Mass is the enemy of performance, so we pulled out all the stops to make the Alpinist Cockpit the lightest one-piece bar/stem combo that passes our standards; at 255 grams (110 mm x 420mm). Not only does light weight make for faster climbing, it also improves acceleration and ride quality. The Alpinist Cockpit's round tube shape and tradition bend respect tried and true forms, but the optimized composite layup and internal cable routing are decidedly modern. Available in 10 sizes, there's one that will fit you perfectly. And because they are backed by a no-fault crash replacement policy and lifetime warranty, you can rest easy knowing that we've got your back. - Bend: Tradition radius ( 125mm Drop / 75mm Reach) - Clamp Diameter: 31.8 - Compatibility: Shimano, SRAM, Campagnolo; Di2 and EPS - Material: Advanced carbon composite - Sizes: 400 mm x 80/90/100mm; 420mm x 90/100/110/120mm; 440mm x 110/120/130mm - Stem Angle (Rise): 6-Degrees - System Weight Limit: 275lbs / 125kg - Weight: 255 grams (110 mm x 420 mm)
Ritchey's first full-carbon stem was designed to meet the needs of high-wattage European Classics specialists. The Carbon C260 adds to the amazing strength-to-weight ratio of our C260 alloy and Carbon Matrix stems through the use of high modulus carbon fiber, increased boom diameter, and a wider clamp. Gram-for-gram, this is the lightest, stiffest full carbon stem on the market, making it the most advanced Ritchey stem ever. - C260 bar clamp creates a larger stem-to-bar interface, drastically reducing bolt stress - 4 x T-20 faceplate bolts and patented 260-degree bar clamp design reduces weight, increases stiffness, and distributes stress more evenly - 3 x T-20 steer tube bolts and curved clamp slot reduces weight and steer tube stress - Fits most road and mountain bars - Material: Carbon with 2014 alloy faceplate - Length: 90mm - Angle: 84/6 degree - Stack: 42mm - Faceplate width: 42mm - Steerer: 1-1/8" - 125g (110mm)
Just as cyclists maximize performance by being as light, but as powerful as possible, Zipp's SL Sprint Stem strikes the ideal balance of stiffness and lightweight to deliver responsive handling without wasting a single watt. - Unidirectional carbon - The SL Sprint comes with its own stem cap that’s designed to be aerodynamically efficient by blending into the stem body - Includes stiff aluminum faceplate and stainless steel hardware with TORX heads on all bolts for precision torque readings and ease of adjustment - Black matte carbon finish with white Zipp logos
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
Chromag's direct mount Director stem sets the standard for exquisite machining detail. Light weight and solid, with a wide clamping stance, the three piece design weighs in at a slim 150 grams. - Boxxer / Fox / 888 direct mount system - 3D profile machining - 50mm wide clamping stance - 47mm extension - Low rise (-5mm) - 31.8 (Oversize) bar clamp
Specialized's S-Works SL Stem is sleek and lightweight. - 3D-forged and CNC-machined, 7075 aluminum road stem . - Includes expander plug for carbon steerer tubes and titanium hardware.
$120.00 - $125.00
Specialized's S-Works SL Stem is a lightweight stem that comes in six sizes to dial in the perfect fit on your road or mountain bike. With a 6-degree rise, it's 3D forged and CNC'd from 7075 aluminum for excellent lightness and strength. The S-Works SL Stem also boasts titanium hardware, and an expander plug for carbon steerer tubes.
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.
$109.95 - $109.99
At just 103 grams, Ritchey's C-260 is among the lightest stems in the world. This revolutionary design starts with a handlebar clamp that wraps a full 260 degrees around the bar to distribute clamping stress evenly through the handlebar, faceplate, hardware and stem body. The steerer tube clamp uses three bolts and a curved slot to reduce clamp stress on the steer tube. So you can run carbon bars and a carbon steerer no problem. Weight and stiffness were prime considerations; the C-260 is 3D forged from 7050 aluminum and machined, even the steel M4 bolts shave a few grams with no sacrifice in strength or rigidity.
Ritchey's WCS 4Axis 44 Stem is the perfect touch of class for your speed machine. It's made of forged 2014 aluminum for super light weight with excellent stiffness for optimum handling. Plus, it features Ritchey's Bias Clamp and large 44mm 4-bolt faceplate, which make it super strong and secure. Its stout squared-body profile looks great, too.
Thanks to an ingenious system of shims you slip over your fork, Specialized's S-Works CLP Multi Stem is adjustable in 2-degree increments from +/- 8 degrees to +/- 16 degrees for a perfect fit on your road or mountain bike and optimum ergonomics. Forged and CNC'd from 7050 aluminum for excellent lightness and strength, the S-Works CLP Multi Stem also boasts titanium bolts, a carbon top cap and a 4-bolt carbon/aluminum faceplate that's compatible with carbon and aluminum handlebars. - 4° is adjustable from 4° to 12° - 12° is adjustable from 8° to 16°
The RaceFace Atlas is designed to bridge the needs of AM and FR/DH riders: light enough for AM, tough enough for FR and DH, providing the ultimate in versatility. - Four bolt bar clamp holds bar securely in position - Interlocking U-Shaped Handlebar Clamp Geometry - Faceplate eliminates stress risers which cause your bar to bend or break - Opposing bolts on steer tube clamp provides extreme clamping power while reducing stress on the steer tube - Stack Height: 40mm
Joining our Carbon Handlebar is the OneUp Stem. Designed for everything from trail riding to Enduro racing. The OneUp Stem can be used with a regular star nut and top cap like every other stem. It’s also compatible with existing threaded EDC top caps, for people who’ve already threaded their steerer tube. SPECS - Length: 35mm (155g) 50mm (173g) / 35mm Dia. / 0° Rise - Colour: Black. - Stack Height: 39mm - Bar Clamp Width: 55mm - Material: 6061-T6 Aluminum
Ritchey's Pro 4Axis 44 Stem is the perfect touch of class for your speed machine. It's made of forged 6061 aluminum for super light weight with excellent stiffness for optimum handling. Plus, it features Ritchey's Bias Clamp and large 44mm 4-bolt faceplate, which make it super strong and secure. It's stout squared body profile looks great, too.
$55.00 - $56.00
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.
Specialized's Comp Multi Stem is forged and machined from 6061 aluminum for stiff, responsive handling. The 6-degree rise puts your bars in a position for improved control and the 31.8mm handlebar clamp is compatible with composite and aluminum handlebars.
This Mountain Stem from Specialized is CNC-machined, sleek and lightweight. - 3D forged and CNC-machined 6061 aluminume - 6-degree rise - Oversized 31.8mm handlebar interface - Compatible with composite handlebars
$44.99 - $49.99
Profile's Aris OS stem is a no-nonsense stem made from 6061-aluminum that's been shot peened and anodized for strength and durability. The 4-bolt faceplate is stiff, ultra tough and makes handlebar changes a breeze. And, the opposing-bolt steerer clamp is safe and secure.
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
Ritchey's Adjustable Road Stem is a super-versatile stem ready for any riding style. The angle can be adjusted from plus-45 degrees to negative-45 degrees and anywhere in-between, allowing you to fine-tune the exact bar placement you're looking for whether you want to get down into a super-aero position or sit up in a back-friendly upright position. Plus, it's made of forged aluminum for light weight and excellent durability.
Salsa's Guide Stem is lightweight, durable, and provides excellent steering response on the road or trail. - Bead-blasted, then anodized - 3D-forged for increased strength, then CNC-machined - 4-bolt faceplate design for easy installation - Stack Height: 40
Sunlite's Adjustable Stem adjusts from 0 to +60 degrees so that you can place your handlebars wherever they are most comfortable. It boasts light and durable aluminum construction with steel bolts. It fits on 1- and 1 1/8-inch forks and accepts 25.4mm- and 31.8mm-diameter handlebars too, with included shims. Plus, its 2-bolt clamp makes changing bars easy and holds fast.
Proven time after time to be a reliable, easily adjustable system that continues to outperform the competition, the 4-Axis stem is a surefire go-to for an entry level stem that has world-class performance. - Bar Clamp Diameter: 31.8mm - Material: Alloy - Stem Angle: 30 degrees - S.H.I.S. Stem Clamp Diameter: 28.6
3-D forged AL6061-T6 alloy construction - 40mm stack height - 4 bolt front loading faceplate design
- High angle stems designed specifically for use with Monstercross or Gravel bikes equipped with off-road drop bars - Available in +25° and +40° versions and lengths from 60 to 130mm - 3D forged 6061 aluminum construction - Fork Dia: 1-1/8" - Bar Clamp: 31.8 - Color: Blk - Material: AL6061
Origin-8's Pro Fit Alloy Ergo Stem is a great upgrade for road and mountain bikes. It's 3D forged from lightweight and durable 6061-T6 aluminum. It has a 4-bolt, 2-piece face clamp that shaves grams and makes for quick and easy handlebar installation/removal. Plus, the opposing steerer clamp bolts apply more even holding force to protect the fork and keep your bars from changing position.
$35.69 - $35.99
- Available in a variety of lengths, angles, and bar bores for the perfect fit - Road or Mountain compatible - 3D forged AL6061-T6 alloy construction - 40mm stack height - 4-bolt front loading one-piece faceplate design - ISO-Mountain safety certified
$32.00 - $35.00
Dimension 25.4 Stem is a fully forged 6061-T6 aluminum stem with 4-bolt handlebar clamp. - 2-D forged AL-6061-T6 - Four-bolt handlebar clamp - 41mm height - Dimension stems are not intended for use with carbon handlebars or carbon steerer tubes - Weight: 130g-180g
$34.99 - $35.00
Dimension 31.8 Stems are fully forged 6061-T6 aluminum stems that have a 4-bolt handlebar clamp. - 31.8mm can be used with 26.0 bars with additional shim (SM5317) - Dimension stems are not intended for use with carbon handlebars or carbon steer tubes - Weight: 130g-180g
$34.99 - $35.00
For cross country and all-mountain riding, Dimension Trail Stems provide a broad array of sizing options, rigorously tested to ISO 4210 Mountain standards. - Constructed with AL-6061-T6 aluminum - Shot-peened finish - Dimension stems are not intended for use with carbon handlebars or carbon steerer tubes
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