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The Turbo Tero means one thing: you're going to need a bigger map. With ride anywhere range, this adventure-ready suspension electric bike is our go-anywhere, over anything, with everything vehicle. Plus, with enough storage space to pack in a few backcountry comforts, you'll discover new adventures easier than ever. The only question left to ask is where to? Looking for a commuter you can take touring? A touring bike that can haul cargo? This is it. In a word, the Tero is unstoppable. Off-road capable wheels and tires, powerful hydraulic disc brakes, and a full-on suspension fork can transform every ride into an adventure, whether you're on dirt roads or cruising through the concrete jungle. POWERFUL: It's you, only faster. The Turbo Full Power system senses the force you apply to the pedals and amplifies your effort up to four times for an experience that makes getting up any hill or to any destination no sweat. Literally. COMFORTABLE AND CONFIDENT: Both body position and handling are optimized to deliver everything the rider needs: comfort, confidence, and control. Reign in your speed with hydraulic disc brakes and stay in control with larger tires that offer more traction for turning and stopping on any terrain. TURBO: The heart of the Tero is its Turbo technology. The advanced and integrated electric bike system delivers an unequaled combination of power, natural feel, anti-theft functions, training tips, a full-function bike computer, and more. SECURE: Tero has anti-theft on lock. Thwart would-be bike thieves by disabling the motor with a press of a button so nobody can turn the motor back on without your personalized pin. For additional protection, lock the battery in the bike or take it with you to make bike thieves miserable. SILENT: Turbo Full Power Motor provides smooth, quiet, and seamless amplification for a quiet ride on any terrain. The speed limit at which the motor will stop supporting may vary significantly by region and is based on local requirements. It may also affect range: a higher speed limit may result in less range. - Long-Range - With a ride-anywhere range, go up to 68 miles (110 km) or 5 hours on a single charge (eco mode). - Fender, Rack, and Kickstand mounts. Rated to pull a thru-axle trailer. Child seat compatible. - Specialized app and MasterMind- Specialized app allows you to tailor Tero's power output levels to your desired preference—all three standard power modes can be almost infinitely adjusted to suit your power and range needs. MasterMind's MicroTune function can adjust power output levels in 10% increments so that you can tune the range to suit your needs. - Mountain Bike DNA- Tero's componentry is tailored to enhance control and confidence. Aggressive but smooth rolling 29" wheels with 2.3" Ground Control tires offer ample traction in every situation, SRAM disc brakes deliver substantial braking bite, 110 mm of front suspension travel smooths the trail. - Turbo System Lock - Use the Specialized app to disable your bike's motor and activate the motion sensor alarm. Once locked, the motor cannot be enabled again except by the owner. - Turbo Full Power 2.0E Motor and 530 Wh Battery- Integrated into the aluminum frame of the Tero 3.0, they effectively quadruple your own power, cranking out ample wattage to make short work of the steepest climbs and providing enough extra muscle to let you carry a mountain of adventure gear, groceries, kids and daydreams without breaking a sweat. It's you, only faster. But what really sets this motor apart from the rest is how efficiently and seamlessly it melds with your own efforts.

Domane RSL (Race Shop Limited) Frameset is an ultralight carbon endurance road bike frame that gives you the freedom to build your dream race machine. Designed for speed on even the roughest cobblestone courses, this is the frame of choice for pros racing Paris-Roubaix. Its refined rear IsoSpeed and aerodynamic improvements help to elevate comfort while letting you get the most out of every watt you put in. IT'S RIGHT FOR YOU IF… You want to build up an ultralight carbon endurance road bike with a more aggressive race geometry. You crave extra Domane's legendary road-smoothing comfort and speed. THE TECH YOU GET An ultralight and refined 800 Series OCLV Carbon frame and fork with rear IsoSpeed. Aggressive H1.5 race geometry. Designed for flat-mount disc brakes and includes a headset and a full carbon Domane RSL disc fork. 35mm tire clearance. THE FINAL WORD The ultimate endurance race bike frame lets you crush cobbles and rough road terrain like the pros. This frameset is perfect for avid racers that want both road-smoothing comfort and a faster riding position. WHY YOU'LL LOVE IT - Domane RSL Gen 4 is an insanely light endurance road frame with Kammtail tube shapes, 800 Series OCLV Carbon, and rear IsoSpeed that come together for an ultra-fast and ultra-comfortable ride - Domane H1.5 geometry puts you in a more aggressive racing position while maintaining stability - Longer wheelbase for precise tracking on rough roads - Road-smoothing IsoSpeed absorbs fatiguing bumps in the road for a faster, smoother, more comfortable ride

- Colored rim decal kits to personalize your ride - Decals to fit 2 100w 26-inch rims

Cotton Tall Socks - 7" cuff height (size Medium) - Fabric Content: 100% Cotton - Lightweight underfoot cushion adds an extra buffer to trail or road vibration, which also combats friction and hotspots over the course of a ride. - Mesh construction at top toe area allows for extra ventilation. - PowerBand mid-foot arch supports the foot and secures the shape and fit where the foot needs it most.

Whether you’re waiting at the meetup spot or suiting up for the descent, our Women’s Packable Down Jacket is built for the coldest parts of the ride. ALLIED Feather + Down Fill and PrimaLoft Bio combine to create lightweight insulation that keeps you warm when you need it to but packs small when it’s time to stow the cycling jacket in a jersey pocket. To help block the chill when temperatures drop, a roomy hood fits over your helmet to lock in the heat. The semi-form fit makes it easy to layer over your other cold weather gear. - ALLIED Feather + Down Fill is blended with PrimaLoft Bio to create a sustainable synthetic insulation that’s packable, lightweight, and warm. - An over-the-helmet hood keeps your head protected from the elements. - Fabric Content: SHELL A: 100% Nylon - FILL/INSULATION A: 90% Down, 10% White Goose Feather, 800 Fill Power - FILL/INSULATION B: 100% Polyester PCR with Bio Staple Cut Fibers, 100% Recycled Content

Clean up your control center with Avid's Matchmaker clamp. It combines the mounts for your SRAM shifters and Avid brake levers into one simple, sleek unit so you can drop some grams and keep your bar nice and tidy.

The least expensive way to ditch 40+ grams of rotating weight is with our Turbo Talc Tubes. A patented, oversized 4.8cm valve base prevents tearing, while a partially threaded valve stem provides a clean interface with pumps. Our lightest and most supple tube offering, it's also been proven in rolling-resistance testing to reduce drag by as much as 13% per wheel. - Packed in talc for easier installation. - 4.8cm valve base prevents issues of valves tearing off. - Smooth at the top for easier pump head insertion and reduced wear on pump internals. - Thinner tube design saves approximately 40 grams of rotating weight. - Thickness: 0.6mm

E-Caliber 9.8 XT is a lightweight carbon electric mountain bike that rides—and looks—like a traditional cross country bike. It's built with the same race-worthy tech as Supercaliber, including our exclusive IsoStrut integrated shock, and it has a sleek Fazua drive system that delivers a little boost when you want it most. It's right for you if... You're an avid XC rider, and love the idea of an e-MTB that helps you push your limits without providing too much assistance. It's also great for those who want to get out and ride more, or keep pace with faster friends. The tech you get A lightweight OCLV Mountain Carbon frame with 60mm of travel, a 120mm RockShox SID Select+ fork, and Trek IsoStrut shock. A Fazua Evation motor and 250Wh battery that can assist up to 20 mph when it's on, and gives zero drag when it's off. A Shimano XT drivetrain, Bontrager Line Elite dropper post, and Kovee Pro 30 carbon wheels with a 108-tooth Rapid Drive rear hub for instant engagement. The final word E-Caliber flies down singletrack like an XC MTB—because it's modeled after Supercaliber! And the Fazua assist is awesome for riders who are looking for just a little advantage that'll help them do even more of what they love. Why you'll love it - You get a helping hand from the motor on climbs and long rides, but it's a more natural-feeling assist that gives you an overall experience that's closer to riding an analog bike than a typical e-MTB - The drive system, including the motor, is easily removable. Just take it out, pop on the included cover, and you'll have a standard mountain bike that weighs 2.9kg less than before - IsoStrut gives you just enough rear suspension for cross country traction and comfort with less weight and more efficiency - Pivotless seat stays save on weight and actively bend to help soak up trail chatter - Wider Kovee Pro 30 wheels provide better tire support so you can run lower pressure and get more traction

New Super Record 12 Speed sprocket cassettes: innovation which gives the user great advantages, thanks to the matching dimensions and complete compatibility with wheels and frames. The rider has always been Campagnolo’s focus, and the goal has always been facilitating their performance; making the impossible possible. Adding an additional sprocket might seem simple, however, we have not only succeeded in maintaining the same footprint, but also improving the component’s performance and durability, which was a tricky challenge! The new Super Record 12 Speed sprocket sets feature thinner sprockets, tighter spaces and space-saving dimensions that are the same as those of the 11 Speed sprockets, meeting everyone’s needs with just two (11:29; 11:32) cassettes. The addition of the twelfth sprocket allows a linear upshift or downshift by a single tooth, up to the seventh gear, allowing the cyclist to find the perfect ratio for any situation. In addition, the closer sprockets ensure faster, quieter and more precise shifting thanks to the special tooth design and surface treatment which guarantees a longer lifespan. The 6 larger sprockets are also available in two single-piece steel triplets, to avoid energy loss. Mounting the cassettes is easy thanks to matching-thickness spacers.

Carbon head set spacers for 1-1/8" steerer. - For 1-1/8" steerer - 10mm thick - 2pcs per bag - 33mm OD

- Designed in collaboration with Brandon Semenuk, the Overture is used by more pros than any other slopestyle saddle. - Tailored to the needs of the slopestyle, dirt-jump rider, the Overture is designed to compliment trick variations by being grip-able, pinch-able yet slim and easy to move around. - Brandon's design features a silicone print pinch area with subtle flares in the rearward body to compliment leg-pinch and no-hand tricks. - A lot of people also run this on their DH rig.

Take on cooler rides with this full-featured jersey. It's perfect for transition-season rides and layering on extra-cold days. - Thermal fabric panels on the front and sleeves for warmth - Breathable fabric panels on the side and back to regulate moisture - Ideal For 20–50 degree weather - Three rear pockets - Reflective rear piping for visibility - Dual YKK zipper - Trim fit

Como is a laid back e-bike with a clean look and upright rider position for convenient comfort and style. This full-power electric bike was designed for city streets and comes equipped with fenders, lights, and a low step-through frame, making it perfect for daily commutes or riding around town. Como offers the best combination of power, range, and usability while remaining incredibly versatile. You will never have to sacrifice comfort for style. You'll find yourself making up errands to ride it again. COMFORTABLE: An upright body position and smooth handling are optimized for all-day riding comfort, confidence, and control. EASY TO USE: The Como's sleek design and step-through frame make the bike an approachable, functional everyday e-bike. POWERFUL: It's you, only faster—it's 4x You, to be precise. The Turbo Full Power system senses the force you apply to the pedals and naturally amplifies your effort by up to four times for an experience that makes getting up any hill or to any destination no sweat. Literally. SMOOTH: Stay comfortable in the saddle with an 80mm front suspension fork, higher volume tires, and a plush suspension seatpost that smooths harsh bumps. TURBO: The heart of the Como is its Turbo technology, the advanced and integrated electric bike system that delivers an unequaled combination of power, natural feel, anti-theft functions, training tips, a full-function bike computer, up to 68 miles or 5 hours of range, and more. SECURE: Como has anti-theft on lock. Thwart would-be bike thieves by disabling the motor with a press of a button so nobody can turn the motor back on without your personalized pin. For additional protection, the Como's battery locks in the bike, or can be easily taken with you. Beat it, bandits. SILENT: Turbo Full Power Motor provides smooth, quiet, and seamless amplification for a quiet ride on any terrain. BETTER OVER TIME: Because our technology never stops improving, neither will your ride experience. With new features, introductions, and firmware updates happening wirelessly, take your ride experience to the next level every time an update is available. - Turbo Full Power 2.0E motor and 530Wh battery offer an unparalleled riding experience, providing a smooth, seamless, and shockingly quiet amplification of your efforts, up to 20 mph. The integrated controller responds to your pedal inputs resulting in intuitive amplification of your efforts with an incredibly natural feel. - MasterMind and Mission Control—The MasterMind display reveals all relevant info about your ride, allows real-time tuning of support levels, and enables over-the-air updates so that your bike gets better over time. MasterMind seamlessly integrates with the Mission Control app for range optimization tools, advanced tuning, on-ride diagnostics, and more. - Proven Smooth Efficiency—We designed a custom testing mechanism to analyze bumps at even the smallest frequency to increase comfort and vision. That precision, paired higher volume tires, and an 80 mm suspension fork, will flatten roads before your eyes. - Turbo System Lock—Use the Mission Control app to disable your bike's motor and activate the motion sensor alarm. Once locked, the motor cannot be enabled again except by the owner. - Fully Integrated Removable and Lockable Downtube Battery—Easy to charge, easy to secure. - Equipped with DRYTECH Fenders, LED front and rear lights, and 27kg capacity rear HD Rack. The rear rack is compatible with child bike seats, and the bike is also rated to pull a thru-axle trailer.

Our initial partnership with Aaron Gwin produced numerous innovations that pushed grip technology to new levels. With the new AG2 Grips, we wanted to take things even further. We started with an ultra-soft pro compound and built it into an improved knurl pattern that provides extra tackiness and control along with reduced vibration transfer. We coupled this with our exclusive offset design that offers even more impact dampening where it is needed most, without increasing the grip diameter. We then redesigned the most impact-prone portions of the grips to provide an even better feel and accurate control when riding. - Grips feature a larger diameter than the original grips (30.5mm) with offset padding towards the rider for improved comfort - Soft Pro compound provides excellent shock absorption - Redesigned surface pattern for improved traction and vibration dampening - Redesigned ends provide an improved feel - Provide extra durability against grip blowout - Thin ribs add control without a bulky feel - Uses our race-proven Version 2.1 Lock-On system - Molded over the aluminum endcap, the end provides durability but will not gouge

Our new Trail Gloves are sure to be your go-to for the perfect, everyday mountain glove. They feature silicone-printed fingers for grip and brake lever control, an AX Suede palm for durability and bar feel, and fabrics that deliver the perfect blend of comfort and durability. - Ax Suede palm provides durability without sacrificing bar-feel. - Brushed tricot thumb wipe for sweat. - Compatible with conductive touchscreens. - Durable, light-compression, stretch nylon at the back of hand delivers durability and tremendous comfort over a wide range of trail conditions. - Fabric Content: Back of hand: 95% Nylon, 5% PU; Palm: 80% Polyester, 20% PU Ax Suede - Silicone-printed fingers provide maximum handlebar and brake grip. - Velcro cuff provides a snug and secure fit.

The perfect apparel for the perfect ride, that's what our Prime Series apparel is all about. The best fabrics, constructions, and technologies go into these pieces, and the Men's Prime Bib Shorts are no exception. Starting with the uppers, the open suspender design keeps the bibs right where you want them, without constricting any upper body movements. The suspender fabric is also extremely soft and plush, eliminating any shoulder discomfort or irritation, yet we've still built in a HookUp magnetic bib connection making nature breaks much easier. The pre-molded, triple-density foam Body Geometry Contour 3D Chamois is contoured to perfectly match the curvature of your body, all while being soft and supportive in all the right places. With the Prime Bib Shorts, you're sure to embrace the "chamois time is training time" motto as they're so comfortable, you won't want to take them off. - Open suspender construction keeps the bibs in place without constricting the upper body. - Stretchy elastic suspenders are extremely plush and soft against the skin. - Silicone-infused fabric cuff provides a gentle, secure hold on the legs to ensure a shift-free fit. - Fabric Content: MAIN: Knit 46% Polyamide, 38% Polyester, 16% Elastane - UPPER: 90% Polyester, 10% Elastane

You have places to go, people to see, and fitness goals to achieve. We get it—life moves pretty fast, so it's a good thing we made Sirrus to help you with all of it. Wherever you're heading, Sirrus will take you there. Sirrus features an alloy frame and steel fork construction, as well as reliable Shimano components that are built to withstand years of daily abuse on the world's pavement. Powerful hydraulic disc brakes provide reliable stopping power in any condition, and comfortable, ergonomically designed Body Geometry touchpoints are there to take the sting out of longer rides. So, as you push yourself to reach your goals, you'll feel more connected to your bike and know that you have the perfect partner with Sirrus. - Lightweight A1 Alloy frame with 42c tires clearance, clean internal cable routing and mounting points for a range of accessories give maximum flexibility. - Intuitive and easy-to-use Shimano 2x8 wide-range shifting. - Powerful hydraulic disc bakes for safety and control.

- Solid forged crank arm - Square interface - Aluminum - Speed: 10/11 - Chainline: 44mm

Continued development of our popular crankset has led to the EVO Edition, a benchmark for aluminum MTB cranks. The latest FEA analysis tools, rigorous lab testing, and extensive field testing mean the EVO crankset is both lighter and stiffer than the previous model. Now featuring a self-extracting axle/arm interface, simplifying fitting and removal. And all proudly designed, tested, and manufactured in Barnoldswick, UK. - 15% lighter and stiffer than the previous model - Now featuring a self-extracting axle-to-arm interface, simplifying fitting and removal - Forged and CNC machined 7075 series aluminum alloy crank arms - Unique expanding spline/arm interface - Versatile Spline mount for chainring/spider - 30mm oversized axle - Weight: 641g (arms, axle, and 34 tooth spiderless ring)

Our new Trail Shield Gloves are the most-padded in our new line. These gloves feature a conductive palm that keeps your hands comfortable on rough trails, but they also have a layer of foam inserted into the knuckle that adds some protection from hidden branches. - Ax Suede palm provides durability without sacrificing bar-feel. - Brushed tricot thumb wipe for sweat. - Compatible with conductive touchscreens. - Durable, light-compression, stretch nylon at the back of hand delivers durability and tremendous comfort over a wide range of trail conditions. - Fabric Content: Back of hand: 95% Nylon, 5% PU; Palm: 80% Polyester, 20% PU Ax Suede - Silicone-printed fingers provide maximum handlebar and brake grip. - TPU-printed knuckles provide protection and durability for epic trail days. - Velcro cuff provides a snug and secure fit.

The GORE Force Bib Shorts+ are your new favorite bib shorts, in our most popular fabric, engineered for the perfect fit. - Full mesh bib construction for optimum fit and breathability - Quick drying material - Overlock seams add durability and minimize chafing - Silicone grip inside leg hem create snug fit without restricting movement - Raw cut hem at legs - Central torso architecture keeps chamois in place - ADVANCED High Vent seat insert with GORE® WINDSTOPPER® Cup - Radio pocket at back - Reflective logo - Inseam length: 22.5 cm / 8.8 inches

Our Women’s Trail Shield Gloves are the most padded in our line. These gloves feature a conductive palm that keeps your hands comfortable on rough trails, but they also have a layer of foam inserted into the knuckle that adds some protection from hidden branches. - TPU-printed knuckles provide protection and durability for epic trail days. - AX Suede palm provides durability without sacrificing bar-feel. - Silicone-printed fingers provide maximum handlebar and brake grip. - Brushed tricot thumb wipe for sweat. - Durable, light-compression, stretch nylon at the back of hand delivers durability and tremendous comfort over a wide range of trail conditions. - Velcro cuff provides a snug and secure fit. - Compatible with conductive touchscreens. Fabric Content: BACK OF HAND: 95% Nylon, 5% PU, PALM: 80% Polyester, 20% PU AX Suede

FX 2 Disc is a stylish and versatile hybrid bike with disc brakes that let you stop on a dime and ask for change, even when the weather isn't cooperating. Train, commute, or ride for fun with the lightweight Alpha Gold Aluminum frame, 18 speeds, and semi-skinny tires that are fast on the road and stable on loose terrain. It's right for you if... Raining cats and dogs? That doesn't keep you from riding. You want a high-value hybrid bike with the superior all-weather stopping power of disc brakes, plus a lightweight frame and quality parts that will hold up over time. The tech you get A lightweight aluminum frame with hydraulic disc brakes for all-weather stopping power, a Shimano drivetrain with 18 speeds and a wide range of gearing so you're never pedaling too hard or too soft, and mounts that make it easy to accessorize your ride! The final word FX 2 Disc is a go-anywhere hybrid bike with parts that perform on training rides, trips to the market, or your morning commute. It has endless options for accessories, but what really sets this model apart is the disc brakes, which provide great stopping power in all weather conditions. Why you'll love it - More confident braking means bad weather doesn't have to keep you from enjoying your ride - It's versatile and does whatever you want it to do, whether that's riding for fitness, commuting, or cruising to the farmer's market to pick up groceries - It's easy to accessorize with racks, a kickstand, fenders, lights, and more! - Like every Trek hybrid, it's backed by a lifetime warranty and supported by a wide network of retail partners - The cables are routed internally, which protects them from the elements and adds to the bike's sleek look

The Men's NeoShell Gloves have been designed to add some warmth on chilly days. A Polartec NeoShell upper keeps your hands safe from wind and chilly weather, all while keeping the overall bulk of the gloves at a minimum. Pair that with a hydrophobic AX Suede palm, and you’ll have all the dexterity and comfort you need. - Hydrophobic Ax Suede on the palm ensures a confident grip on the bars. - Wiretap touchscreen-compatible for easy use with smartphones. - Polartec NeoShell keeps your hands completely dry even in the heaviest of downpours. - Fabric Content: FABRIC A: 90% Polyester - 10% Spandex - FABRIC B: 80% Polyester - 20% Polyurethane

The Proviz REFLECT360 pannier cover is adjustable and designed to fit over all standard size panniers (up to 25L capacity). The Proviz REFLECT360 pannier cover, like the whole of the REFLECT360 range, is manufactured from CE EN 20471 certified material. The pannier cover is dual-layered to give you unparalleled water-resistance and is made from 100% reflective material to help your position be more easily identified on the road. The Proviz REFLECT360 pannier cover is attached securely using elasticized cords and press-stud fasteners. The edges of the cover are elasticized to create a secure fit around your pannier. A light loop can also be used for those wishing to attach an extra LED light. About the fabric: The fabric used for the REFLECT360 range is highly technical. During daylight, it is a modest grey color. At night, when the fabric picks up an external light source, e.g. vehicle headlights, it gives "astonishing reflectivity" (quote: Cycling Active Magazine Sep:2014). The material is CE EN 20471 certified. - Made from 100% reflective material—CE EN 20471 certified - Dual-layer 100% waterproofing - Easily fitted to most panniers up to 25L in size - Elasticized edge, straps, and press-stud fasteners - Light loop (to add LED light)

- Branded screen print on the chest. - Fabric Content: 85% drirelease Polyester, 15% Elastane

The Horizon Road Plus TCS tire brings supple, plus-size traction and smooth riding characteristics beyond where the pavement ends. Create a new riding experience, regardless of where your exploits lead you. - Smooth centerline with herringbone outer tread - Rounded profile with vertical channels to enhance cornering characteristics - High volume casing enables comfortable ride - Dual Compound Rubber means a fast-rolling tire with great corning traction - Designed to meet ETRTO standards, TCS (Tubeless Compatible System) tires feature the best of both worlds: they boast the ride benefits & reliability of a tubeless tire with the minimal weight of a tube-type tire.

SRAM's RED Bar Tape is perfect for upgrading your handlebars and adding comfort and style to your bicycle, too. You get enough handlebar tape to wrap both sides, S logo plugs for a touch of class, and a texture that matches SRAM's RED shifter/brake hoods.

After years of mountain biking with thru-axles with bulky handles that seemed to strike every trailside obstacle, we needed a better option. Our Lightning Bolt-On thru axles offer a high-quality, simple, lightweight alternative to that bulky handle. Available in a range of sizes that fit both front and rear wheels on all types of thru-axle-equipped bikes. - Lightning is Better—Our front and rear Lightning Bolt-On axles offer a stronger, more durable, lower profile, and lighter weight option to replace your stock thru-axles. - Low Profile—No more bulky handles to strike trail obstacles or create wind drag. Aerodynamic design. - Light Weight—Our axles are internally bored to remove unnecessary material without compromising strength. - Easy to install—Our matching front and rear Lightning Bolt-On Axles require only a standard 6mm hex wrench for easy installation and removal. - Better Tolerances—Manufactured in the USA to the tightest tolerances using aerospace materials and CNC manufacturing. No longer will your axle loosen while riding. - The axle is precision CNC-machined in the USA from 7075 aluminum and hard-anodized for rugged durability. Our axles are built to the tightest standards in the industry. - No special tools required. Design allows for wheel installation and removal using your standard 6mm hex wrench. - Designed, built, and quality tested in the USA. Proven around the world.

The Sidi MTB Speed 2 is a fast, efficient and durable shoe tested for the most difficult off road terrain. The ease of adjustment and clean design make it reliable and intuitive to use. -The Tecno-3 System dials in fit along the entire length of the shoe, adapting the upper to the shape of the foot for a customized fit -Like most Sidi small parts, the Tecno-3 System is serviceable and replaceable -The Sidi MTB Competition Sole has been specifically designed for mountain biking and can be fitted with two toe spikes on the front for traction in difficult and muddy conditions. Toe spikes are sold separately -The reinforced heel cup stabilizes and supports the heel. Anatomically shaped to reduce heel slip and increase power transfer