Stems

The Bontrager Comp 31.8 stem is Blendr ready and provides a secure and confident connection to 31.8 handlebars for road, city, and mountain bikes.



- 6061-T6 cast body construction

- 4-bolt dual band clamp retains stiffness and reduces weight

- Opposing 2-bolt steerer tube clamp with M5 corrosion resistant steel bolts

- Blendr ready for seamless accessory integration

- Compatible with Blendr Elite bases and Blendr mounts

- Suitable for use on a road, city, or mountain bike

- Safe for use on carbon steerer tubes and handlebars

An ultralight OCLV Carbon stem with flush-fit faceplate bands and Blendr integration for a clean look.



The lightweight stem for seamless integration

OCLV Carbon construction of the RSL Blendr stem combines lightweight strength with a classy aesthetic. It's equipped with captured titanium hardware that ensures you never drop bolts again, and the dual-banded faceplate shaves weight and works seamlessly with mounted accessories using the Blendr integration system.



Product details

- Ultra-light OCLV Carbon construction

- Flush-fit 4-bolt dual band bar clamps offer seamless look

- Captured Titanium screws save weight while making installation easy

- Integrate accessories with included Blendr Mono Base and Blendr Ion and Garmin mounts

- Mounts available for use with Ion and Trip, Garmin, GoPro, and SRM accessories

- Approved for carbon bars and steerer tubes

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

Positioned for power

The Trek Aero RSL Road Integrated Handlebar/Stem is built upon our Race Fit, with a shorter reach and hoods that are 3cm narrower than the drops. This moves you into a more comfortable ergonomic riding position that greatly reduces rider drag for an extra aerodynamic advantage.

A 6-degree flare allows for ample wrist clearance and control, so you don't lose any power or comfort in explosive sprinting moments. Plus, riders get the weight-saving and aerodynamic advantage of a single-piece bar combined with stem.

Product details
- OCLV Carbon construction is ultra-light, compliant, and durable
- 7-degrees of ergonomic backsweep reduces rider drag for extra aerodynamic speed and comfort
- Hoods measure 3cm narrower than drops
- 6-degree flare provides ample wrist clearance for sprinting
- Aero RSL Pro Blendr mount and Barstem Top Cover sold separately
- Electronic shift compatibility only
- Compatible with Madone Gen 8, Checkmate SLR, & Checkpoint SL Gen 3 (requires additional parts)

Genuine replacement parts

Features KVF shaping and integrated design for unbelievable aerodynamics and stiffness.

Features
- Not compatible with other bikes
- Variable radius, compact flare (VR-CF) shape offers wrist clearance in the drops
- 100% OCLV carbon fiber construction
- Seamless integration with Blendr accessory bases and mounts, sold separately

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. - 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

A lightweight alloy stem with a flush mount top cap and seamless cable routing offer a fully integrated and elegant aesthetic.



Integrated elegance

The RCS Pro Blendr Stem is a sleek alloy stem offering all of the performance you crave, with looks to match. Specifically designed for use with model year 2023 Domane SL, SLR, and RSL bikes, this stem fits seamlessly with the headset top cap to provide ultimate integrated elegance. A flush mount top cap, under-stem cable routing cover, and Blendr compatibility further add beauty and sophistication.



Product details

- Lightweight 7075 alloy construction

- High-quality M5 corrosion-resistant face plate bolts with 5.2Nm torque spec

- Cable routing cover keeps up to six cables and wires tidy under stem

- Included Blendr Duo Base makes it easy to integrate accessories

- Blendr accessory mounts sold separately

- Compatible with model year 2023 Domane SL, SLR, RSL bikes

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

An oversized 35mm clamp diameter stem suitable for all disciplines of mountain biking.



Oversized strength

The Elite 35 stem is the perfect addition to any mountain bikers' cockpit. Forged from lightweight 6061-T6 3D aluminum, the oversized 35mm design offers increased strength and a lighter overall bar and stem system.



Product details

- Oversized 35mm clamp diameter offers increased strength and minimal weight

- 6061-T6 3D forged aluminum construction

- Laser-etched calibration marks make dialing in the perfect angle simple and repeatable

- Compatible with both Knock Block and standard headsets and spacers

- High-strength, corrosion-resistant steel bolts

- Approved for use with carbon handlebars

Run your favorite 31.8mm clamping diameter handlebar on a bike with Knock Block with the Rhythm Comp 31.8. It adds Knock Block compatibility to a durable stem with multiple lengths to let you fine-tune the fit to your ride. Get 31.8mm handlebar compatibility with your Knock Block system;Also compatible with standard headsets and spacers;Knock Block system protects frame from impacts by fork and handlebars by eliminating over-rotation of bars;Available in a wide range of sizes for today's mountain rider;See Service Parts for other Knock Block parts;

Genuine replacement parts

Get back on the road with a genuine replacement stem



For optimal adjustability.



- Bontrager adjustable stems

- Available in several lengths

- Includes M6 x 40mm bolt

Features a wide range of adjustment to dial in your fit.



Ensure a proper fit for the best ride experience.



Product details

- High-quality alloy adjustable stem is quill-style, for use with threaded forks

- Seamless integration with Bontrager's Elite Blendr mount kit, sold separately

- Features 64 degrees of angular adjustment

- 50mm stack height adjustment allows for a wide-range of fit options

- Quill stem length is 180mm

Genuine replacement parts Get back on the road with a genuine replacement stem. For optimal adjustability. - High-quality alloy adjustable stem is compatible with threadless forks - Features 64-degree angular adjustment for a wide range of fit needs - 4-bolt dual band clamp retains stiffness and reduces weight - Blendr ready for seamless accessory integration - Compatible with Blendr Comp & Legacy Elite bases and mounts, sold separately - Other parts are required to install this on a bike, you will be prompted to add the appropriate parts to your cart along with this item

Get back on the road with a genuine replacement stem. Original replacement stem for your bike. PRODUCT DETAILS - Choose the right stem length - Includes mounting bolts

Get back on the road with a genuine replacement stem. Original replacement stem for your bike. PRODUCT DETAILS - Choose the right stem length - Includes mounting bolts

Get back on the road with a genuine replacement stem. Original replacement stem for your Electra. PRODUCT DETAILS - Quill stem for threaded forks - Original equipment for select Electra models

• Forged aluminum • Single-bolt clamp • 180mm tall

• Forged aluminum • 2-bolt clamp • 180mm tall

The Elite X4 Mountain Stem is instantly recognizable because of Thomson's legendary style, and with strength to spare, this stem is more than just a pretty face. Made from a solid, one-piece block of 7000-series aluminum, the X4 combines exceptional strength with light weight for durable, solid steering control to tame the toughest trails. It has a four-bolt clamp design and reversible graphics, so your X4 looks great whichever way you run it.

- 3D forged 6061 alloy road stems in 6 or 17 degree angles - Lightweight 4 bolt faceplate - Material: AL6061-T6 - Finish: Sandblasted

Equip your whip with this 35mm Line Pro stem and give yourself the oversized advantage today. Forged from 6061-T6 3D aluminum, this finely finished stem provides the increased strength of the latest mountain-specific bar diameter at the lightest weight possible. - Pro-level quality stem in oversized 35mm clamp diameter for increased strength and minimal weight - Forged from 6061-T6 3D aluminum - Laser etched calibration marks make dialing in the perfect angle simple and repeatable - High-strength corrosion-resistant steel bolts to ensure the freshest look for longer - Available in a wide range of sizes for today's mountain rider - Safe for carbon bars

Making its debut on the all-new Roubaix the S-Works Future stem is the stiff lightweight upgrade that your Roubaix has been waiting for. It's compatible with all Future Shocks and our Specialized accessory mount and its sleek design will create a seamless integration. - Sleek & seamless integration with all Future Shocks. - Supremely stiff for responsive handling and feel. - Compatible with the Specialized accesory mount. - 6-degree rise - Length options: 70-140mm - Approximate weight: 145g (100mm)

Ritchey's 4-Axis Adjustable Stem features a precision 3D-Net shaped forged shaft that interconnects with a precision broached clamp to create the strongest, lightest, most secure adjustable stem available. - Stainless steel bar and steerer clamp bolts - Stack Height: 40 - Weight: 219g

Get back on the road with a genuine replacement stem. Original equipment replacement stem for your Madone SLR. PRODUCT DETAILS - High fit stem is 7-degrees of drop - Not compatible with other bikes - For installation instructions, please see your Madone Assembly Manual

A 3D-forged, then precision-machined, lightweight, aluminum mountain bike stem in both 31.8mm and 35.0mm models rated for cross country, trail, all-mountain, enduro, and gravity applications. - Blind bolt holes and shaping - Cold-forged and precision-machined - No-gap face plate and clamp area - Stainless hardware

The S-Works Venge stem has been designed to work as a system with the Venge cockpit to optimize aerodynamics, stiffness, and weight. - Seamless integration with the 2019 Venge frame and hidden cables - Optimized for use with the S-Works Aerofly II handlebars for integration - Its dropped clamp and flat upper profile cheat the wind for the maximum aero advantage - Extremely stiff for responsive handling and out of the saddle sprinting

Get back on the road with a genuine replacement stem.



Original equipment replacement stem for your Madone SLR.



PRODUCT DETAILS

- Low fit stem is to be used to create an H1 comparable fit

- Not compatible with other bikes

- For installation instructions, please see your Madone Assembly Manual

Original equipment for your Madone. Genuine replacement parts Proprietary stem to dial in your fit. PRODUCT DETAILS - Original equipment integrated stem Trek Madone SLR bikes - Not compatible with other bikes - High fit stem is 7-degrees of drop - For installation instructions, please see the Madone Assembly Manual - Go green and save green - Zero packaging means zero waste & zero extra cost

Original equipment for your Madone. Genuine replacement parts Proprietary stem to dial in your fit. PRODUCT DETAILS - Original equipment integrated stem Trek Madone SLR bikes - Not compatible with other bikes - Low-fit stem is to be used to create an H1 comparable fit - For installation instructions, please see the Madone Assembly Manual - Go green and save green - Zero packaging means zero waste & zero extra cost

Genuine replacement parts

Achieve your ultimate aerodynamic goals.

Features
- Bar only. Extensions, arm pads and hardware not included
- Accessories are available separately
- UCI legal