Parts

Zipp’s Service Course SL-80 bars keep the drops close and within reach, and because they’re angled outwards by 4 degrees, your wrists remain in a strong, natural position. This lets you get low and aero without compromising comfort or control. Zipp left the transition from the tops to the brake hoods flat so you can ride comfortably, even in a more upright position. Stiff and light for uncompromising strength and climbing prowess, these aluminum bars are ready for anything.

- Designed specifically for use with 1x wide/narrow chainrings - Ultimate chain retention, ideal for rough and muddy conditions - Fits round and elliptical chainrings - Rigid and easy to adjust; no shims required - Chainline: High Direct: 48mm-54mm; Braze-On/Clamp: 45-51mm - Compatible chainrings: High Direct: 28T-36T; Braze-On: 34T-46T; Clamp: 28T-52T - Weight: 44g (Braze-On), 48g (High direct), 70g (Clamp)

Genuine replacement parts Genuine Trek replacement part to protect your eBike battery. Keep the dirt out. - For use with removable integrated battery system - For use with 625Wh Bosch RIB batteries

- Drivetrain Speeds: 11 - Chainring BCD: 110 Shimano Asymmetric - Material: Aluminum

Shimano's 105 Dual Control Left-Side Lever (Triple) is for use with a triple crankset and a triple front derailleur. Shimano's Dual Control levers let you shift and brake without ever taking your hands off the handlebars. The short-stroke shifting is so telepathic you'll be in the gear you want almost before you realize you shifted. Plus, the robust design offers excellent durability and the hoods are ergonomically contoured for top comfort.

The newly designed crank arms offer an optimized balance between lightweight and efficiency. The crank, formed with hollow aluminum technology, is anodized with a beautiful silky black finish, giving it a luxurious look. Compatible with 11-speed Chainring gear combination (not included): 50-34T, 52-36T, 53-39T Recommended chain (not included): CN-HG701-11, CN-HG601-11, CN-LG500 Recommended Bottom Bracket (not included): SM-BBR60 (threaded)/SM-BB72-41B (press-fit)

PD-R7000 NEW FEATURE - Carbon fiber reinforced resin pedal body - Wide contact area - 265g/pr (25g/pr lighter than PD-5800) BENEFIT - Optimum power transfer - Lightweight - Aerodynamic image - Color: CFRP - Average weight: 265 g - Road clearance: 31° - Binding: Single Sided - Cleat included: SM-SH11 - Optional cleat: SM-SH10 / SM-SH12 - Pedal Type: Road - Reflector: SM-PD65

Shimano 105 FC-R7000 asymmetric 110 BCD chainrings for 2x11 drivetrains.

The Shimano 105 R7000 mechanical brake Dual Control Levers bring quick and intuitive shifting and confidant braking in an affordable package. Features - Redesigned internal shifting unit - Greater reach adjust range - Easier access to inner shift cable - Quick and intuitive rear shifting operation - Reliable performance in race conditions - Lighter front shifting when paired with FD-R7000

Shimano BR-RS305 Mechanical Road Disc Brake Caliper - Cable actuated - Single Flat-mount caliper - For use with Drop-Bar or Flat-Bar road levers - L02A Resin Pads - Rotor not included - IceTech pad compatible caliper - Includes fixing bolts for 25mm thick mount - Brake Caliper Type: Flat Mount - Brake Lever Actuation: Short Pull Super SLR - Rotor Included: No - Pad Compound: Resin

Wide range cassette for varied terrain drop bar riding The 11-36T 12-speed cassette offers a wide gear range of 327%. From sprinting on the flats to steep climbs, you can choose the best gear ratio to suit every situation. Gear steps are optimized for pedaling efficiency, with the first eight cogs focusing on a natural and comfortable connection, and the largest four cogs allowing you to select from a wide range of gears while avoiding abrupt gear ratio changes. 11-12-13-14-15-17-19-21-24-28-32-36T GRX 105 CS R7101 / CS R7100 https://bike.shimano.com/en-US/product/component/grx-12-speed/CS-HG710-12.html

- 11-speed cassette sprocket - Tuned gear steps for maximum cadence control across the varied terrain of mountain biking. - Ride anywhere with smooth and precise HG shifting - Perfect for front single and double MTB drivetrains

- 12-speed cassette sprocket - HYPERGLIDE+ provides fast and smooth shifting - BEAM SPIDER construction cuts weights and boosts stiffness - New MICRO SPLINE freehub body and HYPERGLIDE+ tooth profile - 10-51T wide range 12-speed gear combination

The Shimano Claris ST-R2030 is a dual control brake/shift lever for Shimano 2x8 and 3x8 drivetrain applications. It features a reach adjust mechanism and Shimano's Super SLR friction-reducing technology. - Reach Adjust mechanism allows for the distance from the handlebar grip to the lever to be adjusted to suit any hand size or riding style - Super SLR technology improves braking response and modulation by reducing friction through the caliper, lever, and cable - The Dual Control Lever has both brake and shifting functions in the system to enable simple operation - Includes OT-SP41 cable housing to maximally reduce the inner cable friction for quick response to operations and effortless shifting

BL-M4100 - Intuitive and powerful braking - Quicker brake engagement with shorter free stroke - Rider tunable and action-optimized cockpit - High-performance brake control - Additional contact point for a stiffer brake lever - 10 deg. rotation angle setting range for I-SPEC EV shifting lever BR-MT420 - 90% braking power vs. BR-MT520 - 20% increase braking power vs. current 2-piston BR-MT400 - 150% better wear-resistance vs. current 2-piston BR-MT400 - Brake pad: resin, metal - Pre-assembled and bled brake lever and caliper, with SM-BH59-SS hose & mineral oil - Without rotor and adapter - One-way bleeding system

Shimano's Deore Crankset features efficiency and fast shifting to let you make the most out of the trails. Its smooth shifting rhythm maintains speed and acceleration over challenging terrain and provides optimized gear combinations and ratios for trail riding. Features: - HOLLOWTECH II Crankset (3x10-speed) - Efficient power transfer - HOLLOWTECH II crank arm with 4-arm construction - Composite chainring - Close step tooth profile for smooth shifting - Bottom Bracket compatibility: SM-BB52/BB-MT500-PA - Chain Line: 50

Shimano's Deore Shadow+ Rear Derailleur is loaded with mountain bike technology. The Shadow design tucks the rear derailleur closer in to the wheel, reducing damage from rocks, roots, and trail obstacles. When it comes to gear changes, Shimano's Dyna-Sys supplies consistent, smooth shifting across the entire cassette. And the Shadow+ clutch maximizes chain control by virtually eliminating chain slap and excess noise with its integrated cage-tensioning clutch. - Medium Cage (for 2x10 drivetrains) - Long Cage (for 3x10 drivetrains) - For use with Shimano 10-speed drivetrains - High-efficiency drivetrain for aggressive trail riding - Optimized gear combinations and ratios for trail riding - Maximum chain wrap capacity: 41T (medium cage)/43T (long cage) - Largest cog: 42T (medium cage)/36T (long cage) - Compatible with wide range cassette - Silent and stable for technical trail riding - Improved stability and chain retention longevity - Light shifting effort - OPTISLICK cable - Smooth and precise shifting - DYNA-SYS compatible system

• Steel construction on all but the largest aluminum gear • Nickel-plated finish for corrosion and wear resistance • Dyna-sys 11-speed cassette with "Rhythm step" gearing for closer gear ratios and smoother shifting performance • Fits Dyna-sys 11-speed and current Shimano 9/10-Speed MTB hubs • The largest cog (40t) is positioned inboard and above the drive-side flange • Hubs with tall drive-side flanges may not be compatible due to spoke interference

- 20% lighter rear shifts - Consistently stable shifting - RD new shadow design with optimized slant design - New shift cable with new hyper low-friction coating technology - Longer lever body - Anti-slip on main lever - Thumb Operation - I-spec II - Model Number : SL-M8000-I - Series : DEORE XT - Shift Lever Type : RAPIDFIRE Plus - Rear speeds : 11-speed - Front Shifting : Front Shifter Available - Instant Release : Yes - Multi Release : Yes - 2-way Release : Yes - Optical Gear Display : NO - Shift Cable Casing : OT-SP41 - Shift Cable : New low friction shift cable

- Large pedal platform - Lower platform height for pedaling stability - Robust retention claws provide smooth engagement and release - Customize the entry and release tension settings - Strong, durable chrome-moly spindle with 8 mm hex wrench mount - Sealed mechanism - SM-SH51 Cleat included - 1.0 mm cleat spacer included - Binding: Dual sided - Cartridge axle - Cleat retention adjuster - Average weight: 342g - Optional cleat: SM-SH56 - Pedal Type: Off-Road (SPD)

- Wide pedal-to-shoe contact - Lower platform height for pedaling stability - Integrated cage increases stability and control when not clipped in and protects binding mechanism against impacts - Robust retention claws provide smooth engagement and release - Customize the entry and release tension settings - Strong, durable chrome-molly spindle with 8 mm hex wrench mount - Sealed mechanism - 1.0 mm cleat spacer included - Binding Dual sided - SM-SH51 Cleat included - Cleat retention adjuster - Integrated cage - Cartridge axle - Average weight: 438g - Optional cleat: SM-SH56 - Pedal Type: Off-Road (SPD)

• 11-speed DynaSys compatible • Light Shift Operation With 20% Less Effort • Improved chain stability • Efficient Shifting And Smoother Driving • New Shadow Design With Optimized Slant Angle • New Shift Cable With New Hyper Low-Friction Coating Technology • New Shadow Design With Optimized Slant Angle For Stable Gear Position • Easy-To-Adjust Chain Stabilizer • Efficient Pulley Teeth Design • Direct Mount compatible

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.

The Shimano Deore XT Explorer Dual-Platform Pedals combine the efficiency of the SPD system and the convenience of a platform pedal, all in a lightweight package. - One side SPD, one side platform - Two-sided flexibility and performance - Ideal for trekking - Customize the entry and release tension settings - 392 grams - Concave cleat clearance on platform side - High-grip pins - Sealed cup and cone bearings

- Lighter And Intuitive Shifting Operation - Natural Front Shift Lever Stroke - More Ergonomic Power Curve - New Link (Toggle) Construction - Precise & Easy Front Derailleur Set Up - More Cable Routing Options - Integrated Cable Tension Adjustment - Link (Toggle) Construction For No Need Of Tl-Fd90 And Turning Converter Assembling - Adjustable Cable Tension On The Front Derailleur - Adapted For Race Specific Frame Design - Available Wider Front Gear Pitch - Shorter Length Of Rear Center With O.L.D. 135mm - Largest Chainrings (2x): 46-55T - Chain Stay Angle: 61-66 - Chain Line: 43.5mm

FC-RS500 Double Chainrings 11-Speed - Chainrings designed for the Shimano FC-RS500 crankset - Drivetrain Speeds: 11 - Chainring Bolt Circle Diameter: 110mm 5-Bolt - 50T

- Shimano, GRX FC-RX810 2x11, Chainring, Teeth: 31, Speed: 11, BCD: 80, Bolts: 4, Inner, Aluminum, Black - Shimano, GRX FC-RX810 2x11, Chainring, Teeth: 48, Speed: 11, BCD: 110, Bolts: 4, Outer, Aluminum, Black

With an integrated chain stabilizer mechanism, the GRX rear derailleur provides a quieter experience, shifting security, and precision on mixed terrain. For rides on smooth surfaces, the derailleur features an on/off switch for the chain tensioner. The RD-RX822 rear derailleur is compatible with MTB cassettes with a 42T low sprocket max. - GRX 12-speed rear derailleur for 1x cranks - Adjustable chain stabilizer prevents chain slapping and drops - Gravel-tuned clutch tension can be toggled ON/OFF to match the terrain - Maximum front difference: TBD - Total capacity: TBD - Low sprocket: Max. TBD - Top sprocket: TBD

With an integrated chain stabilizer mechanism, the Shimano GRX derailleur provides a quieter experience while delivering shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features an ON/OFF switch for the chain stabilizer. The RD-RX810 rear derailleur is compatible with road cassettes with a max cog size of 34T. - 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 - Low cog: Max. 34T/Min. 30T - High cog: Max. 11T/Min. 11T - Total capacity: 40T - Compatible with current road Dual Control Lever - Maximum front chainring range: 17T

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-RX812 rear derailleur 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 - Smooth and reliable mixed-surface shifting - Compatible with current road Dual Control Levers - High cog: Max. 11T/Min. 11T - Low cog: Max. 42T/Min. 40T - Total capacity: 31T

Shimano HG-800 11-speed cassette. - High-performance gear combinations provide superior rider choice - With hub body for MTB to fit a variety of bikes from MTB to road - Average Weight: 335 grams

The EXPLORER PD-ES600 pedals are designed for rides requiring frequent engagement and disengagement, such as city touring. Light action springs allow for easy entry and exit, making the new rider feel more confident. CLEAN APPEARANCE - The PD-ES600 features a clean appearance body for use on lightweight road touring bikes. EASY RIDER ADJUSTMENT - Easy-to-adjust entry and release tension settings. SYSTEM ENGINEERED TO WORK TOGETHER - SHIMANO RT footwear is designed to match the PD-ES600.

PD-MX70 FEATURE - Increased retention strength for the forceful pedaling of BMX racing. - Wide pedal-to-shoe contact area for more support and grip. - Lower platform and cage height for pedaling stability. - Integrated cage improves control when not clipped in and protects binding mechanism. - Adjustable entry and release tension settings. - Color: Black - Average weight: 414 g - Remarks: Higher retention force and narrower release angle than normal SPD pedals 1.0mm cleat spacer included - Binding: Dual Sided - Cleat included: SM-SH51 - Optional cleat: SM-SH56 - Pedal Type: Off-Road (SPD) - Reflector: SM-PD60

Shimano's PD-R550 SPD-SL Pedals offer wide, stable platforms for great support and stability when you're out on the road. An extra-wide platform maximizes power transfer. Durable stainless steel tread plates reduce flex and pedal body wear. Wide bearing placement provides uniform load distribution for miles and miles of riding. - 310 grams (pair)

The RS510 crankset features a 4-arm design that's light and stiff, providing high performance on a low budget. - For 11-speed drivetrains - Compatible with frames of O.L.D. 135 mm and 410 mm chainstay length - Affordable and high-end style crankset

The Shimano SLX CS-M7100 12-speed cassette is optimized with rider-tuned gear combinations for MTB excellence. - Advanced shifting performance provides the confidence to enjoy any trail - Light and stiff construction reduces cassette inertia resulting in faster acceleration and increased chain security - HYPERGLIDE+ technology provides better chain engagement, stronger retention, and smoother pedaling with greater power and confidence over rapidly changing terrain - Designed with a Shimano Micro Spline body that features smaller and more widely distributed splines to limit cog damage on freehub - The CS-M7100 cassette meets durability requirements for E-MTB applications - Cassette Body Type: Shimano Micro Spline - Drivetrain Speeds: 12 - Range: 10-45 - Designed for ebike: Yes - Color: Silver/Black - Defined Color: Silver

Genuine replacement part. This adapter charges some Shimano STePS batteries when the battery is NOT on the bike. COMPATIBILITY Used with these battery models: - BT-E6000 / E6001 / E6010 - EC-E6000 / E6002 / E8004

- Series: SORA - Shift Lever Type: STI - Front Shifting: 2 or 3 - Rear Shifting: 9-speed - Shift Cable Casing: OT-SP41 - Adjustable Reach: Yes - Brake Lever Actuation: Short Pull Super SLR - Cassette Spacing: Shimano/SRAM 9 - Color: Black

- Series: SORA - Crank Construction: 2-piece crank construction - Bottom Bracket: BB-RS500, BB-RS500-PB - Chain Line: 43.5 - 9-speed - Four-arm BCD

Right Shift/Brake lever, ST-4600, Tiagra 2X10-Speed

- Shimano, Tiagra FC-4700, Chainring, Teeth: 50, Speed: 10, BCD: 110, Bolts: 4, Outer, Aluminum, Grey, Y1RC98050

- Shimano, Tiagra FC-4703, Chainring, Teeth: 50, Speed: 10, BCD: 110, Bolts: 4, Outer, Aluminum, Grey, Y1RD98030

Shimano's Tiagra Front Chainwheel is sleek, balanced and consistent. The Tiagra 4700 series provides serious entry-level riding performance with trickle-down technology from the top shelf Dura Ace line. - Series: Tiagra 4700 - Crank Construction: 2-piece crank construction - Cassette Compatibility: 10-speed - Chain Compatibility: Series color - Bottom Bracket: BB-RS500 / BB-RS500-PB

The uninterrupted shifting experience of the Shimano Ultegra CS-R8100 12-speed cassette range lets you climb, sprint, or cruise without stopping to think about your next gear change. Larger driving cogs maximize drivetrain efficiency and create compatibility with both Shimano 11 and 12-speed freehub bodies. Shimano HYPERGLIDE+ technology is integrated to provide seamless shifts both up and down the gear range. - Refined 12 step gear combination provides peak efficiency and accelerating performance for every racing situation - Faster, smoother shifts under maximum pedaling force - Compatible with 12-speed and road 11-speed freehub body

FEATURES Front chainring type: Double COMPATIBLE MODEL FC-R8100, FC-R8100-P COMPATIBLE SERIES ULTEGRA R8100 Series PRODUCT SPECIFICATIONS SERIES: ULTEGRA R8100 Series Speed: 12-speed

- High-performance gear combinations provide superior rider choice - Hub body to fit a variety of bikes from MTB to road - Model Number: CS-HG800-11 - Series: Shimano - Average Weight: 335 grams

Shimano Ultegra R8000 Shadow rear derailleur. - Sleek integrated appearance - Low-profile design - Race endurance - Optimized slant angle - Wide compatibility - Short cage covers: 11-25T to 11-30T - Medium cage covers: 11-28T to 11-34T - Model Number: RD-R8000 - Series: Ultegra - Maximum Sprocket: 30T - Minimum Sprocket: 11T - Maximum Front Difference: 16T - Average Weight: 200 grams (short cage type), 210 grams (medium cage type)

Shimano Ultegra R8010 direct mount seat stay rear break caliper. - Direct mount brake - Direct brake mounts connect directly to the frame to reduce redundant parts and increase overall braking performance - Sleek design - Narrower gap between arms - Wider clearance with larger tire sizes - Compatible with wider 28C tire size - Model Number: BR-R8010-RS - Series: Ultegra - Brake Type: Direct mount type - Average Weight: 172 grams

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

The Deore XT M8100 hydraulic disc brake is designed to provide high performance braking for a variety of MTB riding styles. Includes the brake lever and disc brake caliper. - BL-M8100 features a stiffer brake lever design that provides added support for aggressive riding - Servo Wave Action technology means quicker brake engagement with shorter free stroke - The BR-M8100 2-piston brake caliper is optimized for cross country riding styles - Includes finned metal pads and hose - Brake Caliper Type: Post Mount - Hydraulic Hose Length: 1000mm (Front) / 1700mm (Rear) - Hydraulic Fluid Type: Mineral Oil - Rotor Included: No - Pad Compound: Metallic

The Shimano Deore XT RD-M8100/M8120 rear derailleur is designed to provide smooth and stable shifting for 12-speed MTB drivetrains. - Offers fast and shockless shifting - The low-profile design includes a bumper added to the derailleur pulley cage - Shimano Shadow RD+ technology reduces chain slap and creates a quieter drivetrain - Includes large, 13T pulley - Long cage is designed to be used with 1x12 drivetrain systems - Rear Derailleur Mount Type: Shimano Rear Direct Mount, 10x1 Standard - Drivetrain Speeds: 12 - Cage Length: Long - Chain Wrap Capacity (teeth): 41 teeth - Largest Cog: 51 - Weight: 284 g - Rear Der/Shifter Compatibility: Shimano Mountain

SRAM’s Apex 1 drivetrain provides the gear range and the shifting simplicity to let you simply go where you want. The Apex 1 rear derailleur makes that gearing choice a reality with clean, crisp shifts, thanks to SRAM’s X-Horizon geometry and their Roller Bearing Clutch. - X-Horizon design reduces shift force, eliminates ghost shifting and chain slap - Compatible with 10-speed and 11-speed SRAM 1x road systems - With Cage Lock technology, wheel removal and installation are easier than ever - Equipped with Roller Bearing Clutch - Large upper pulley offset automatically adjusts chain gap - Weight: 314 grams - Outer Cage: Steel - Compatibility: 10-speed and 11-speed SRAM 1x road systems - Inner Cage: Steel - Cage Size: Long - Max Tooth: 42t - Pulleys: Sealed cartridge bearings - Pull: Exact Actuation

When you need a lot of AXS batteries charged in a hurry, the Four Battery Charger is the tool you want. This USB-C powered charger will fill four batteries in the same time as a single charger, with charge time even faster if only one or two batteries are being charged. The fast charging feature gets the batteries to 75% extra quick, so if you’re rushing out the door, we have you covered. - USB-C interface for improved conductivity and broad compatibility - 60 minute charge time for four batteries, faster for one or two - LED lights indicate charge status and power draw - Benchtop or wall mountable design - SRAM Model ID: EP-EAC-BC4P-A1

SRAM's Apex DoubleTap Control Lever allows you to shift from the hoods, drops, and even when sprinting, so you can always select the perfect gear with ease. The single-lever-shifting design allows for fast, smooth shifts and is completely independent of the brake levers, eliminating the possibility of engaging the brakes when you shift. Plus, the ergonomic levers are incredibly light, aero, and hide all the cables for an ultra-clean look.

The SRAM CenterLine XR (CLX-R) rotor works in tandem with the SRAM eTap AXS drivetrain. It's designed specifically for road riding — and to keep braking quiet at every stop. - Streamlined form optimized for road use - CenterLine track offers quiet brake operation - Two-piece design reduces weight

Intense study of chain and chainring wear patterns led to the radical tooth profile that lasts longer, runs quieter and further improves chain retention. Oval ring shape for riders that want to adjust the power profile of their pedal stroke. - The only oval rings with X-Sync 2 tooth design - Direct Mount Type: Direct Mount SRAM - Drivetrain Speeds: 10, 11, 12 - Material: Aluminum - Ring Position/Type: Chain Retaining Single Ring - Round or Oval: Oval - Chainline/Hub Compatibility: 141/148 Boost Hubs

SRAM's Force WiFli Rear derailleur is made for wide-range 2x10 systems. Its long cage can handle an 11-32 cassette! You get the huge gear range of a triple with reduced weight and better shifting. Of course, the WiFli still uses SRAM's renowned Exact Actuation technology for precision shifts every time. Plus, the Force is crafted with cutting-edge materials, such as a super-light carbon cage and a magnesium inner link for feathery low weight, flawless shifting and reliability.

- REAR DERAILLEUR PULLEY KIT FORCE XPLR AXS STEEL BEARING (INCLUDES 12T UPPER AND 12T LOWER PULLEYS, 12.5MM AND 12.9MM STEEL PULLEY SCREWS) - SRAM Model ID: RD-SPP-A0

Force eTap AXS Rear Derailleur Pulley Kit - Steel bearings - 12-Speed

SRAM's GX 1x11 X-Horizon rear derailleur is engineered for smooth, reliable shifting action—from the larger upper pulley offset to the 12-tooth X-Sync pulley wheels. By eliminating unwanted chain movement, this X-Horizon rear derailleur shifts faster, puts an end to ghost shifting, and reduces shift force and chain slap. And with Cage Lock technology, wheel removal and installation are easier than ever. • Long cage • X-Horizon design reduces shift force, ghost shifting, and chain slap • 12-tooth X-Sync pulley wheels • Large upper pulley offset automatically adjusts chain gap • Sealed cartridge bearings • Aluminum Cage