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. Product 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
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)
The Madone is built as a seamlessly integrated machine designed to do one thing: go fast. Trek's Madone Integrated Bar/Stem is an important part of that integration. Available in a variety or widths and reaches so you can dial in your superbike specifically for you. - Compatible with model year 2016/17 Madone - Variable radius, compact flare (VR-CF) shape offers wrist clearance in the drops - 100% OCLV carbon fiber construction - Seamless accessory integration with Blendr - Blendr accessory bases and mounts sold separately
An aerodynamically honed stem with adjustable length and angle to optimize your position. The rider makes up 80-90% of total aero drag, so refining your position can produce some of the biggest gains of all. Further, the shape of the stem, plus the ability to eliminate headset spacers, allows for cleaner airflow at the front of the bike, producing valuable drag reduction. Created in conjunction with Team Dimension Data, the stem delivers the confident and responsive ride feel demanded by the best riders in the world. This stem is intended for negative drop only and cannot be flipped or reversed in a positive rise. - Material: Carbon - Faceplate Material: Aluminum - Hardware Material: Titanium - Stack Height: 42.5mm with length shim / 45.5mm with angle shim - Torque Spec, Face Plate Upper Bolt: 10Nm, Lower Bolt: 6Nm - Torque Spec, Steer Tube: 5.5Nm
When stiffness and weight are the top on your list, you want Ritchey's SuperLogic C-260 Carbon Stem. This revolutionary design starts with a bar clamp that wraps a full 260-degrees around the handlebar to distribute clamping stress evenly through the handlebar, faceplate, hardware and stem body. Ritchey's first full-carbon stem, the C-260 features high-modulus carbon for stellar strength-to-weight ratio that translates into a solid but forgiving ride. And, the steer 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 with no problem.
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 Trail-Rated, carbon-bodied, 31.8mm stem for mountain bikers seeking best-in-class performance, response, and vibration absorption. The M6 stem is designed to complement the look and ride feel of the ENVE M5 and M6 handlebars. - Bar Clamp Diameter (mm): 31.8 mm - Material: Carbon - S.H.I.S. Stem Clamp Diameter: 28.6 - Stem angle: 0-degree
A 35mm clamp diameter, gravity-rated, carbon-bodied mountain stem built for aggressive riding and the muscular look of today’s carbon Enduro and All-Mountain bikes. The M7 stem is designed to complement the look and ride feel of ENVE M7 handlebars. - Material: Carbon - Faceplate material: Aluminum - Hardware material: Titanium - Clamp Diameter: 35mm - Steerer Clamp Diameter: 1-1/8-inch - Torque Spec: 5.5Nm - Weight: 85g (35mm), 92g (50mm), 99g (65mm)
Zipp's SL Speed stem represents the essence of carbon componentry. It's stiff, secure and light weight with a sleek design that compliments any bike. It's a perfect addition to a mountain climber's favorite feather-light road bike, but it's tough enough to tackle gravel and cyclocross. Designed using SRAM Exogram technology, found in SRAM RED cranks, the new SL Speed Stem weighs just 123g (100mm) while exceeding our stiffness-to-weight standards. The SL Speed is available in six sizes ranging from 70 to 120mm to meet any rider's fit needs. Includes stiff aluminum faceplate and titanium hardware Torx T25 heads for precise torque readings and ease of adjustment. - Updated distinctive Zipp cosmetics - Designed using SRAM Exogram technology - New SL Speed Stem weighs just 123g (100mm) - ±6° carbon stem - Secure with four bolt faceplace using Torx T25 bolt heads - Matte Black finish - Lifetime warranty - Zipp Quickview integrated mount available separately
The SL Sprint Stem is an ideal balance of stiffness and lightweight. The stem weighs in at just 1.8g per newton meter of stiffness using SRAM's Exogram technology. Designed with feedback from top pros to meet the unrelenting demands of Grand Tour sprinters. Zipp also tapped into expertise gained from its pioneering carbon stems and exhaustively researched the marketplace to create the SL Sprint Stem. The SL Sprint comes with its own stem cap that's designed to be aerodynamically efficient by blending into the stem body. Available in six sizes, ranging from 90 to 140mm, to meet any rider's fit needs. - Updated distinctive Zipp cosmetics - Carbon Exogram construction delivers the stiffest stem on the market gram for gram. - Secure with four bolt faceplace using Torx T25 bolt heads - Matte Black finish - Lifetime warranty - Zipp Quickview integrated computer mount available separately
You really can have it all-the new WCS C220 stem rivals the performance of the revolutionary C260 stem design, but it's quicker and easier to install and remove, thanks to a press-fit handlebar clamp interface and forward-facing hardware. First proven on the Ritchey TRAIL stem, the C220 handlebar clamp design creates a more secure interface by wrapping a full 220-degrees over the handlebar. Bolt forces are aligned with the clamp so that the stem body 'embraces' the handlebar, which is less prone to damaging lightweight bars. This clamp design allows for a lighter faceplate and stem body with no sacrifice in strength or stiffness. The Carbon Matrix stem body is forged 7075 aluminum with a stiffness-enhancing carbon exoskeleton which makes this 12% stiffer than the WCS alloy C220 stem. Premium quality CRMO steel bolts are used throughout. - Material: 3D forged 7075, carbon encased body - 4 x 4mm coated CrMo steel forward-facing faceplate bolts - 2 x 4mm coated CrMo steel offset steer tube clamp bolts - 5Nm torque max on all hardware - Compatible with all 31.8mm bars - Press-fit clamp design installs and removes like a standard stem - Angle: 84/6 degree - Stack: 42mm - Steerer: 1-1/8" - Faceplate Width: 42mm - Matte UD carbon finish - 126g (110mm)
FSA's K-Force OS-99 CSI is 3-D forged and CNC machined from AL2014 before a uni-directional (UD) carbon weave skin is applied through the Carbon Structural Integration (CSI) process. To further reduce weight the OS-99 uses a 4-bolt sculpted AL2014 alloy/carbon faceplate and titanium hardware. CSI is a process that permanently bonds carbon to alloy, to create a true hybrid product, with many of the benefits of aluminum and carbon. - Stack Height: 41mm - Weight: 126g (100mm)
An adjustable stiffness suspension stem that smooths out the ride by reducing the affects of impacts and road vibrations. - Unwanted vertical movement is absorbed by twin interchangeable elastomers - Stem retains torsional rigidity - Travel is limited to 1-2 centimeters - Made with 6061-T6 Aluminum - Includes 5 swappable elastomers (2 pre-installed, 3 additional) to customize the ride feel for your bike, weight, and riding style
Chromag's BZA 35 stem is strong, light, and burly. Featuring a 35mm bar/stem interface and weighing a perfect 165 grams this stem is light yet extremely stiff for positive control. - CNC profiling - Weight: 165g (50mm length)
The Boxcar Stem from Paul Components is the perfect combination of stiffness, strength, and reasonable weight. All screws are high-strength stainless steel with the popular T25 head. Made in Chico, California with US-sourced 2024 aircraft alloy. - Stack height: 36mm - Weight: 155g (90mm)
Zipp's Service Course SL OS Stem, crafted from 7075 aluminum, features a shape that's strong and lightweight, resulting in a best-in-class 1.85 grams per newton meter of stiffness. That results in no-flex sprints and accelerations. This stem is a favorite of Zipp ambassadors and pro athletes. - Distinctive Zipp cosmetics - Wide range of sizes and angles. - Service Course SL OS stem made for 1-1/4" steerer tube bikes. Ships with shims for 1-1/8" steerer tubes - Zipp Quickview integrated computer mount available separately - Lifetime warranty
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.
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
Strong, light and elegant. Chromag's longest running stem, the Ranger, has a refined body shape that represents their own advancement in 3D modelling and CNC profiling. The Ranger is stronger and stiffer for today’s increased demands with blended body features to increase performance with a more fluid look. The Ranger evolves with the same physical fundamentals, more flow, and increased strength. Starting at 140g, the Ranger is light yet extremely stiff for positive control at the front end.
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
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
- CNC machined 2014 aluminum body and 7075 aluminum clamps - 240 degree wrap-around, twin plate clamping system - External webbing to maximize structural strength - 118-158g including stainless steel bolts
Stems need to be light, simple, and rock solid. Fizik checked all the boxes with their Cyrano R1 Stem. The Cyrano stem forms an integral part of Fizik's Spine Concept fitting technology. A four-bolt face plate provides excellent torsional stiffness, and the choice of lengths and angles ensures that your perfect fit is out there.
FSA ACR (Aerodynamic Cable Routing) Stems have a low-profile frontal area that is suitable for road and gravel riding. - Aerodynamic Cable Routing (ACR) - Low-profile frontal area - No rotation limit - Body and faceplate - 6061 T6 - Chromoly hardware - Specific frame and headset required - 31.8mm handlebar clamp diameter - 30mm fork clamp stack height - Compatible with: K-Force Light ACR Compact, SL-K ACR Compact, Energy ACR Compact, K-Wing AGX and K-Wing AGX handlebars
- High strength and ultra-low weight combined with a low 40mm stack height make for a great all around stem - Stem is horizontally divided and machined in two pieces, enabling weight to be reduced to the absolute minimum without compromising strength
Renthal's revolutionary Integra stem combines high strength with ultra-low weight. The use of two independent, C-shape handlebar clamps allows the stem body material to be reduced to a minimum, while maintaining an incredibly stiff and strong structure. The ultra-wide, 64mm handlebar clamping area increases torsional rigidity and the use of just six bolts vastly reduces overall weight. In addition, the uninterrupted clamp on the underside of the handlebar eliminates stress risers found on most other clamps, which can lead to handlebar failure.
Zipp's Service Course SL Stem, crafted from 7075 aluminum, features a shape that's strong and lightweight, resulting in a best-in-class 1.85 grams per newton meter of stiffness. That results in no-flex sprints and accelerations. This stem is a favorite of Zipp ambassadors and pro athletes. - Distinctive Zipp cosmetics - Zipp Quickview integrated computer mount available separately - Lifetime warranty
Race Face took their super popular Turbine 35mm stem and turned the volume up to R. Increased strength to handle the harshest aggressive all mountain riding combined with an update to 0-degree size for optimized fit and performance. This stem sets the new standard in weight vs strength. - CNC Aluminum - 0-degree rise for perfect fit on aggressive bike frames - Extensive CNC machining for weight reduction without impacting strength - TopLock faceplate design for easy and secure installation
At just 113g for a 100mm extension, the Energy stem represents cutting-edge aluminum construction. The shape is 3D-forged from 2014 aluminum for great strength, with the final refinements carried out by CNC machining. Titanium bolts complete the package. - Semi Integrated Cable routing (SCR) - 3D-Forged and CNC-machined from AL2014 - 4-bolt sculpted SL faceplate
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
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