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Bontrager Unconditional Guarantee

Bontrager's Unconditional Guarantee

Ride it and love it. If not, we’ll take it back.

It’s that simple.

If for any reason you're not satisfied with a Bontrager aftermarket purchase, return the item, along with the original sales receipt, to one of our Colonial Bicycle Company locations within 30 days for exchange.

The Unconditional Bontrager Guarantee excludes Bontrager OE (original equipment) componentry sold as part of a bicycle.

$23.00
Original equipment replacement rear derailleur hangers. Get back on the road with a quality replacement hanger. Product details - Attachment hardware is sold separately - For specific compatibility concerns, please contact our Customer Service team Specifications - Mounting location: Rear drive side - Attachment: 1-bolt
$29.99 - $35.00
Confident and durable The versatile Line Comp Flat Pedal is built from durable nylon for a solid platform with integrated traction, so every time you place your foot on your pedal your shoe stays put. Line Comp is strong enough to use on your mountain bike, but also at home on your city or commuter bike. A durable frame and solid axle with sealed cartridge bearings ensure lasting performance. Versatile flat pedals with a durable nylon body and forgiving traction tread that delivers consistent, confident grip. - Durable nylon body with a proven shape for comfort and confidence - Sturdy axle boosts durability and spins smoothly on sealed cartridge bearings - Nylon traction pins provide forgiving, confident traction - Simple to install with either 6mm hex or standard 15mm pedal wrench
$2.99
Bar end plugs (2)
$9.99
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.
$89.99
Comfort without sacrificing power Aeolus Comp brings comfort, power, and speed to road riders looking to dig deep and rotate further forward into a more aero road position. Added padding make it the go-to saddle for anyone who wants 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 - Lightweight shell provides balance of weight, strength, and compliance - Comp-level trim optimizes foam padding for added lightweight comfort - Available Blendr accessory mounts to cleanly integrate rear light
$39.99
Bontrager's ergonomic Satellite Elite Grips comfortably distribute your weight and hand pressure allowing you to ride longer with less fatigue. Made from a triple density material, the Elite absorbs vibration so your hands don't. The integrated clamp and lock-on feature eliminates handlebar twisting and makes them super easy to install and change out. The 90/130mm version accommodates a rear twist shifter.
$34.99 - $36.99
The Bontrager Carbon Stop Cork pad was engineered by Keith Bontrager specifically to work with carbon rims. Designed to dissipate heat on long descents and decrease rim wear, they will keep you coolly in control on even the most challenging mountain stages. Key features: - Engineered especially for use with carbon rims - Designed by Keith Bontrager for professional cyclists - Unique cork compound reduces braking heat and wear on rim
$79.99
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 - Diameter: 4mm - 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
$104.99
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
$329.99 - $345.99
A performance dropper post with MaxFlow technology for faster, smoother operation. The Line Elite 31.6 Dropper is easy to set up and easier to drop, with 20% less saddle force required. Avid Matchmaker and Shimano I-Spec II compatibility ensures simple, integrated setup and the included lever provides a great feel with an easy push. Length options from 100mm to 170mm travel ensure there is a size for your ride. Designed for bikes with internal frame routing. - Infinitely adjustable air-sprung hydraulic locking cartridge with 20 percent reduction in compression force - MaxFlow design allows for a faster return and less compression force - Travel inserts available in 10mm and 30mm sizes to fine tune travel and rider fit - Cable-actuated under-bar lever compatible with SRAM MatchMaker and Shimano I-Spec II - 2-bolt rocker head with micro adjustment allows for easy saddle tilt adjustment - Internal cable routing keeps housing tucked away and free from moving wheel - Includes cable, housing, and 1x under-bar remote lever - On-Bar Universal Lever sold separately
$114.99 - $120.99
The forged alloy construction of the Bontrager Pro Blendr Stem delivers stiffness without compromising its light weight or sleek looks. Easy integration of lights, a computer, and more with the Blendr integration system make this stem a perfect upgrade for any bike. - Pro-level quality 31.8mm clamp diameter stem weighs less than many carbon stems - 4-bolt dual band clamp securely holds handlebar - Uses high-quality M5 corrosion-resistant faceplate bolts with 5.2Nm torque spec - Integrate accessories with included Blendr Pro base and Blendr XXX accessory mounts - Mounts intended for use with Ion and Trip, Garmin, GoPro and SRM accessories - Approved for carbon bars and steerer tubes - Safe installation requires 5mm spacer above and below stem - Included Blendr accessories: Pro Mono Base, Trip Computer mount, and High Ion Light mount
$14.99
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
$16.99
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
$19.99 - $20.00
- Silicone foam blend provides excellent grip and shock absorption - Simple design maximizes durability and minimizes weight - 32mm diameter
$1.50
• Designed to keep dust and dirt out of V-Brake cable/housing systems
$129.99 - $149.99
The Ajna Elite is the cutout saddle that every serious female rider can appreciate. Built to be at home on either your road or mountain bike in an aggressive Posture 2 position, the Ajna's shape offers increased stability at the nose and better pressure distribution throughout. Key features: - An aggressive Posture 2 saddle that excels both on the road and mountain bike - Engineered specifically to yield better fit and greater comfort for women - Suspended hollow Ti rails increase compliance for ultimate comfort - Wider cutout and shaped nose yield stable comfort in an aggressive position - Contour Relief Zone Plus (CRZ+) full saddle cutaway enhances soft tissue protection - Carbon fiber-reinforced shell strikes a balance between strength and light weight - inForm BioDynamic products optimize your natural movement for sustained, higher performance
$120.99
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
$11.99 - $15.00
With this clever little clamp you can quickly retro-fit any bike for a rear rack. Threaded eyelets are built into the clamp for easy, secure mounting on non-eyeleted or smaller frames. - Features threaded eyelets for rear rack mounting solutions on unique bike frames - Quick release (QR) versions include rubber lever grip
$15.00 - $18.00
Keep your seatpost right where you left it. Upgrade to a quick release seatpost clamp for easy seat height adjustments. - Follow laser-etched torque listing on collar
$64.99
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 Elite accessory integration. - Seamless accessory integration with Blendr Elite - 6061-T6, 3D, forged alloy construction - 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 - Includes one Blendr base to integrate Ion lights and Trip computers
$29.99
Upgrade or refresh your Bontrager wheels. - Replacement axle end caps - Compatible with Bontrager Elite-level hubs
$149.99 - $159.99
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
$19.99 - $22.00
This classic bar tape combines the traditional feel of natural cork with the vibration damping power of gel for a comfortable ride feel and a clean aesthetic that will never go out of style. It's easy to install and comes with Bontrager finishing strips and bar end plugs. - Gel tape with natural cork feel - Ideal stretch for quick and easy installation - Inner gel strip for extra comfort - Finishing strips and reflective Bontrager bar end plugs included - Non-adhesive backing
$24.99 - $27.99
Lock on to the trail Confidently handle any trail with the SE Elite mountain bike grip. This 32mm single lock-on grip with core lock clamps holds tight on any terrain, and a unique opposing tread pattern provides the perfect amount of padding for your palms while providing traction at your fingertips. Key features - Opposing tread design absorbs shock in palms with a biting grip in fingers - Rubber compound and design 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
$64.99 - $67.99
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
$99.99
Our most versatile performance saddle offers a full cutout for targeted support and soft tissue pressure relief for riders of all genders and all disciplines. For mountain, for road, for men, for women Our most versatile performance saddle puts you in a power posture for speed and control wherever you ride—and it’s available in an wide range of sizes to ensure you get the fit you need. A full cutout ensures long-haul comfort for all riders and all terrain. Plus, it has longer saddle rails to tailor your fit and an integrated Blendr mount for a Flare tail light. Product details - Saddle design supports riders of all genders in a performance riding position on road and mountain bikes - Full saddle cutout minimizes soft tissue pressure for lasting comfort and performance - Lightweight shell provides balance of weight, strength, and compliance - Comp-level trim optimizes foam padding for added lightweight comfort - Multiple widths and extended rail clamping area give more fit options - inForm saddles are born of cutting-edge biomechanical research to maximize performance and rider comfort - Available Blendr accessory mounts to cleanly integrate rear light
$26.00
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.
$59.99
Genuine replacement parts When it's time to refresh your trusty bike, Trek Genuine Replacement Parts have you covered. Details: - Replacement cartridge units for Bontrager Line Dropper seat posts - Be sure to use the correct size cartridge for the respective amount of travel - Regular maintenance will help maintain performance and extend the lifespan
$199.99 - $209.99
Bontrager's Speed Concept Seatpost lets you get your aero fit dialed. Different offsets allow you to customize your riding position for superior ergonomics and aerodynamics, and the clamp is compatible with both standard and oversize saddle rails. This seatpost is compatible with 2014 Trek Speed Concept 9 Series bikes.
$104.99
An aluminum handlebar with IsoZone pads that displace vibration and a compact flare that increases wrist clearance. Integrated comfort 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. This alloy bar features a Variable Radius Compact Flare (VR-CF) shape for extra room in the drops. - Custom-butted, 6066-T6 alloy construction - Variable Radius Compact Flare (VR-CF) increases wrist clearance for ergonomic positions - 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 setup
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