Stems

On today’s road bikes, silver stands out amid the sea of stealthy black color schemes. This time-honored color is available on the Zipp Service Course stem. Since the introduction of our line of Service Course and Service Course SL components, we’ve had amazing success with our pro-level athletes in all disciplines. While the successes have reinforced our design decisions, we have also drawn from their feedback. We not only learned how and why athletes make their equipment choices, but how our manufacturing methods and materials affect product performance. With new knowledge as well as new engineering methods, we are proud to introduce our completely redesigned line of Service Course and Service Course SL stems. - Class-leading stiffness-to-weight ratio - More options for a better fit - New faceplate and geometry for greater stiffness and easier installation - Distinctive silver finish

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

Stiff and light with the cleanest accessory solutions available When all you need is the right position, the Elite stem gets it done and more. The strong and light alloy stem is your bike's best workhorse and also features Blendr accessory integration for a sleek setup. Key features - 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 - Safe for use on carbon steerer tubes and handlebars - Includes one Blendr base to integrate Ion lights and Trip computers.

- Highly weight optimized single crown stem, ideal for Enduro applications with 31.8mm handlebars - Human Factor Design features micro increment size options, tuned to fit any rider size and style - Human Factor cockpit setup index facilitates tuning of upsweep and backsweep - Ultra-short stack height and true zero degree rise - Chamfered bar clamp to reduce stress risers and increase fatigue life in handlebars - Forged 2-piece faceplate design reduces overall weight without compromising bar clamp security or stiffness - Shot peen-anodized surface increases strength, durability, and fatigue life

The Burns V2 improves upon the original with larger-head bolts and a refined shape. Run it right-side-up or upside-down - like Sean himself. - 6061-T6 alloy, cold forged with full cnc finish - Unique offset rear for improved clamping - Can also be run flipped for lower rise - Bar Clamp Diameter (mm): 22.2 - Reach: 50 mm - Rise: 23 mm - Steerer Clamp Diameter: 1-1/8-inch - Stack Height: 32 - Weight (oz): 11.48 - Stem Type: Top Load

The Dune stem top loader looks incredibly clean thanks to a sunken area for the fork top bolt.This sturdy unit features a taller 31mm rise and an extra wide clamping area to hold your bars extra tight. - 6061-T6 alloy, cold forged with full cnc finish - 6mm micro head bolts - Unique offset rear for improved clamping - CNC machined underside for weight reduction

Every Profile Design product is perfectly optimized to minimize aerodynamic drag. So, it's no surprise that Profile's Aeria Stem has hidden bolts and a low profile faceplate to smooth oncoming air. The sculpted shape is constructed from strong, lightweight forged aluminum, and the 17-degree drop ensures an aerodynamic fit on your time trial or triathlon bike.

Zipp's Service Course SL-OS Stem provides lightweight strength and versatility to help you achieve the perfect riding position. At only 140 grams, the Service Course keeps your rig light while maintaining toughness for the long haul. Change the angle of the stem quickly and easily with the included shim that lets you tailor your comfort even more. And, the Service Course works with both 1 1/8-inch steerers and 1 1/4-inch. • Included shims allow the stem's rise to be adjusted to 4°, 6°, or 8° angles.

For 56 years, 3T products have offered a combination of Italian elegance and performance. The Apto once again combines both with a beautiful shape and a lightweight, stiff and strong structure. The reversed bolts clean up the faceplate, while their wide spacing increases the connection to the handlebars. Its double steerer bolts (Titanium in case of the TEAM version) securely hold the stem in place.

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.

Upgrade your ride with the gram-shaving EA90 stem from Easton. This ultra-light bar-holder sports Easton's 3D forged aluminum to provide a great balance of low weight, high strength and stiffness for excellent steering control in all conditions. Easton's Top-Lock technology locks the stem and faceplate together, allowing for a highly rigid interface while minimizing loads on the bolts so the EA90 is perfectly safe for carbon bars.

Trim some weight and add some style to your ride with Bontrager's RXL Stem. Made from forged 7050-T6 aluminum, this stem is exceptionally light and strong. In fact, it's equally suited to the sharp impacts of mountain biking as it is to the long-mile rigors of the road. And, its shot-peened finish offers exceptional strength while the 4-bolt faceplate makes installation easy, and the opposed-bolt steerer clamp is carbon friendly.

Thomson's Elite X2 Road 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 X2 combines exceptional strength with light weight for a stiff stem and total control on all your rides. It has a two-bolt clamp design that's just as strong as four-bolt designs thanks to Thomson's interlocking interface and it also cuts down on the weight. Plus, the stem's low 36mm stack height gives you more options for customizing your position. And, thanks to their reversible graphics, your X2 looks great whether you run a positive or negative rise.

An oversized 35mm stem that is lightweight and durable for the burliest mountain riders. Oversized and in control Equip your whip with this 35mm Line Pro stem and give yourself the oversized advantage. 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. Product details - 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 - Compatible with both Knock Block and standard headsets and spacers - Knock Block system protects the frame from impacts by fork and handlebars by eliminating over-rotation of bars - High-strength corrosion-resistant steel bolts ensure the freshest look for longer - Available in a wide range of sizes for today's mountain rider - Safe for carbon bars

For 56 years, 3T products have offered a combination of Italian elegance and performance. The Apto once again combines both with a beautiful shape and a lightweight, stiff and strong structure. The reversed bolts clean up the faceplate, while their wide spacing increases the connection to the handlebars. Its double steerer bolts (Titanium in case of the TEAM version) securely hold the stem in place.

the Pro LT stem is constructed of strong and lightweight anodized 6061 alloy, and features a headlock system for a secure front clamp fixation.

Some might call it magic—PRO likes to refer to it as co-creation: aligning all forces to work in favor of you. The PRO Vibe Stem is designed to align your cockpit perfectly with your bike for an optimal riding position. Supreme stiffness offers you more control during those high-speed descents or maneuvers. It's also developed for ultimate integration with Di2 to give you maximum aerodynamic performance and ultra-clean styling. With the specially positioned cable ports, you can internally route Shimano Di2 cables. All of the advantages of Di2, with none of the cables showing. Align yourself with performance—use the PRO Vibe Stem. - Anodized AL-7075 - Shimano DI2 integration - Lightweight titanium bolts - Integrated topcap

Inspired by the aggressive lines and flowing silhouette of our favorite muscle cars, the Intake Direct Mount DH Stem is both fast and furious. Make no mistake, the added control and response of the ultra-wide 69mm clamping platform will take seconds off your time. - Zero degree rise to keep you low and in control - CNC Machined from a solid block of aluminum - Boxxer Standard platform - 7075 T73 Aluminum - 69mm wide clamping platform for an incredibly stiff front end - Bar Clamp Diameter (mm): 31.8 mm - Material: Aluminum - Length: 50 mm - Stem Angle (deg): 0 deg - Rise: 0 - S.H.I.S. Stem Clamp Diameter: Direct Mount - Weight: 146 g

The Cavity stem was developed with pain staking focus on strength, function and attention to detail. Tapered body for cleaner lines and weight reduction, multiple internal and external machining processes to reduce every gram possible and chamfered edges throughout for stunning detail. - Machined from 6061 T6 aluminum - Wide 55mm faceplate for increased stiffness with wide handlebars - Rounded edges at all sides, corners, and angles - Reverse cross bolt system for increased clamping power - Flip flop design for increased range of height adjustment - Pro Installation Tip: Always run the steerer tube all of the way through the stem with a small spacer on top - Bar Clamp Diameter (mm): 31.8 mm - Material: Aluminum - Stem Angle (deg): 0 deg - S.H.I.S. Stem Clamp Diameter: 28.6 - Stack Height: 33 - Weight: 150 g

Zipp's Service Course Stem is strong, light, and reliable. Forged of 7075 aluminum with stainless steel bolts, the Service Course is stiff enough to harness the power of your burliest sprints and withstand the jarring forces of the meanest potholes. It keeps the front end completely rigid, providing control no matter the condition.

Lightweight and strong forged alloy stem. - Adjustable between 0 and +60 - Removable face plate for easy installation. - 180mm quill length.

3D forged 6061-T6 Aluminum. - Excellent value and performance - A great way to try a few different stems - Suitable for Road or XC MTB - Sand-blasted black finish - + / - 7 degree - 1-1/8" steerer, 31.8 mm bar clamp

It’s low-slung, stiff, aggressive and serves up support and control the way a direct mount stem should. The Descendant direct mount stem may have been designed to attack the race clock, but it was built tough, to take on whatever comes next. No matter where you take it, this Descendant stem will keep you pointed where you want to go. - Pair with BoXXer fork - Gives DH riders lower more aggressive position - Super-stiff, stable front-end handling - Lightweight - Two-piece design

For 56 years, 3T products have offered a combination of Italian elegance and performance. The Apto once again combines both with a beautiful shape and a lightweight, stiff and strong structure. The reversed bolts clean up the faceplate, while their wide spacing increases the connection to the handlebars. Its double steerer bolts securely hold the stem in place.

Zipp's Service Course SL Stem provides strength and reliability at just 120 grams. Forged of 7075 aluminum with titanium bolts, the SL is stiff enough to harness the power of your burliest sprints and withstand the jarring forces of the meanest potholes. It keeps the front end completely rigid, providing control no matter the condition.

Arx, Latin for stronghold and bridge, is 3T’s race-proven design for the perfect connection between fork and handlebar and suited to all cycling disciplines. Clamp design is optimized to ensure a secure fit on composite steerers and bars without the need for potentially damaging high torque values during assembly. 3T inhouse tests show Arx’s clamp by far exceeds the CEN standard, and also that it works very well with other brands of handlebar. Arx Ltd is the carbon-fiber version of the stem, with Ti bolts. Super-light and super-stiff, it is a highly evolved, modern design weighing just 118g.

Mix and Match might work for clothing, but not your mountain bike cockpit. The new Descendant stem is 3D forged from 7075 alloy, then machined for weight reduction, and is the perfect match for your Descendant bars. Built strong, to take on the world’s toughest trails, Descendant stems keep you pointed in the right direction. - Perfect match with Descendant handlebars - 3D forged 7075 - CNC machined for weight reduction - Four bolt handlebar clamp - Two bolt steerer clamp

TruVativ's Stylo T20 stem is 3D forged for that perfect balance of light weight, stiffness and control on the trail. Four bolts securely attach the face plate and make changing out handlebars a breeze.

- 3D forged AL-2014 construction - Sizes: 50 - 130mm, 10 deg. angle - Suitable for 1-1/8" forks - Diameter handlebar clamp: 31.8mm - Headlock system for a secure front clamp fixation

Lightweight and strong forged alloy stem. - Adjustable between 0 and +60 - Removable face plate for easy installation