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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.

SRAM XX1 Eagle Type-3 Rear Derailleur
$399.99
This derailleur not only answers the Eagle drivetrain’s need for greater capacity, but is also the next evolution of SRAM's proven, 1x-specific X-HORIZON design. The larger, 14-tooth X-SYNC lower pulley, allows 10- to 50-tooth cassette capacity in this compact design, and also adds to Eagle’s overall smooth-pedaling feel. SRAM's Type-3 ROLLER BEARING CLUTCH features a smoother torque curve for a quieter, more consistent operation and feel. CAGE LOCK has been moved back and out of the way, protecting it from trail debris. A redesigned, robust mounting system further improves the Eagle derailleur’s performance and overall durability.
Shimano Deore XT Shadow + Rear Derailleur (Long Cage)
$99.99 - $107.99
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.
SRAM X5 Front Derailleur (Low-clamp, Dual-pull) 9-speed
$32.99
SRAM's X-5 Front Derailleur features rugged steel construction that means years of great shifting with crisp, precise action. And, the dual-pull cable routing allows this to be used on almost any frame out there.
Shimano Deore M6020 Double Front Derailleur
$38.99 - $40.99
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
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 Tiagra Front Derailleur
$32.49 - $49.99
Shimano's Tiagra Front Derailleur provides quick shifting. The clear-coated aluminum body and plated-steel cage are extra durable so you can enjoy smooth shifts mile after mile.
Shimano Alivio Shadow Rear Derailleur (9-speed)
$54.99
Shimano's Alivio Shadow Rear Derailleur is built to withstand the rigors of off-road riding, with a lightweight aluminum body and low-friction pivots for incredibly easy and smooth shifting. And, the Alivio features 11-tooth pulleys, which alternate chain-link contact to reduce wear and smooth pedaling. • Cage Length: Long • Chain Wrap Capacity (teeth): 45 teeth • Color: Gray • Drivetrain Speeds: 9 • Largest Cog (teeth): 36 • Rear Der/Shifter Compatibility: Shimano Mountain • Rear Derailleur Mount Type: 10x1 Standard , Shimano Rear Direct Mount
Shimano Deore XT Shadow Rear Derailleur (Long Cage) (Top-Normal)
$94.99
Shimano's Deore XT Shadow Rear Derailleur is perfect for today's aggressive, all-mountain riding. The radical design means that the Shadow is super-low profile; it barely protrudes more than the quick release nut. Direct cable routing reduces the chance of the cable snagging on roots and rocks and fires off shifts super quick. A stronger spring keeps the body more stable when blasting through technical terrain at speed and yields a firm, crisp shifting feel. Plus, the redesigned bracket axle keeps the derailleur body from contacting your chainstay and reduces chatter so you just concentrate on the best line.
Shimano 105 5800 Rear Derailleur Pulley Set
$14.99
- Upper pulley has larger teeth for increased chain control
Shimano SLX Shadow Plus 11-Speed Rear Derailleur
$74.99
- Rider Tuned For Sharp And Silky Shifts - 20% Light Shifting Operation - New Shadow Design With Optimized Slant Angle - Optislick New Shift Cable With New Hyper Low-Friction Coating Technology - Chain Stability Improved - New Shadow Design With Optimized Slant Angle For Stable Gear Position - Efficient Shifting And Smoother Driving - Efficient Pulley Teeth Design - Increased Traction Range For Long-Travel And Active Rear Suspension - Series : SLX: SLX - Maximum Sprocket : 42T(2x11-speed) or 46T(1x11-speed) - Minimum Sprocket : 11T: 34-38T - Front Difference : 10T: 48.8 - Total Capacity : 41T: 66-69 - Average Weight : 323g: 145.6g
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.
Shimano Deore XT Front Derailleur (High Clamp)
$43.99 - $47.99
• 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 : High Clamp
Shimano Deore XT Front Derailleur (Low Clamp)
$43.99 - $47.99
• Increased traction range for long-travel and active rear suspension • Down Swing and Top Swing • Model Number : FD-M8025 • Series : DEORE XT • Swing Action : Side Swing • Cassette Compatibility : 11 • Maximum Capacity : Total capacity 10T • Top Gear Teeth : 34-38T • Cable Routing : Dual-Pull, Top-Pull exclusive • Chain Line : 48.8mm (compatible with the special crankset which chain line is 3mm outboard; the special frame is required.) • Chain Stay Angle : 66-69 • BB Mounting Plate : Low-Clamp
FSA Front Derailleur Shim
$3.99
- Correct fitment of larger 31.8Mm front derailleur to 28.6Mm seat tubes
Sunlite Front Derailleur
$4.99
- Bulk packed and poly bagged - Speeds: 5/6/7 - Max Tooth: 48 - Wrap: 20 - Swing: Bottom
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.
SRAM X7 3x10 Front Derailleur (Low Direct-mount, Dual-pull)
$39.00
SRAM's X7 Front Derailleur is stiff, light and strong. It provides crisp, precise action for fast, smooth and reliable shifting season in and season out.
Campagnolo Veloce Rear Derailleur (Medium-Cage)
$125.00
Campagnolo's Veloce Rear Derailleur uses an advanced-parallelogram design that assures precise and quick shifting. The aluminum construction reduces weight and boosts strength for crisp gear changes. Plus, the pulleys are made from a special material that renders the drivetrain nearly silent.
SRAM X0 2x10 Front Derailleur (Low Clamp, Bottom pull) 38/36T
$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. This 38/36T maximum chainring size version is the one you want if you are running a low-range double-ring setup.
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 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.
Campagnolo Record EPS Braze-On Front Derailleur
$580.00
A powerful punch in a tiny package! Boasting an optimised design and driven by the highest quality motors available today, the front derailleur moves the chain precisely in all conditions, even under strain. The result is a derailing speed like nothing you've ever seen before, with the chain shifting up and down from one chainring to the next with truly astonishing speed and precision. The body is made of Monolithic carbon, while the internal and external derailleur cage is composed of an aluminum/carbon mix to maximize stiffness and minimize weight. Plus the Magnetic Hall Sensor Resolver automatically trims the front derailleur to line up with the rear. - Derailleur capacity: 16T - Double or triple: Double - Drivetrain speeds: 11 - Max Ring (teeth): 55T - Compatibility: Campagnolo electronic Record/Super Record EPS - Waterproof to 1 meter for 30 minutes (IP67 rated) - Weight: 133g
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 Record Braze-On Front Derailleur
$170.00
Campagnolo's Record Braze-On Front Derailleur features an aluminum internal cage plate and an external carbon one for incredibly quick shifting and a sleek look. The super-light cage along with the aluminum body gives you one of the lightest front derailleurs you can buy. It's versatile too, working with both standard and compact cranksets. - Drivetrain speeds: 11 - Derailleur capacity: 16T - Max ring (teeth): 55T - Double or triple: Double - Only compatible with 2015+ Campagnolo Chorus, Record, and Super Record
MRP G3 Mini Backplates
$79.00
- Replacement backplates for MRP chainguides - Medium angle backplate models offer clearance for low chainstay frames such as VPP
MRP G2 SL Backplate
$73.50
- Replacement backplates for MRP chainguides - Medium angle backplate models offer clearance for low chainstay frames such as VPP
MRP 2x Dual Ring Chain Guide
$159.95
- Shiftable guide for SRAM and Shimano 2X cranks - Patented removable skid - Dual 9t sealed-bearing pulley design for superior chain management - BB, ISCG and ISCG-05 mounting options, 136g
MRP 2x Backplate
$84.00
- Replacement backplates for MRP chainguides - Medium angle backplate models offer clearance for low chainstay frames such as VPP
MRP S4 Backplate
$70.00
- Replacement backplates for MRP chainguides - Medium angle backplate models offer clearance for low chainstay frames such as VPP
MRP XCg Guard
$64.95
Utilizing MRP's patented integrated skid, the XCg tucks neatly behind your crankset and protects those costly chainrings from damage. The replaceable nylon skid glides over rocks and obstacles. - Two sizes, 32t and 36t - Great accessory to protect costly chainrings - Integrated skid protects chainrings and glides over rocks and obstacles - 88g (XCg V2 32t, ISCG-05 model)
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