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Bontrager Parts
Searching for the best bike parts?
Whether you need something small like a brake cable or you're looking to upgrade to a sweet new set of bars, Bontrager delivers every time. You'll love their lightweight and durable components and their dependable, affordable parts.
Want to see more from Bontrager? View all Bontrager
$681.99
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
$366.99
An integrated handlebar/stem that delivers aesthetically pleasing performance in a lightweight package.
Lust worthy looks, elevated performance
Elevate your ride and upgrade to the Bontrager RSL MTB Handlebar/Stem for a super-clean one-piece carbon combo. This OCLV Carbon bar sets the benchmark for lightweight durability, and with Blendr allowing seamless integration of electronics, your cockpit has never looked or performed better.
RSL MTB Handlebar/Stem is compatible with both Knock Block and standard type headsets, so there's no excuse not to make the switch to this drool-worthy performance piece.
Product details
- OCLV Carbon construction is the benchmark for durability and light weight
- Compatibility with Knock Block and standard headset types (adapter included)
- Seamless accessory integration with Blendr (mounts sold separately)
- Shifter and brake lever position lines for spot-on control setup
- 40mm trim lines allow for a personalized fit
- Titanium hardware is lightweight and long-lasting
$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
$340.99
A carbon road handlebar with IsoCore that reduces road vibration by 20% and features a shallow-flared drop and shorter-reach design.
All-road comfort
Take on longer rides and rougher roads with the Pro IsoCore road handlebars, which can cut road vibration by 20% for a more comfortable, less-fatiguing ride on all-day gran fondos and gravel. Together, the IsoCore inner-laminar technology and IsoZone padding virtually eliminate road chatter. This OCLV Carbon bar features Di2 compatible ports for clean internal wire routing when integrated with Shimano EW-RS910 bar-mounted Di2 junction.
- OCLV Carbon with IsoCore continuous inner-laminar technology
- Replaceable IsoZone EVA pads maintain original grip diameter
- Confidently access brake levers while in the drops with the shorter reach and Variable Radius Shallow Flare (VR-SF) design
- IsoCore technology decreases road vibration by 20% over traditional carbon bars
- Compatible with clip-on aero bars
- Includes two replaceable EVA IsoZone top-of-bar pads
- Compatible with Shimano EW-RS910 bar end Junction-A for cleaner Di2 routing
$299.99
$340.99
12% Off
Take on longer rides and rougher roads with Bontrager's Pro IsoCore road handlebars. Feel the difference 20% less road vibrations can make on your next gravel grinder or gran fondo. IsoCore inner-laminar technology and IsoZone padding combine to virtually eliminate road chatter while maintaining the strength of our OCLV carbon.
$240.99
Comfort without sacrificing power
Aeolus Pro brings comfort, power, and speed to road riders looking to dig deep and rotate further forward into a more aero position. This uber-light, race-ready saddle was tested and pressure mapped with male and female athletes for the ultimate in proven performance. A shorter overall length with a wider nose and full cut-out ensure targeted support that eliminates soft-tissue pressure for both men and women.
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
- Oversized carbon rails for lightweight strength. Specific seatpost ear clamps required
- Lightweight carbon-reinforced shell provides perfect balance of weight, strength, and compliance
- Minimal Pro-level padding offers sleek profile that shaves weight
- Available Blendr accessory mounts to cleanly integrate rear light
$209.99
Ultra-light comfort and control
The all-new RSL 27.2 Seatpost is an ultra-lightest carbon seat post, that now comes with an all-new design with a CnD shape profile for a more controlled and forgiving ride experience.
An ultra-light carbon seatpost with unique shape profile for increased compliance.
- CnD shape profile increases torsional stiffness and vertical compliance
- Designed to offer increased compliance at maximum and minimum insertion points
- 2-bolt design offers independent setback and tilt adjustments (+/- 12 degrees)
- 100% OCLV Carbon fiber shaft and head
- Includes 7x7mm round rail clamp compatibility
- Carbon 7x10mm saddle ears sold separately
$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.
$199.99
A reliable dropper seatpost with a 3-key chassis design that minimizes shaft play for a post that provides smooth and consistent travel adjustment.
GET UP TO GET DOWN
The Bontrager Line 31.6 dropper seatpost offers reliable and infinite adjustability within multiple dropping ranges to suit riders of all types. A 3-keyed chassis design provides additional lateral rigidity and minimizes play while a 2-bolt rocker head is perfect for fine-tuning saddle tilt. Line 31.6 is also designed with a shorter overall length, which allows more adjustability and frame compatibility.
Need an even shorter drop? Grab a 10mm or 30mm travel reducer spacer.
PRODUCT DETAILS
- Air-sprung hydraulic locking cartridge offers infinite adjustability within dropping range
- 3-key chassis prevents rotation for a stable ride
- 2-bolt rocker head with micro adjustment allows for easy saddle tilt adjustment
- Shorter overall length [versus previous version] allows more adjustability and compatibility
- Fine-tune your fit fast and easy with 10mm and 30mm travel reducer spacers
- Lever sold separately. Compatible with Universal Lever, Under Bar Lever, and Elite Under Bar Lever
- Internal cable routing keeps housing tucked away and free from moving wheel
- Frame must be compatible with internally routed seatpost routing
$189.99
$240.99
21% Off
Versatile and ultra-light, the Verse Pro gets a shorter profile for elevated comfort for riders of all genders and disciplines.
Less is more
A shorter profile elevates comfort across all riding positions for the top trim level of our most versatile performance saddle. Verse Elite’s targeted support and versatile design is ideal for all riders and genders. Carbon rails and a composite shell keep it ultra-light with added compliance. A full cutout ensures long-haul comfort, and Wing Flex allows the saddle shell's side edges adapt to riders’ inner leg movements and pelvic rotation.
Product details:
- Short profile provides targeted support for riders of any gender in a performance riding position
- Wing Flex allows the shell's edges to adapt to rider's inner legs movement and pelvic rotation
- Full saddle cutout minimizes soft tissue pressure for lasting comfort and performance
- Lightweight carbon-reinforced shell perfectly balances weight, strength, and compliance
- Oversized carbon rails for lightweight strength (specific seat post ear clamps required)
- 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
- Blendr accessory mounts offer clean integrated mount for rear Flare light
Features:
For men, for women, for mountain, for road.
Verse Short is designed to add comfort for all genders. It's your go-to performance posture saddle for both trail and road.
Short profile
The short profile provides targeted support and a performance riding position for all genders.
Wing flex
Wing flex allows the saddle shell's side edges to flex and adapt to a rider's inner leg movement and pelvic rotation.
Full-length cutout
A full saddle cutout minimizes soft tissue pressure for lasting comfort and performance.
Blendr integration
Easily mount Bontrager Flare rear lights with the Blendr accessory mount, available separately.
$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
$125.99
Lock it and drop it
Upgrade the look and feel of your MTB XC race cockpit with the DropLock Remote. By combining a dual-suspension lockout remote with an integrated dropper lever, you get a single remote that controls the functions of your suspension and dropper post. For the lockout, a single button controls both the on and off function of front and rear suspension.
A single remote that combines a dropper lever with a dual-control suspension lockout for simple operation and clean setup.
- Integrated dropper and dual-remote lockout lever for a cleaner cockpit
- Single lockout lever controls both on/off
- Removeable dropper lever
- Compatible with mechanically activated droppers and suspension lockout systems
$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
$120.99
A light, durable 35mm MTB stem that adds Blendr capability for clean, integrated mounting of lights or computer.
Equip your whip with this 35mm Line Pro stem and give yourself the oversized advantage. Forged from light and strong 7075-T73 3D aluminum, the oversized 35mm design offers increased strength and a lighter overall bar and stem system weight. Use with included Blendr base and mount for integrated mounting options for light or computer.
Product details
- 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
- High-strength, corrosion-resistant steel bolts
- Includes Blendr mono base, Garmin Mount, and Ion Light Mount
- Approved for carbon bars
$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
$104.99
Bontrager's Elite VR-C handlebar is designed for high-performance handling, comfort, and confidence. The 6061-T6 aluminum alloy construction in a proven ergonomic compact shape helps you find comfort on all-day rides and chase down surprise attacks when you need to.
- Ultra-light custom-butted 7050 alloy construction
- Variable-Radius Compact (VR-C) design allows shorter reach and drop
- Compatible with clip-on aero bars
$99.99
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
$99.99
Custom-drawn aluminum construction, a two-bolt rocker head, and longer saddle rail clamps make Bontrager's Rhythm Pro Seatpost a great choice for riders who need a no-nonsense, tough-as-nails seatpost for the mountain bike. It's available in two different diameters to suit your frame.
$93.99
The drag-defying profile of Bontrager's Elite Aero VR-CF Handlebar is proven to save up to 23 seconds per hour over a traditional round handlebar. Take advantage of the shaped 6066-T6 aluminum and internal routing, and bring your ride's aerodynamics to the next level.
- Custom-butted, 6066-T6 alloy construction
- Variable Radius Compact Flare (VR-CF) increases wrist clearance for ergonomic positions
- Compatible with clip-on aero bars
- Aero drop bar profile is more aerodynamic compared to traditional round bars
- Internal cable routing for Di2 and standard housing
- Laser-etched brake lever position lines for spot-on control setup
- UCI compliant
$74.99
A comfort saddle with a patented fluid technology that moves freely with you as you pedal for less pressure and more comfort.
Bontrager's Boulevard Fluid saddle puts your comfort first with patented fluid technology that moves with you to reduce pressure while you're pedaling. The full cutout design and air foam deliver a difference you can feel on casual cruises through your town and neighborhood. Plus, it has an integrated mount for a tail light!
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
$74.99
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
$67.99
Great for road or mountain use, the Elite stem features Blendr compatibility to get you and your accessories in the position you need.
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
$67.99
Great for road or mountain use, the Elite stem features Blendr compatibility to get you and your accessories in the position you need.
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
$64.99
An aluminum road handlebar with a versatile shape that is suitable for the widest range of road cycling.
FLARED CONFIDENCE
The Bontrager Comp Road Handlebar is built around an Endurance Fit that offers everyone a comfortable and confident riding position. With 10 degrees of flare and hoods that are 4cm narrower than the drops, there's ample wrist clearance for everyday riding as well as your hardest sprints. Laser-etched setup guides, a shot-peened finish, and clip-on aerobar compatibility round out the Comp Road Handlebar's excellent versatile package.
PRODUCT DETAILS
- Lightweight 6061-T6 aluminum
- Hoods measure 4cm narrower than drops
- 10 degrees of flare provides confidence in the drops and ample wrist clearance
- Compatible with clip-on aero bars
- Laser-etched brake lever position lines for spot-on control setup
- Shot-peened finish increases fatigue life
- Endurance Fit offers everyone a comfortable and confident riding position
$59.99
Repair or refresh your Bontrager seatpost.
GENUINE REPLACEMENT PARTS
When it's time to refresh your trusty bike, Trek genuine replacement parts have you covered.
PRODUCT DETAILS
- Replacement cartridge unit for Bontrager Line Dropper 31.6mm seatposts
- Regular maintenance will help maintain performance and e/tend lifespan
- Cartridge assembly includes bump stop and locknut
- Refer to Service Manual for assembly instructions and service
$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
$57.99
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
$52.99
Key features:
- Designed for use on carbon rims
- Confirm wheel compatibility before use
- Use in mud and grit will accelerate rim wear
- 520554 is the Shimano style Flash Evo and fits Shimano and SRAM
- 520555 is the Campagnolo style Race Pro
$51.99
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
$51.99
The Bontrager Comp VR-S road bar offers a shorter drop and reach, while still retaining the classic Variable Radius shape, providing quick, comfortable transitions from the hoods to the drops for sprints.
- Custom-butted, 6061-T6 alloy construction
- Variable Radius-Short (VR-S) bar shape features a shallow drop with shorter reach, optimized for riders who prefer a less aggressive posture
- 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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