Parts

Comfort without sacrificing power Aeolus Elite brings comfort, power, and speed to road riders looking to dig deep and rotate further forward into a more aero road position. It's the go-to race saddle for both men and women who want to comfortably get the most out of their aero road bike. A shorter overall length with a wider nose and full cut-out ensure targeted support that eliminates soft-tissue pressure. Product details - inForm saddles are born of cutting-edge biomechanical research to maximize performance and rider comfort - Designed to support riders in an Aero Road riding position - Full saddle cut-out minimizes soft-tissue pressure allowing for a more powerful, rotated position - Two sizes designed to align saddle with bone structure for both men and women and avoid soft-tissue compression - Austenite rails are lighter and stronger than hollow Titanium - Lightweight shell provides balance of weight, strength, and compliance - Elite-level trim optimizes foam padding for added lightweight comfort - Available Blendr accessory mounts to cleanly integrate rear light

The Bontrager Boulevard saddle pairs a full cut-out with sleek styling that looks great while also providing a plush comfortable ride. Details like air foam padding and Zone Density shell construction provide the perfect blend of comfort and support, while an integrated handle makes it easy to lift and maneuver your bike before or after a ride. Key features - City saddle that offers support for comfort and recreational riders with upright on-bike positions - Contour Relief Zone Plus (CRZ+) full saddle cutaway enhances soft tissue protection - Zone Density shell construction adds compliance for optimal comfort and performance - Soft, supportive air foam padding provides ultimate on-bike comfort - Includes integrated bolt-on handle installed - Length: 280mm

The classic Oury feel updated with lock-on from ODI. Bonus pack includes snap-caps and Lock Jaws. - Made by ODI - Snap-caps and Lock Jaws included

Bar end plugs (2)

Shimano Claris front derailleurs offer, smooth easy shifts and are compatible with dual-control road shifters as well as flat-bar style Rapidfire Plus shifters.

Recommended for grip shift and riders looking for the best shock absorbing grip in the industry. 60 grams, standard grip length - 5 1/8", installed DIA. 32mm, weight plus or minus 5%, 1 set of bar plugs included. - 60 Grams - Standard Grip Length – 5 1/8" - 32mm - Weight plus or minus 5% - Made for 22mm bars (can fit applications down to 19mm) - Bar Plugs included - *Install Bar Plugs first for the protection of grips and ease of installation

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.

Get back on the road with a quality replacement hanger. - Attachment hardware is sold separately - For specific compatibility concerns, please contact our Customer Service team Specifications: - Size: Rear drive side, 135mm Q/R - Mounting location: Rear drive side - Attachment: 2-bolt

Made with recycled materials, this lock-on grip with a unique tread pattern and thick profile adds comfort and control on technical trails. Lock on to the trail Confidently handle any trail with the SE Elite Recycled Grip made with recycled plastics in the core. This lock-on grip uses clamps to secure the core for a tight hold in any terrain, while a unique opposing tread pattern provides the perfect amount of traction and padding for your palms. Using recycled materials in this product helps provide second life to unwanted end of life plastics. Product details - Grip core is made from recycled plastic - Opposing tread pattern absorbs shock in palms and increases grip at fingertips - Rubber compound provides confident grip, control, and comfort - Tread features continuous channels to funnel sweat for effective moisture management - Single-clamp design maximizes grip surface for secure, predictable performance - Core-lock clamp eliminates slipping by securing grip core to bar - 3mm M4 bolt increases hold and resists stripping - 32mm diameter - Length: 130mm - Weight: 115g Features: The net effect Fishing nets make up an estimated 10% of all plastic in the ocean. What's even worse is that they're 4 times more harmful to the ocean environment than all other forms of plastic pollution. A global issue Each year 18 billion pounds of plastic enters the ocean, polluting beaches and waterways around the world. Better products for a better planet We're committed to lightening our footprint and designing for circularity wherever possible. This product and others contain recycled material and are made using planet-friendlier manufacturing processes.

An integrated bar and stem combo that cleanly and securely holds cables for a refined look and added aerodynamics. Save watts, ride faster This aero upgrade cleans up your cockpit by securely storing cables for a refined look and free speed. The Aeolus RSL bar/stem combo is proven in the wind tunnel to save 7 watts, making it 10% faster than its predecessor. It's light, fast, easy to install, and Blendr-compatible for seamless integration of your light or Garmin. Details: - OCLV Carbon construction is ultra-light, compliant, and durable - Integrated bar/stem design improves aerodynamics and saves weight - Proven in the wind tunnel to save 7 watts, making it 10% faster than its predecessor - Integrated cable management system held secure with M4 hex bolt, 5Nm torque - Variable Radius Compact (VR-C) design allows longer reach and drop - Includes Blendr mono and duo bases with mounts for Ion light and Garmin computer - Approved for use with carbon or alloy steerer

SRAM's PC 830 Chain offers accurate shifting, excellent durability, and superior power transfer for 8-speed drivetrains.

Replacement handlebar display unit specifically for your Townie GO! 7D bike. Product details: - 22.2mm handlebar mount - Compatible with Townie GO! 7D only

Shimano Deore XT RT-MT800 Center Lock disc brake rotors feature an advanced heat-dissipating design. - Rotor construction uses Shimano Freeza technology to boost heat dissipation and reduce fade - Quick and easy installation with spline mount and lock ring (included) - Compatible with metal and resin pads

An aluminum handlebar with IsoZone pads that displace vibration and a compact flare that increases wrist clearance. Goodbye, chatter Ready to ditch the wrist fatigue that accompanies rough road rides? IsoZone foam pads are integrated directly into the tops of the alloy Elite IsoZone bar for a 20% displacement in vibration. Features Di2 compatible ports for clean internal wire routing when integrated with Shimano EW-RS910 bar-mounted Di2 junction. Soak up the chatter and ride on in comfort while enjoying a better looking cockpit. Product details - Custom-butted, 6066-T6 alloy construction - Confidently access brake levers while in the drops with our VR-SF shallow, flared drop and shorter reach design - Compatible with Shimano EW-RS910 bar end Junction-A for cleaner Di2 routing - Compatible with clip-on aero bars - Shot-peened finish increases fatigue life - Laser-etched brake lever position lines for spot-on control set-up

- Clamps to a threadless steerer, offers up to 3-1/4" stem height increase - Forged 6061 aluminum - Threaded alloy top cap

SRAM's PowerGlide PG-820 Cassette is a fine 8-speed cassette. It features steel cogs with SRAM's DuraBlast technology for smooth, precision shifting and excellent durability.

Bontrager's SSR Grips are made from a dual compound: the hard inner core eliminates slippage on the bars, the soft outer layer provides great grip and all-day comfort in any condition.

Shimano's Ultegra 10-Speed Cassette delivers pro-level shifting and durability. The computer-enhanced tooth shapes and tough cogs mean you can shift quickly, precisely and smoothly even under pressure.

The Cambium C17 All Weather Carved is made for years of hard riding in an angled riding position, and features a hole for pressure relief and additional flex, eliminating contact points which cause discomfort for some riders. With the same contemporary design of the Brooks Cambium range, the All Weather is a durable and comfortable saddle that is “ready to ride”, thanks to a vulcanized natural rubber top for flexible performance requiring no breaking in period. From freezing rain to blazing sunshine, the waterproof, weatherproof nylon cover is made to perform flawlessly in all conditions. Additionally the updated fiberglass reinforced back plate has loops for a saddle bag or other accessory.

The perfect fit The Bontrager Elite Blendr Stem provides easy solutions for accessory integration. This alloy stem is light and strong, and it gives you endless options to integrate lights, a computer and more with Blendr accessory integration. Product details - Blendr Elite allows seamless accessory integration - 4-bolt dual band clamp retains stiffness and reduces weight - Opposing 2-bolt steerer tube clamp - Uses M5 countersunk, corrosion-resistant steel bolts with 5.2Nm torque spec - Approved for carbon bars and steerer tubes - Suitable for both MTB or road use - Includes Blendr mono base and accessory mounts

A fitness saddle with a patented fluid technology that moves freely with you as you pedal for less pressure and more comfort. Bontrager's Commuter Fluid Saddle moves with you to reduce pressure on fitness rides and commutes. The patented fluid technology performs better than standard gel—and it's paired with air foam and a full cutout for soft tissue protection and support. Plus, you can easily attach a Flare tail light to the rear-facing Blendr mount! Product details - Fluid adds comfort by moving with you as you pedal to alleviate pressure - Fluid is better than gel at reducing pressures, showing an average reduction of over 20% in peak pressure compared to gel alone - Full cutout provides targeted support and soft-tissue relief - Dual-density shell and air foam construction is soft yet supportive - Blendr attachment allows for integrated rear light mounting - inForm saddles utilize the latest in biomechanical research to maximize performance and rider comfort - The Unconditional Bontrager Guarantee offers 30 days to love it, or we'll take it back

Platform pedals with a durable nylon design and replaceable pins for consistent grip. - Durable nylon body with a proven shape for comfort and confidence - Virtual concave design with pin placement secures your shoe for pedaling and descending - Durable axle spins on sealed cartridge bearings - Replaceable steel traction pins - Install with 8mm hex wrench

- Size: 10.5" long x 10.5" wide - Padding: Multi-stage foam - Anatomic relief design - Suspension: Coil spring - Use: Cruiser - Rail: Steel

When it's time to replace your old 8-speed cassette, check out SRAM's PG-850. Its steel construction and SRAM's PowerGlide technology combine to deliver miles of solid shifting and outstanding durability.

Zipp's Service Course Cyclocross Bar Tape boasts extra padding for excellent cushioning and an exceptional grip. This classy wrap is embossed with logos for a custom look and includes end plugs and finishing-tape strips.

Electra's Ergo Grips feature supportive curves and cool stitching. With these stylish grips on your favorite rig, your hands will stay comfortable all ride long.

Shimano's M520s are affordable clipless pedals that are easy to enter and exit, and built to last. They boast dual-sided Shimano SPD bindings, which make them perfect for mountain bikers or roadies who prefer wearing walkable shoes with recessed cleats. The bindings are adjustable for dialing in the perfect entry and exit tension, and they have an open, mud-shedding design that prevents clogging. Chromoly axles and sealed bearings add tons of durability. - 380 grams (pair)

A gravel handlebar with a wider flare that gives riders more comfort and control through any terrain. The bar with a flare for adventure The GR Elite Road Handlebar is a lightweight alloy bar designed to give gravel and adventure riders more comfort, control, and confidence, especially when in the drops. IsoZone EVA pads deliver entire-ride comfort, while the bar's 75mm reach, 128mm drop, and 13-degree flare make it easy to access brake levers and shifting controls from all riding positions. Product details - 13-degree flare allows for more control in the drops - Custom-butted, lightweight 6061-T6 alloy construction - Shorter reach and wider flare allows for confident handling and easy access to controls - Replaceable IsoZone EVA pads add comfort while maintaining original grip diameter - Compatible with Shimano EW-RS910 bar end Junction-A for cleaner Di2 routing - Laser-etched brake lever position lines for spot-on control setup - Compatible with clip-on aero bars

Elegant style meets incredible weight savings with the XXX Cable and Housing set. It's time to take your road machine to the next level. Linked alloy housing is up to 40% lighter than traditional alternatives, while also being more flexible and incredibly smooth for class-leading performance. Product details - This lightweight, flexible, and elegant kit is perfect for the demanding rider - Compatible with Shimano and SRAM drivetrains - Ultra-low-friction cables are both 2300mm long, for front and rear shifting - XXX housing features Pro lube and is lighter, more flexible, and stiffer than standard - Kit includes XXX shift ferrules, Pro Inline Cable Tension Adjuster, frame protectors, and cable end caps - For installation instructions, visit: trekbikes.com/manuals - Included stainless steel cables are rust-proof and come pre-stretched

A fitness saddle that combines a full cut-out with air foam and a dual density shell for comfort and support on every ride. The Commuter Comp saddle offers the comfort of a full cutout saddle with the support of a saddle designed specifically for commuters and fitness riders. A durable, weather-resistant cover material protects the dual density shell and air foam construction of the saddle for long-lasting comfort wherever you ride. Plus, a simple integrated Blendr mount makes it easy to add a Bontrager Flare rear light. - Fitness Posture 4 features an upright pelvic rotation to go farther, faster - Contour Relief Zone Plus (CRZ+) full saddle cutaway enhances soft tissue protection - Dual-density shell and air foam construction is soft yet supportive - Tough, weather-resistant cover repels water - Blendr attachment allows for integrated rear light mounting

Super tacky (in a good way) Confidently ride in all conditions with the no-slip grip of our Perf Line Handlebar Tape. This tape adds an extra layer of comfort with shock-absorbing foam, and keeps your bike looking classy and sleek with perforated details and a thinner profile. Handlebar tape with extra-tacky texture, classic perforation, and a thinner profile that lends a better grip on road rides. - Super-tacky texture offers a no-slip grip - Classic perforated styling adds texture and looks clean - Ideal stretch allows quick and easy installation - Shock-absorbing foam elevates comfort - Finishing strips and reflective Bontrager bar end plugs included - Adhesive backing simplifies installation - Thinner profile for a sleek look

Key features: - Cable actuated remote lever for the Bontrager Drop Line dropper seatpost - Also compatible with most other cable-actuated dropper seatposts - Under Bar Lever is designed to ergonomically replace the left shifter on 1x drivetrains - Universal Lever is compatible with 1x, 2x, 3x drivetrains and left or right hand placement - Use with: Drop Line Seatpost

Get back on the road with a quality replacement hanger. - Attachment hardware is sold separately - For specific compatibility concerns, please contact our Customer Service team Specifications: - Size: Rear drive side, 135mm Q/R - Mounting location: Rear drive side - Attachment: 2-bolt

Key features: - Original equipment replacement saddle ears for use with Bontrager saddles with carbon rails - Compatible with Bontrager and Trek rotary head seatpost and seat mast systems - Consult with manufacturer on compatibility with other saddle brands

Clean up your Bontrager Elite stem cockpit with Blendr Elite bases. Blendr works with this simple formula: Stem + Base + Mount. Add accessory. Key features: - Bases for use with Elite stem - Add any XXX accessory mount for an elegant integrated look

Campagnolo is all about drivetrain evolution, and their Chorus Crankset proves it. The full-carbon cranks and 4-arm spider feature a unified bolt pattern that allows for all three chainring standards. This design incorporates an 8-bolt pattern with a spider arm that not only holds the chainring in place by way of the bolt, but also supports the chainring to increase system rigidity. The crank arms and spider are hollow for maximum stiffness and minimal weight. The integrated Ultra-Torque spindle joins the crankset together via a toothed Hirth joint in the center. - Chainring BCD: Campagnolo 146 Asymmetric, Campagnolo 112 Asymmetric

SRAM's Force 22 Front Derailleur gives you the freedom to shift with incredible speed into either chainring. Experience precision shifting with YAW technology that allows the cage to rotate to better align with the chain and eliminates the need for shifter trim. An integrated chain spotter is included for seriously bumpy roads and cyclocross action. Paired with SRAM's X Glide R chainrings, unmatched front shifting will be the norm on your bike.

Designed for the next generation of drivetrains—and the next generation of riders. The SRAM Force XG-1270 cassette is optimized for electronic shifting and features our X-Range gearing technology. Smooth, precise shifts, from 10T on up. - X-Range gearing gives you more range and a smoother gear progression, so you’re always in the right gear - MINI CLUSTER construction reduces weight and increases durability - Designed to work with an XDR driver body Cogs: - 10-26T: 10, 11, 12, 13, 14, 15, 16, 17, 19, 21, 23, 26 - 10-28T: 10, 11, 12, 13, 14, 15, 16, 17, 19, 21, 24, 28 - 10-33T: 10, 11, 12, 13, 14, 15, 17, 19, 21, 24, 28, 33 - 10-36T: 10, 11, 12, 13, 15, 17, 19, 21, 24, 28, 32, 36

• High performance compounds recommended for all-conditions • Steel backing

The Problem Solvers Braze-On Front Derailleur Adapter simply clamps onto your frame's seat tube and provides a secure place to bolt on your braze-on front derailleur (sold separately). This fine adapter is made of light, durable aluminum and includes a stainless-steel bolt.

Shimano chainrings offer durability and confidence-inspiring performance, and go a long way towards getting a drivetrain back to optimum working condition.

FSA's K-Force OS-99 CSI is 3-D forged and CNC machined from AL2014 before a uni-directional (UD) carbon weave skin is applied through the Carbon Structural Integration (CSI) process. To further reduce weight the OS-99 uses a 4-bolt sculpted AL2014 alloy/carbon faceplate and titanium hardware. CSI is a process that permanently bonds carbon to alloy, to create a true hybrid product, with many of the benefits of aluminum and carbon. - Stack Height: 41mm - Weight: 126g (100mm)

Origin-8's SPD Cleats are compatible with Shimano SPD-style pedals. These cleats are single release.

To keep your Avid brakes functioning properly, check your pads for wear and replace them when necessary. Organic compound pads are softer for quieter braking and increased modulation, while metallic pads dissipate heat better and last a bit longer. Two pads, one retraction spring and a mounting bolt are included (enough for one brake) in each pad set. And, choose an aluminum backing plate if you're really counting the grams.

Shimano ST-EF500 shift/brake lever provide an ergonomic, integrated solution for both brake and shifting controls. - Optical gear display - Adjustable reach - 4-Finger lever, compatible with cantilever, roller, linear-pull, and mechanical disc brakes

Shimano Dura-Ace 9000 11-Speed Chainrings. - Chainring BCD: 110 Shimano Asymmetric - Color: Silver/Black - Defined Color: Silver - Drivetrain Speeds: 11 - Material: Aluminum - Ring Position/Type: Outer

Key features: - Adapter to fit Bontrager Race Lite Ergo Bar Ends to Bontrager Satellite Plus IsoZone Handlebars - Only compatible with the Bontrager Satellite Plus IsoZone Handlebar - For most other bar ends, use: Bontrager Satellite Plus IsoZone Bar End Adapter

Optimized for Shimano compatible 9-speed road drivetrains, R9 front derailleurs feature metal construction and rapid shifting response. - Cold-forged aluminum body

Avid makes it easy to get a perfectly set up brake with their innovative CPS Hardware Kit. Each kit features a series of washers that make it easy to set up your brake. Step 1: Install the bolts and washers loosely so the caliper can move. Step 2: Squeeze the brake lever. Step 3: Tighten the bolts. It's that simple to get a rub-free setup! This kit includes stainless steel hardware with washers and bolts for both CPS (Caliper Positioning System) mounting and standard (direct-mount)mounting.

Race Face Next SL Direct Mount Chainrings • 7075-T6 aluminum, aerospace grade strength • Compatible for 9, 10, and 11 speed • Narrow Wide tooth profiling ensures ultimate chain retention • Attaches as part of the Race Face CINCH system (using tool TL6800) allowing you to switch between Direct Mount rings/spiders with ease • Utilizes Race Face proprietary spline design • Stiff 4mm plate thickness to transfer loads without flexing • 41 grams (26T) ranging up to 82 grams (36T) • Compatible with Race Face cranks with CINCH system interface

With optimized material concentrated at the brace and seal area, outstanding stiffness and steering precision, and new E-MTB configured fork options with fender mounting points, Recon Silver is an all-around performer suited for any MTB or E-MTB bike. Features - New E-MTB endorsement options with fender mounts are appropriate for all E-bikes (15x110mm version) - New graphics are easy to read and make a fresh impact - Motion Control damping featuring low-speed compression adjustment to lockout - Fit Tires up to 2.8" (15x110mm version without fenders; the use of a full fender will reduce tire clearance) - Fast Black finished 32mm steel upper tubes couple stiffness with a premium look

Looking for a 1X chainring for your Shimano compact triple crankset - models M782, M672, M622, or M612 – with the proven chain retention of our Drop-Stop® chainrings? Wolf Tooth has what you need in this beautifully machined chainring with threaded standoffs that proved and ideal chainline. - Fits any 96 BCDShimano Symmetric 4-bolt crankset - Drop-Stop technology. On Wolf Tooth’s patented wide/narrow chainring, the wide side of the tooth has maximum contact on the drive side which spreads the load and improves chainring life. The narrow side allows clearance for mud and debris which reduces friction. - Alternating wide/narrow tooth pattern prevents chain derailment Compatibility: - These rings fit any 96 BCD Shimano Symmetric bolt pattern crankset, and here are instructions on how to measure your BCD. - Compatible with the following Shimano crankset models: M782, M672, M622, M612 - Not compatible with XTR M9000 or XT M8000 - If using a 9-speed drivetrain use a 10-speed chain (shifts and works well on a 9-speed drivetrain and fits the ring tighter for better chain retention) - Chainline - 49mm. Provides a great chainline on most boost bikes. Use Drop-Stop A or B for all 9, 10, and 11spd chains or 12spd SRAM Eagle, KMC, Connex or Wippermann chains DROP-STOP A - Wolf Tooth Drop-Stop A is the original patented wide/narrow chainring compatible with multiple drivetrain brands including 9, 10, 11, and 12spd SRAM Eagle, KMC, Wippermann, etc. - NOT compatible with 12spd SRAM Transmission (T-Type) Flattop, 12spd Shimano HG+, or 12spd Campy Recommendations - If you plan to ride in very muddy conditions, we recommend a chainguide or chainkeeper in addition to a clutch-type rear derailleur. Without these precautions, you may experience chaindrops and/or chainsuck. Tech Specs: - Weight: 30/41g | 32t/50g | 34t/59g - Material: 7075-T6 aluminum - Made in the USA

With bigger bikes come bigger demands. The new Domain takes cues from ZEB, our enduro specialist fork with serious credentials. Domain offers a new burly 38mm chassis, short fender compatibility, and a confidence-inspiring DebonAir air spring matched with a reliable Motion Control RC damper. We even brought the performance of Maxima Plush damping fluid along for the ride. Nothing goes as big as Domain does in value and performance. - 38mm chassis for increased stiffness and rider confidence - Motion Control RC damper featuring low speed compression adjust with externally adjustable dual-flow rebound - Highly tunable DebonAir air spring offers a consistent feel throughout the travel - Maxima Plush damping fluid reduces friction and quiets damper noise - Short fender compatible. RockShox premium fender sold separately. AM Variants include RockShox zip-tie fender - Fits tires up to 2.8" without fenders—use of any fender may reduce tire clearance

The 1999 Sidepull Brake is a lightweight brake kit for BMX. - Includes brake, lever and cable - Reach is 66-90mm

Shimano's Ultegra bottom bracket uses Pro Tour-proven technology for lighter weight and super smooth spinning, while still maintaining the same level of durability and stiffness. It's available in English, Italian, or Press Fit models.

SRAM's 1050 10-Speed Cassette is a great choice. It's constructed of light and durable materials and boasts SRAM's PowerGlide tooth profiles and shift ramps for quick and positive gear changes every time. This trick cassette also sports a semi-spider construction for a maximum stiffness-to-weight ratio and is available in myriad configurations to suit all your riding. There are even models with 36-tooth largest cogs for super-easy climbing.

Shimano Deore M6000 CS-HG500-10 10-speed cassette. Combinations: - 11 – 25T: 11-12-13-14-15-17-19-21-23-25T - 12 – 28T: 12-13-14-15-17-19-21-23-25-28T - 11 – 32T: 11-12-14-16-18-20-22-25-28-32T - 11 – 34T: 11-13-15-17-19-21-23-26-30-34T

Kalloy's 602 seatpost comes in a wide variety of diameters to fit most frames. Simple, sturdy, and lightweight, the 602 makes a great replacement seatpost.

Strong, light, and capable The Kovee Pro 35 stem is the perfect centerpiece for cross country race bike. This lightweight stem is optimized for the latest XC mountain bike standard, with a 35mm clamp diameter that combines with a 35mm handlebar to provide a stronger, lighter system. An oversized 35mm clamp diameter MTB stem that offers increased strength and minimal weight - Oversized 35mm clamp diameter offers increased strength and minimal weight - 7075 T73, 3D, forged alloy construction - Laser-etched calibration marks make dialing in the perfect angle simple and repeatable - Compatible with both Knock Block and standard headsets and spacers - Blendr compatible for an elegant, integrated accessory mounting solution - Available in a wide range of sizes for today's mountain rider - High-strength, corrosion-resistant steel bolts - Approved for carbon bars

The SRAM DUB bottom bracket series has a simple job— to connect crankarms and protect the smooth, long-lasting application of power to the drivetrain. SRAM engineered the oversized DUB spindle to work across every bottom bracket standard, simplifying crankarm compatibility. - Gutter Seal Technology drastically improves sealing against the elements - Sealed cartridge bearings - One oversized spindle to work across every bottom bracket standard - Significantly lighter than GXP system