version offers the digital precision of Shimano electronic shifting, as well as synchronized shifting and is compatible with MTB cassettes with a max cog size of 42T. - Adjustable, gravel-tuned chain stabilizer prevents chain slapping and drops - Switch stabilizer ON/OFF to match the terrain - Silent and uninterrupted rear shifting on rough terrain - Compatible with current road Dual Control Levers - High cog: Max. 11T/Min. 11T - Low cog: Max. 42T/Min. 40T - Total capacity: 31T
SRAM X0 2x10 Front Derailleur (High-clamp, Top-pull)
$69.00
SRAM's X0 Front Derailleur is made from cold-forged aluminum and chrome-plated steel for exceptional reliability and a race-worthy weight. It boast’s SRAM’s X-Glide technology for super-smooth, lightning-quick shifting even under load.
SRAM XX1 Ceramic Bearing Rear Derailleur Pulleys
$79.00
SRAM's XX1 Ceramic Bearing Rear Derailleur Pulleys run on super-smooth, efficient ceramic bearings so your drivetrain rolls with ease. They are lighter than conventional pulleys and even come with SRAM's ceramic-bearing grease in an easy-to-use 10ml syringe.
SRAM X0 2x10 Front Derailleur (High-clamp, Dual-pull)
$77.00
SRAM's X0 Front Derailleur is made from cold-forged aluminum and chrome-plated steel for exceptional reliability and a race-worthy weight. It boast’s SRAM’s X-Glide technology for super-smooth and lightning-quick shifting even under load.
Shimano XTR Mechanical Front Derailleur (E-Type)
$93.99 - $119.99
• Alloy cage with titanium hardware offers light and durable performance • Side-swing design better accomodates more suspension designs and an additional 15mm of tire clearance • Increased pull strength provides faster shifting • 48.8mm Chainline Top Swing, Double • Derailleur Capacity: 10 • Double or Triple: Double • Drivetrain Speeds: 11 • Front Der/Shifter Compatibility: Shimano Road • Front Derailleur Cable Pull: Bottom • Front Derailleur Clamp: E-Type • Front Derailleur Style: Topswing • Max Ring (teeth): 38 teeth Side Swing, Double • Derailleur Capacity: 10 • Double or Triple: Double • Drivetrain Speeds: 11 • Front Derailleur Cable Pull: Front Pull • Front Derailleur Clamp: E-Type • Front Derailleur Style: Side Swing • Max Ring (teeth): 38 teeth • Max Ring (teeth): 38 teeth Side Swing, Triple • Derailleur Capacity: 18 • Double or Triple: Triple • Drivetrain Speeds: 11 • Front Der/Shifter Compatibility: Shimano Road • Front Derailleur Cable Pull: Front Pull • Front Derailleur Clamp: E-Type • Front Derailleur Style: Side Swing • Max Ring (teeth): 40 teeth
Shimano XTR Di2 Rear Derailleur (Medium Cage)
$630.99
Shimano's unbelievable Di2 technology has made the leap to the trails with their XTR Di2 drivetrain. This rear derailleur features all of the race-day performance you've come to expect from XTR, and the unrivaled stability, speed, and performance of an electronic drivetrain. Since there aren't any cables to stretch or housing to create friction, shift performance stays amazingly perfect, delivering flawless shifts any time, under any condition. System communication with the front derailleur eliminates chain rub and, if you prefer, the rear derailleur can be optimized to use Shimano's Synchronized Shift technology.
Shimano XTR Mechanical Front Derailleur (Direct Mount)
$93.99 - $119.99
• Alloy cage with titanium hardware offers light and durable performance • Side-swing design better accomodates more suspension designs and an additional 15mm of tire clearance • Increased pull strength provides faster shifting • 48.8mm Chainline Down Swing, Double • Derailleur Capacity: 10 • Double or Triple: Double • Drivetrain Speeds: 11 • Front Der/Shifter Compatibility: Shimano Road • Front Derailleur Cable Pull: Dual Pull • Front Derailleur Clamp: High Direct Mount • Front Derailleur Style: Traditional • Max Ring (teeth): 38 teeth Side Swing, Double • Derailleur Capacity: 10 • Double or Triple: Double • Drivetrain Speeds: 11 • Front Der/Shifter Compatibility: Shimano Road • Front Derailleur Cable Pull: Front Pull • Front Derailleur Clamp: High Direct Mount • Front Derailleur Style: Side Swing • Max Ring (teeth): 38 teeth Side Swing, Triple • Derailleur Capacity: 18 • Double or Triple: Triple • Drivetrain Speeds: 11 • Front Der/Shifter Compatibility: Shimano Road • Front Derailleur Cable Pull: Front Pull • Front Derailleur Clamp: High Direct Mount • Front Derailleur Style: Side Swing • Max Ring (teeth): 40 teeth
SRAM RED eTap Rear Derailleur
$649.00
The SRAM RED eTap rear derailleur executes shifts the instant you demand, wirelessly. It's easy to set up, clean in appearance, and delightfully uncomplicated. Mechanical necessities, such as a carbon pulley cage, ceramic pulley bearings, and anodized alloy artfully blend with proprietary electronic advancements to deliver a shifting wonder. - SRAM eTap shift logic and wireless operation - Fits all 11-speed SRAM road cassettes up to 11-32T - 2x and 1x compatible - Updated version of the original SRAM RED eTap rear derailleur - Orbit chain management technology keeps drivetrain quiet and secure - Larger X-SYNC pulleys and ceramic bearings for increased durability and efficiency - Compatible with existing eTap batteries
Shimano Deore M6025 Double Front Derailleur
$38.99 - $40.99
Features: - Smooth shifting and less cadence shock - Close step (10T) - Efficient cable routing - OPTISLICK cable - Stable performance on suspension bikes - Shifts properly while rear suspension handles rough trails and obstacles - Consistently quiet driving while rear suspension position changes - Custom plate design for single spike gear structure - Chain catcher - 2x10-speed
Shimano Claris FD-R2000 Front Derailleur
$22.99 - $23.99
Claris R2000 series offers reliable functionality at a price point for new riders. Designed for easy rides around town with the durability to handle a long tour, Claris R2000 has a sporty design and promises the opportunity of comfortable and casual riding.
Shimano Deore M6000 Triple Front Derailleur
$38.99 - $44.99
Shimano's Deore Front Derailleur delivers smooth shifting and less cadence shock along with top-notch durability. Made for triple-ring set ups, it's 10-speed compatible. You'll get stable performance, even with full suspension MTB, as it shifts properly while the rear suspension handles rough trails and obstacles. - Consistently quiet driving while rear suspension position changes - Custom plate design for single spike gear structure - Chain catcher - Close step (10T) - Efficient cable routing - OPTISLICK cable - Swing Action: side swing - Top Gear Teeth: 40-42T - Chain Line: 50 - Chain Stay Angle: 66-69
SRAM Force eTap AXS Front Derailleur
$350.00
The SRAM Force eTap AXS front derailleur is AXS enabled for easy personalization. The redesigned derailleur offers better rear-tire clearance—for those that explore all roads—and works perfectly with all chainring combinations. No compromises; never miss a shift. - AXS enabled for easy personalization - Elegant and streamlined form for more rear-tire clearance - SRAM Yaw trimless cage technology with an optimized cage profile for new chainring combinations - Compatible with existing eTap batteries
SRAM GX 2x10 Front Derailleur (Low Direct-mount, Dual-pull)
$35.00
SRAM's low-profile GX 2x10 Front Derailleur was designed specifically around SRAM X-GLIDE shifting. This stiff, strong front derailleur provides, crisp, precise action for fast, smooth and reliable shifting season in and season out.
Shimano Deore XT Shadow + Rear Derailleur (Mid Cage)
$109.99
Shimano's Deore XT Rear Derailleur uses cold-forged construction and cutting edge technology to deliver crisp shifting, real-world reliability, and trademark precision. Plus-type derailleurs use a lever-actuated clutch spring to prevent chain slap, reduce noise while on the trail, and improve chain engagement when riding over rough terrain. Sealed pulley bearings keep things spinning smoothly, and wide plate construction prevents the derailleur from getting clogged with mud and debris.
FSA Front Derailleur Shim
$3.99
- Correct fitment of larger 31.8Mm front derailleur to 28.6Mm seat tubes
Campagnolo Front Derailleur Braze-On Adapter
$34.99
- Hinged band clamp for fitting braze-on front derailleurs on frames without braze-on mount - Aluminum construction - EPS compatible
SRAM Apex Clamp-On Front Derailleur
$48.00
For smooth downshifts and fast upshifts, SRAM's Apex Front Derailleur is engineered for success. Its aluminum body is light as a feather while its steel cage is stiff for precision shifts everytime. The Apex Front Derailleur shifts great on standard and compact cranksets, too.
Shimano Deore M6020 Double Front Derailleur
$37.99 - $39.99
Features: - Smooth shifting and less cadence shock - Close step (10T) - SIDE SWING construction - Efficient cable routing - OPTISLICK cable - Stable performance on suspension bikes - Shifts properly while rear suspension handles rough trails and obstacles - Consistently quiet driving while rear suspension position changes - Custom plate design for single spike gear structure - Chain catcher - 2x10-speed
Sunlite Derailleur Hanger
$4.59 - $21.59
- 6061 Forged Alloy - Made to O.E.M. specifications - Correct hardness to reduce damage to frame upon impact
Shimano Ultegra RD-X805 Di2 Rear Derailleur
$284.99
Ultegra RX brings Shimano's pioneering chain stabilizing technology to road cycling, delivering smooth and precise shifting over technical terrain. It expands road bike capabilities, inspiring confidence on any surface and drives the evolution of road cycling to include greater elements of adventure. No longer is the road bike narrowly defined. Shimano Ultegra RX broadens the notion of drop bar riding and emboldens cyclist to explore further. - Chain Stabilizer mechanism adopted from MTB design - Stabilizer ON/OFF switch - Compatible with current road dual control lever - Shadow RD technology - Direct mount compatible - Maximum cog size: 34t - Total capacity: 39t
Shimano Tourney TX FD-TX800-TS3 Front Derailleur
$11.99
The Shimano Tourney TX800 front derailleur offers precise shifting with HYPERDRIVE technology for 3x7 and 3x8 speed drivetrains. - Action: Top Swing - Applicable Top-Mid tooth difference: 10T - Cable Route Type: Dual-Pull - Chain line: 47.5/50mm - Chainstay angle: 63-66° - Top gear teeth: 42T/48T - Total capacity: 20T
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