Skip to main content

Filter By:

  • Show More Brands

  • Show Fewer Brands
  • Show More Sizes
  • Show Fewer Sizes
  • Show More Model Years
  • Show Fewer Model Years

Products

$7,849.99 $8,899.99 12% Off
Madone SL 7 Disc combines advanced aerodynamic performance and all-around ride quality with the blazing fast, reliable shifting of Shimano's wireless Ultegra Di2 electronic drivetrain. It's light, fast, and incredibly sleek, and it comes with aero carbon wheels, a road-smoothing IsoSpeed decoupler, and powerful hydraulic disc brakes that perform in any conditions. - Wireless Ultegra Di2 delivers faster, smoother, and more responsive shifts than ever - Adjustable Top Tube IsoSpeed lets you adjust compliance to your preference, and it's damped with an elastomer so it rebounds in a smooth, controlled, stable motion - All the aero advantages of Madone, plus the added capability to clip on aero bars for triathlons and time trials - Disc brakes offer better braking performance and extra clearance for wider, more stable tires - The Madone seatpost has an integrated mount for the Bontrager Flare RT tail light
$5,349.99
Domane SLR Disc Frameset is built with ultralight 800 Series OCLV Carbon and has rear IsoSpeed to soak up rough terrain. This is the lightest endurance road bike frame we make. It's designed for flat-mount disc brakes, has an internal storage compartment, and includes a headset, 12mm thru-axles, and a Domane Disc full carbon fork. It features lofty clearance for up to 38c tires to keep you floating on rough roads and light gravel. It's right for you if... You're building up your dream endurance road bike for quickness and comfort during your longest days in the saddle, and you're starting with the lightest, most advanced OCLV Carbon Domane frame available. The tech you get An ultralight and refined 800 Series OCLV Carbon frame with rear IsoSpeed, internal storage, internal cable routing, and top tube mounts. Domane SLR Disc Frameset is built for flat-mount disc brakes and includes a headset, 12mm thru axles, and a full carbon Domane Disc fork. The final word Hands down, the best endurance road bike frameset we make. Not only is it built with our ultralight 800 Series OCLV Carbon, but it has road-smoothing IsoSpeed tech that takes elevates comfort on rough roads and gravel. Why you'll love it - The sleek all-new 800 Series OCLV Carbon frame saves weight and gives you more free speed thanks to updated Kammtail tube shapes - A sleek internal storage compartment gives you a versatile spot to stow tools and gear, while top tube mounts let you cleanly bolt on a bag for all day adventures - Road-smoothing rear IsoSpeed absorbs fatiguing bumps in the road to keep you comfortable through the longest miles and hardest race days
$2,349.99
Procaliber frameset is a race-worthy carbon cross country mountain bike frame that's light, fast, and built to win. It has the unique advantage of IsoSpeed, a decoupler at the top tube/seat tube junction that gives you more compliance on rough trails for a smoother, faster ride. It's right for you if... In group trail rides and XC races, you lead the pack. You're looking for the performance edge that comes with a lightweight carbon frameset with exclusive IsoSpeed technology that smooths out trail chatter so you can stay stronger longer. The tech you get A lightweight OCLV Mountain Carbon frame with IsoSpeed, a tapered head tube, and internal control routing that's super easy to use. Procaliber frameset includes a Knock Block headset, and is designed for a 100mm fork, up to 2.4" wide tires and 1x drivetrains with up to a 36-tooth chain ring. Built for a PF92 bottom bracket, post-mount disc brakes, and Boost148 wheels. The final word A lightweight carbon mountain bike frameset built to perform in XC races and blazing fast group rides. It's nimble, quick on climbs, and responsive in and out of corners. Best of all, it delivers a massive advantage in speed and comfort with the trail-smoothing IsoSpeed decoupler. Why you'll love it - OCLV Mountain Carbon is race-light and trail-strong - The IsoSpeed decoupler makes it ride smoother than any other hardtail, so your body doesn't get beat up by trail chatter - New internal control routing is super easy to use thanks to built-in channels that guide your hose or housing easily through the frame - You get a Straight Shot downtube for extra-stiff, responsive handling without added weight, and a Knock Block headset that protects against spinning bars and fork crowns
$3,629.99
For fast XC riders and cross country mountain bike racers who want to cover a lot of ground fast, there's no better hardtail frameset than Procaliber SL. It's built with Super Light OCLV Mountain Carbon and delivers the unique trail-smoothing advantage of IsoSpeed, which takes the edge off fatiguing bumps in the trail so you can stay stronger longer. It's right for you if... You want to fly up climbs, rail the corners, charge through technical sections of trail, and win every sprint to the line. You have a dream XC build in mind, and you want to start with the lightest carbon hardtail frame we offer. The tech you get A superlight SL OCLV Mountain Carbon frame with Control Freak internal cable routing and trail-smoothing IsoSpeed. The Procaliber SL frameset includes a headset, and is designed for post-mount disc brakes and a PF92 bottom bracket. The final word Smoother. Lighter. Faster. Procaliber SL was built to win the XC game. The ultra-lightweight SL OCLV Mountain Carbon frame with IsoSpeed delivers serious performance for serious riders. Why you'll love it - This SL OCLV Mountain Carbon frameset is the ideal start to an obscenely lightweight cross country build - The IsoSpeed decoupler makes it ride smoother than any other hardtail, so your body doesn't get beat up by trail chatter - Control Freak Cable Management allows you to run any combination of cables exactly the way you want, while still giving you sleek looks and protecting your cables against unnecessary wear - Boost148 spacing on all frame sizes except S, which has a 142x12mm rear axle
$4,799.99
Émonda SLR H1 frameset delivers the same ultralight performance as other models in our lightest Émonda family, with a lower and longer H1 geometry favored by elite racers. This is the same exact frame ridden by the pros of Trek-Segafredo. We can't guarantee this frame will earn you a place on the team, but we can't not guarantee it either. It's right for you if... You want the lightest road bike frame we've ever made and you favor a more stretched-out geometry on your race bike, just like the world's elite riders. The tech you get Our lightest 700 Series OCLV carbon frame, an Émonda carbon fork, and a lower and longer H1 geometry. Built a BB90 bottom bracket and direct mount rim brakes. Includes an integrated, cartridge bearing headset. The final word This is the frame chosen by the riders of Trek-Segafredo, and for good reason: it's insanely light, perfectly balanced, and the slightly longer H1 geometry puts you in a more aggressive riding position for sprints to the line. Why you'll love it - The H1 geometry is best for racers who prefer being in a more aggressive riding position - We optimized our carbon layup process specifically for this frame to achieve the lightest weight and finest ride quality possible - You can immediately feel the benefits of our lightest Émonda frame on the biggest climbs - Yes, it's a super lightweight bike—but it's a super lightweight bike with exceptional ride quality, balance, and stiffness, too
$231.99
No words needed. Just google "EX 471 Leogang World Cup". Let your muscles play on the uphills and switch to attack mode for the downhills. This is exactly what the DT Swiss Enduro rims are made for. Each rim is a piece of high precision engineering and, thanks to the extremely resistant alloy, the EX 471 can cope with the most demanding trails.
$4,799.99
Madone SL Disc frameset is the ultimate platform for a high-value custom aerodynamic race bike. It's built with our lightweight 500 Series OCLV Carbon layup and Adjustable Top Tube IsoSpeed for an incredibly smooth ride. It's right for you if... You want light weight, aerodynamics, and great ride quality in a single road bike frame. Madone SL Disc frameset is the perfect platform for a speed-hungry custom build that'll help you go faster than ever before. The tech you get A lightweight 500 Series OCLV Carbon frame with Kammtail Virtual Foil (KVF) aerodynamic tube shaping and road-smoothing Adjustable Top Tube IsoSpeed, KVF full carbon fork with tapered steerer and carbon dropouts, T47 bottom bracket, invisible cable routing, Madone integrated headset, and Madone micro adjust seatmast. Built for disc brakes. The final word A high-value, high-speed start to your ultimate race bike build. Madone SL Disc frameset is lightweight, aerodynamic, and delivers superior ride quality for incredible performance from the very first ride. Why you'll love it - Adjustable Top Tube IsoSpeed lets you adjust compliance to your preference, and it's damped with an elastomer so it rebounds in a smooth, controlled, stable motion - This bike looks awesome, like it's breaking speed records even when it's parked at the café for a post-ride espresso - Disc brakes offer better braking performance and extra clearance for wider, more stable tires - Includes a bearing top cap compatible with traditional stems - Seatpost (available in two lengths/two offsets) sold separately
$2,799.99
Emonda SL Disc frameset is a perfect starting point for your custom lightweight build. Its aerodynamic frame is built with 500 Series OCLV Carbon and designed for disc brakes, which makes for a bike that's not only ultra-fast up climbs and on straightaways, but also one that brakes better in all weather conditions. It's right for you if... You have a lightweight dream build in mind, and you're looking for an aerodynamic carbon road bike frameset that gives you an exceptional amount of performance per dollar spent. The tech you get An ultralight 500 Series OCLV Carbon frame with aero tube shaping and a full carbon fork—both with internal cable routing. Plus 12mm thru axles and an integrated cartridge bearing headset. Built for a BB90 bottom bracket and flat-mount disc brakes. The final word Emonda SL Disc frameset gives you a great start on your dream build for a lightweight disc road bike. This platform combines all the flat-out fast advantages of a lightweight, aerodynamic carbon road bike with the better performance and tire clearance that comes with disc brakes. Why you'll love it - Aerodynamic tube shaping makes this our fastest Emonda SL platform ever - It's not just super light, it's also perfectly balanced for great handling and cornering - It's got climbing in its genes, and the lightweight OCLV Carbon frame lets you explore bigger mountains with less effort - Like every Emonda, it's built to be the lightest and fastest in its class and backed by our lifetime warranty
$114.99
The Digital Shock Drive features incredibly compact and lightweight aluminum construction with a cleverly integrated hose that threads into the handle when not in use. Highlighting the Digital Shock Drive is the ultra low-profile digital gauge that’s built into the pump’s aluminum body. This innovative design keeps the pump extremely compact, yet still provides a highly accurate measurement of air pressure. It provides up to 350 psi (24 bar) and features a zero-loss chuck design, which unthreads from the shock after the valve pin seals itself. This is the ultimate shock pump to throw in a pack and use for trailside adjustments.
$16,849.99
Émonda SLR 9 Disc is an ultralight, aerodynamic carbon road bike that's designed and built to be the fastest climbing bike we've ever made. You get the legendary ride quality of our lightest platform, plus more speed, thanks to aero tubes wrought from our lightest OCLV layup ever. Shimano's highest-end wireless electronic drivetrain and our best climbing wheels give you every edge against the competition. It's right for you if... Great is for everyone else. You want the best, just like the pros of Trek-Segafredo, and that's our lightest, fastest road bike ever, stacked with tech that delivers an incredible difference in performance. The tech you get An ultralight and aerodynamic 800 Series OCLV Carbon frame that weighs under 700 grams, an all-new 2x12 Shimano Dura-Ace Di2 wireless electronic drivetrain, ultralight, fast, and stable Bontrager Aeolus RSL 37 OCLV Carbon tubeless-ready wheels, an Aeolus RSL OCLV Carbon integrated aero bar/stem, and powerful hydraulic disc brakes. The final word Everything about this bike is ultralight and ultra-fast, from the aero frame to the carbon wheels to the precise, reliable shifting of the all-new wireless electronic Dura-Ace Di2 drivetrain. Why you'll love it - Trek's fastest climbing bike is aero, weighs in at less than 700g, and rides like a dream - All-new wireless Dura-Ace Di2 delivers ever faster, smoother, and more responsive shifts than ever - 800 Series OCLV Carbon is the lightest laminate we've ever made - The Aeolus RSL 37 wheels are designed for climbing and were developed alongside Émonda - Make it yours: it's fully customizable through Project One
$49.99
Safety & Style. Protection With Panache. - Child/Youth BMX - CPSC Certified - Easily Adjustable Straps - Easy-To-Adjust Fit System - Weight: 470 grams - Vent count: 12 - Sizes: Child 50-54cm, Youth 54-58cm
$204.99
The Bontrager Commuter Double Pannier delivers versatile capability to your bike so you can carry more and ride more. The integrated MIK mounting system makes installation and removal a breeze with compatible MIK racks. Additional accessory pockets and an easy-to-load main compartment add functionality to this durable, symmetric design made from waterproof materials. - MIK mounting system provides secure, integrated mounting with compatible racks - Made from durable, waterproof material to help keep your gear safe - Large compartment holds shape for easy loading and unloading with roll-top buckle closure - External pockets and compartments help organize accessories and gear - Sturdy handle pairs with MIK system to make this double pannier easy to remove and carry - Reflective materials enhance visibility with a stylish finish
$41.99
Park's BBT-18 is a heavy duty, investment cast tool for installing and removing all Shimano, ISIS Drive, and ISIS Overdrive 8-notch bottom bracket cups.
$59.00 - $119.00
The Maxxis Rekon Race is a semi-slick XC race tire that features the lowest profile tread in our XC line. It is a great choice for dry XC trails and short track racing.
$369.99
With exceptional warmth and waterproofing for the coldest and wettest conditions, a heat-reflecting insole, and a QuickLace system that's housed under the outer shroud, your coldest days on the road are soon to be your favorite. The all-new Blaze is our core winter cycling shoe, featuring modern technical materials and design to reduce bulk while delivering exceptional warmth and weatherproofing for conditions down to -10° C /14° F. The heart of the Blaze is an internal, moisture-wicking mountain bike shoe that's fully insulated with a channeled, high-loft Primaloft synthetic sheath featuring 10,000 W/P + 10,000 GM2 wind- and waterproof performance plus a heat-reflecting insole and protective reinforcement in key wear zones. The result is a breakthrough in warm, dry comfort with purpose-driven details that inspire confidence to pedal through the toughest winter riding conditions. Specs: - Upper Construction: Stretch woven face fabric with 10,000 w/p + 10,000 GM2; film channeled, high-loft fleece interior plus elastic outer collar Primaloft synthetic insulation; Fully seam-sealed stitching; Breathable, moisture-wicking mesh upper inner shoe; Thermobonded rubber toe and heel reinforcements; Integrated ankle padding; Reflective detail at heel and side profile - Reflectivity: Reflective detail at heel and side profile - Footbed: Heat-reflective insole with high loft fleece and laminated foil - Outsole: Nylon-composite plate; Dual-injected "Ice grip" soft rubber outsole; Stainless steel hardware - Weight: 385g (Size 42)
$56.49
Mountain TT Twin Turbo pump fills both large volume fat bike tires and higher pressure MTB tires, as well as gravel bike tires with ease. TwinTurbo technology uses both strokes to compress air to deliver high pressure output and saves time and effort. Integrated dust cap keeps pump head clean and thumb lock lever ensures air-tight seal. Specs - HEAD: Presta / Schrader / Dunlop with integrated dust cap - BARREL: Aluminum - THUMB LOCK / HANDLE: Plastic - CAPACITY: 120 psi / 8 bar - VOLUME PER STROKE: 90.9 cc - SIZE: 22 x 5 x 4 cm / 8.7” x 2” x 1.6” - WEIGHT: 192 g / 6.77 oz Added Feature - Side mount bracket
$39.99
Keep the rubber side down and fully inflated when you choose MICHELIN's Protek tires. A specially-cut tread pattern reduces rolling resistance, and MICHELIN's rubber compound makes for an excellent grip. Grooves at the shoulders help increase traction on wet and greasy surfaces. A 1mm-thick anti-puncture reinforcement will help ensure nothing bursts your bubble, so you can enjoy the ride. Weights: 26 x 1.4 (630g) 26 x 1.85 (940g)
$39.99
Keep the rubber side down and fully inflated when you choose MICHELIN's Protek tires. A specially-cut tread pattern reduces rolling resistance, and MICHELIN's rubber compound makes for an excellent grip. Grooves at the shoulders help increase traction on wet and greasy surfaces. A 1mm-thick anti-puncture reinforcement will help ensure nothing bursts your bubble, so you can enjoy the ride. Weights: 27 x 1.25 (650g) 700 x 28c (575g) 700 x 32c (630g) 700 x 35c (700g) 700 x 38c (760g) 700 x 40c (800g)
$265.00 - $299.99
With a focus on reduced weight and cross-country tuned stopping power, Shimano SLX M7120 brakes provide intuitive modulation so that you can explore your limits with confidence. The BL-M7100 levers feature an optimized lever axle position, an additional handlebar contact point for greater stiffness, and refined ergonomics for rider comfort. At the caliper end, the BR-M7120 4-piston caliper is optimized for the toughest enduro trails. - 10% stiffer than previous generation M7000, even under high-temp conditions - Quicker brake engagement with shorter free stroke - Tool-free lever reach adjustment - I-SPEC EV Clamp Band enables optional integrated shifter setup - Includes finned metal pads
$14,899.99
Slash 9.9 XX AXS T-Type is a top-tier carbon enduro mountain bike ready to rip through anything. It's built with an OCLV Mountain Carbon frame and 170mm high-pivot suspension for gobbling up boulders and keeping traction on-point for wall rides and punchy climbs. A 29-inch front and 27.5-inch rear wheel keeps handling playful, and an upgraded RockShox suspension package holds up to anything you can throw at it. Plus, SRAM's top wireless XX AXS transmission shifts with precision, even under load. - Its high-pivot suspension gives you insane control for hairy descents, while carefully tuned anti-squat and oversized pulleys make pedaling astonishingly efficient - The long, 170mm/170mm front and rear travel is more than enough for stomping big jumps and cleaning rock gardens - OCLV Mountain Carbon frame and wheels keep your ride light, stiff in all the right places, and smooth and quiet through the chunder - It comes ready to roll with a mixed wheel setup that gives you a fast-rolling 29-inch front hoop and a stiff, yet nimble 27.5-inch rear wheel, and it can be set up as a 29er for more speed - You can tweak Slash for how and where you ride with Mino Link, adjustable leverage rate, and add an adjustable-angle headset (not included)
$2,099.00
The DSX is the mountain biker's gravel bike with familiar hand positioning, reliable 1x drivetrains, large tire clearance, and dropper post routing for better off road control, and on road descending stability. Key upgrades over DSX 2: - SR/Suntour GVX LOR suspension fork with 60mm travel & air spring - Shimano SLX 12-speed drivetrain
$180.00
A set of no-nonsense panniers for the everyday commuter. Every Seymour bag is created using Oceanweave – Axiom’s new lightweight and durable fabric made from reclaimed fishnet – to help reduce the amount of harmful plastics in our oceans. - Volume 35 L / 2139 cu in (pair) - Weight 1240g / 2.73 lbs (pair) - OCEANWEAVE 600D recycled fishnet polyester with waterproof polyurethane coating - Red interior liner on back-plate protects contents from scratches and improves internal visibility - Daisy-chain webbing for additional tie-down options - Rixen & Kaul VARIO 1 hooks are adjustable from 6mm-16mm - The Rixen and Kaul lower SLIDE-LOCK rail and FLIP-LOCK hold panniers firmly in place - Drawstring closure helps to manage load - Mesh side pocket with elastic closure - Zippered rear pocket - Mesh front pocket with elastic closure - Daisy-chain webbing loops provide additional tie-down points - 3M triangle rear logo - Ultra-stiff polyurethane backing plate - LED light clip
$32.00
Get back on the trail with a quality replacement hanger. - Attachment hardware is sold separately - For use with 142x12mm, 148x12mm, 157x12mm, and 197x12mm hubs Specifications: - Size: Rear drive side, Thru Axle - Mounting location: Rear drive side - Attachment: Thru axle nut
$3,399.00 - $4,499.00 $4,499.00 Up to 24% Off
The Sight A3 boosts your All-Mountain confidence with incredible descending capability, adept, sure-footed climbing, and efficient pedaling. To make the Sight Aluminum, we had to re-think how you connect with the trail. With maximum front and rear wheel grip on climbs and descents, Sight A3 maintains momentum and cadence in technical situations and allows the suspension to move freely without absorbing drivetrain energy. Reasons It's Rad: - Precise tune and fit perfects every ride. - Max standover with long travel dropper posts. - Sweating the little stuff makes the ride better. - Four piston brakes with 200/180mm rotors. - Features the Ride Aligned Design System. Wheel size: Sizes Small – X-Large: 27.5-inch or 29-inch
$54.00 - $55.00
When it's time to replace your 9-speed cassette, check out SRAM's PG-950 cassette. It delivers solid shifting and durability ride in and ride out for your 9-speed rig.
$34.99
Made with recycled materials, this side-entry bottle cage offers easy bottle access on small frames and in tight spaces. SIDE LOADING FOR TIGHT SPACES The Side Load Recycled Water Bottle Cage lets you easily access bottles while you ride. It's built from recycled materials and fits neatly in small spaces, making it the ideal choice for smaller frames, full suspension bikes, and when using a frame bag. Great for mountain and road riding alike. Using recycled materials in this product helps provide second life to unwanted end of life plastics. PRODUCT DETAILS - Made using recycled plastic - Lightweight and durable composite construction - Side-loading design allows for easy bottle access on compact frames - Mount it on the down tube for left-side water bottle access - Mount it on the seat tube for right-side water bottle access - Suitable for road and mountain use
$1,449.99
Roscoe 6 is the ideal gateway to mountain biking for new riders looking to have a fun time on the trail. It boosts confidence with a 140mm travel air-spring fork that soaks up bumps and roots, an easy-to-use 1x Shimano CUES drivetrain, and playful frame geometry that makes it easier to control your bike on technical trails and winding singletrack. It's right for you if... You know there are good times to be had on the trail, and you want to be part of them! You're looking for an easy entry to the sport of mountain biking on a bike that will keep you excited and motivated to get out there day after day. The tech you get A strong aluminum frame, fast-rolling 29er wheels with wide, grippy 2.6" tires, and an SR Suntour fork with 140mm of travel. It has a trail-tough Shimano CUES drivetrain with 9 speeds and a wide range of gears for climbing, hydraulic disc brakes, and a dropper post for extra room on rough trails. The final word Roscoe 6 is your new best friend on the trail. It's patient, playful, and confidence-inspiring. It's all about getting out there, having fun, and enjoying the great sport of trail riding! Why you'll love it - It's more fun to be a better rider: Roscoe is so stable and forgiving, it's like an instant ability upgrade - 29er wheels and wide 2.6" tires make for a grippy, confident, and fast-rolling ride - The dropper post lets you lower your saddle on the fly so it's out of the way on descents - Its 140mm suspension fork has plenty of travel to soak up big roots and rocks Features: Ready to get rowdy With 140mm front travel, trail-smashing 29-inch wheels, and dialed-for-dirt frame features, Roscoe is ready to get rowdy on your favorite rides. Progressive trail geometry A long reach, slack head angle, steep seat angle, and short chain stays combine for a ride that's confidence-inspiring, yet still nimble and fun. The strong quiet type Roscoe stays well protected with a double-sided chainstay guard, tough downtube guard, and internal cable guides that help your ride stay quiet, even over rough trails. Shimano CUES Inspired by rider demand for trouble-free drivetrain longevity and performance, Shimano CUES offers a new foundation for versatility and durability across a range of both electric and standard bikes. CUES features Shimano’s new LINKGLIDE drivetrain technology for significantly increased life on wear items like chains, cassettes, and chainrings. Shimano LINKGLIDE LINKGLIDE technology has been specifically engineered for incredible durability while still delivering smooth and decisive shifting – along with a great pedaling experience. Available exclusively on Shimano CUES drivetrains. Upgrade your pedals and love your bike more Pedals are two of the five touchpoints that connect you with your bike, and even though this bike comes with a pair, upgrading to pedals that boost control and grip will greatly improve your ride. See the pedal guide and find the best pedals for your riding style. We recommend flat pedals for simple versatility.
$29.00 - $32.00
SRAM's MRX Comp Twist Shifters are simple to use and offer solid shifting and reliable construction. Shifting one gear or the whole range is simple with just a twist of the wrist. They shift a 2:1 Shimano rear derailleur and a SRAM or Shimano derailleur up front.
$72.50 - $144.99 $144.99 - $145.00 Up to 50% Off
Time to tackle new challenges The Vella women’s cycling shoe was designed to deliver the performance benefits of a cycling shoe with the go-anywhere fashion of a street shoe. All-day comfort and versatility means this clip-in shoe is perfect for the woman who's just active off the bike as she is on it. Key features - inForm Race last offers a slightly roomier, high-performance fit - Glass-reinforced internal nylon plate with full Tachyon rubber outsole - Compatible with 2-bolt SPD-style cleats - Stiffness index - 6 of 14 - Women's Specific Design is engineered to yield a better fit and greater comfort for women Details - Upper Fiber Content: 58.7% PU / 10.9% Polyester / 30.4% Nylon - Sole Fiber Content: 100% Rubber - Liner Fiber Content: 100% Polyester
$20.00 - $25.00
SRAM's MRX Comp Twist Shifters are simple to use and offer solid shifting and reliable construction. They shift a 2:1 Shimano rear derailleur.