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

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

- 3D forged and CNC machined AL2014 - 4 bolt sculpted faceplate with titanium hardware - 40mm stack height - 113g (100mm)

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

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

All Box stems are engineered and crafted using our Oversized Technology. As we follow the load paths down the handlebars we have focused our attention on the stem-to-bar interface. Since the Oversized handlebars have an increased wall thickness and tube diameter in this sector we have reciprocated with an augmented stem interface with greater surface area. We’ve done this by moving material from low stress areas. This has greatly minimized twist and contributed to responsiveness. As the stem in mated with the handlebars we have contributed to increased pedaling stiffness by providing a backstop to the “lifting” phenomenon. There is no point pushing hard on your pedals if you can’t pull up on your handlebars and deliver that power. Power can easily be lost to handlebar-to-stem deflection and the consequences can be poor power delivery and steering control. When combined with Box’s other Oversized components, you’ll experience heightened responsiveness and reduced latency. Key differences: In this particular model stem we’ve tailored the Oversized strategy to favor utility and access. The geometry has been altered to allow for easy handlebar removal while at the same time scavenging material from low stress zones. Ideal for those who don’t want to compromise on user experience to gain performance. These stems are engineered for the larger-sized racers.

The Box Two Front Top is a modern 1-1/8 inch by 22.2mm stem designed specifically for BMX racing. Box Two Top Load stem bodies are cold-forged and CNC-machined from the highest quality 6061-T6 aluminum. The lightweight front clamps are cold-forged and CNC-machined for increased stiffness and strength. -Material: 6061-T6 Aluminum -Process: Cold-Forged -Hardware: Chromoly Clamping Bolts -Finish: Anodized w/Laser-Etched Graphics Weight: -48mm: 234 g / 8.3 oz -53mm: 240 g / 8.5 oz

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

Designed specifically for 1-1/8" steerer.

You really can have it all; Ritchey's WCS C-220 stem features revolutionary stiffness and classically inspired good looks, but it’s quick and easy to install and remove thanks to a press-fit handlebar clamp interface and forward-facing hardware. The C-220 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 stem body is forged 2014 aluminum for further weight reduction. Premium quality chromoly steel bolts are used throughout. - Material: 3d forged 2014 alloy 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 31.8 bars - Press-fit clamp design installs and removes like a standard stem - Angle: 84/6 degree - Steerer Height: 42mm - Steerer diameter: 1-1/8" - Faceplate Width: 42mm - Silver Finish - 121g (110mm)

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

- Bar Clamp Diameter: 31.8mm - Material: Alloy - Stem Angle: +17 degrees, -17 degrees - S.H.I.S. Stem Clamp Diameter: 31.8mm

The new ShockStop PRO Stem blends seamlessly with the aesthetic of modern bikes, while reducing fatigue and strain. Along with the ShockStop Suspension Seatpost, this system works together to suspend the rider and smooth out rough terrain on the bike you already own, making your ride smoother, faster, and more comfortable. Benefits: - Go further—reduce fatigue from bumps and vibrations - Ride faster—energy that is normally wasted suspending your body is converted into forward motion - Take control—customize your suspension feel to float over obstacles and maintain control over rough terrain - GPS and Utility Mounts sold separately Details: - Titanium Hardware - 15% Reduction in Weight over standard ShockStop - Refined premium finish - The ShockStop Stem in available in +/-6 degree angle with 80mm, 90mm, 100mm, 110mm, and 120mm lengths - Effective suspension travel: up to 20mm - Includes 5 swappable elastomers to fine tune your riding style - Check technical specs for compatibility What's in the Box: - 1 x ShockStop PRO Stem - 5 x swappable elastomers (2 pre-installed, 3 additional in box) - All required hardware

Taking cues from the legendary Ritchey Bullmoose mountain bike bar, as well as more recent Ritchey road combo bars such as the SoloStreem and MonoCurve, the SuperLogic Butano Ridge fills the demands of adventurous riders calling for a carbon fiber version of the Butano. We’ve doubled down on the original concept of the Butano by blessing it with the SuperLogic treatment and delivering an integrated bar/stem combo that is lightweight, stealthy, and more than capable of handling the rough stuff when it turns into fast rough stuff. This magnificent monocoque carbon fiber beauty offers complete internal cable/wire/hose routing for modern gravel and road bike frames. The underside of the bar features a removable cable cover offering easy access for cable routing and doubles its duty with the ability to receive an integrated accessory mount (sold separately). The breathtaking aesthetics of the Butano Ridge are well complimented by its supreme comfort and control afforded by its shallow drop, short reach, and pleasant backsweep – as well as the ergo aero tops that deliver logical ergonomics.

Whether you're on the open roads or scenic mountain trails or anywhere else you ride, Easton's EA70 Stem enhances your cycling experience. It's made of 3D forged aluminum for amazing stiffness, low weight and strength for excellent steering control in all conditions. Plus, Easton's TopLock technology locks the stem and faceplate together, creating a highly rigid interface while minimizing loads on the bolts, making the EA70 perfectly safe for carbon bars.

- 6061 premium alloy - Designed to be light and strong - Enduro/DH focused - 31.8 & 35mm clamp

Precision 3D-Net shaped forged shaft interconnects with a precision broached clamp to create a strong, light, and secure stem offering +/-55 degrees range of adjustment. - Adjustable from +40 to -32 degrees - Stainless bar and stem clamp bolts

Your stem may seem inconsequential, but it is the point of transfer between your skilled handling and the bike itself. An impressive refinement of our popular top level Easton alloy stem, the newest generation of EA90 stems have an larger boom diameter for increased stiffness and, by utilizing our highest quality alloys, we were able to remove excess material for even more weight savings. We've also created a custom Garmin mount, known as the ICM system, for cleaner lines and improved aerodynamics (included). Our EA90 stem comes in at 120 grams (100mm). With weights like these, we surpass much of the alloy and carbon competition in the market, while giving you the durability, confidence and control you expect from Easton. - 3D Forged EA90 Alloy - Easton ICM direct-mount faceplate computer mount compatible - TopLock Design for easy bar installation - EA90 includes Easton ICM Garmin computer mount - Finish: Black Ano - Weight: 120g (100mm) - Rise: +/- 7 degrees - Clamp Diameter: 31.8mm - Steerer: 1 1/8"

- 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

The Atmos 7k stem is a lightweight performance stem designed for trail and cross-country use and is the lightest stem in the Atmos range. Featuring a rise or drop of 6° depending on your preference, all fasteners are adjustable via a T25 tool for easy, quick adjustments. The Atmos 7k also features an integrated GoPro mount. - ±6° angle - Integrated GoPro mount - T25 fasteners for 1 tool across the cockpit SPECIFICATIONS - Stem Angle/Rise: 6 degrees - Clamp diameter: 31.8mm - Steerer clamp diameter: 1-1/8 in - Hardware: Steel

- Micro Grain Refined (MGR) alloy - 5mm headset spacer included - 2D forged MGR alloy - CNC weight optimized - Shotpeen anodized - Key technologies: MGR, chamfered bar clamp - Material: 2D Forged MGR Alloy,CNC Weight Optimized - Length (mm) : 35 / 50 - Rise : 0 Degree - Diameter (mm): 31.8 - Stack height (mm): 35 - Weight (g): 150 (35mm) / 180 (50mm) - Finish: Shot peen anodized, laser logos

Enduro has unquestionably evolved ever closer to Downhill. The Enduro MK3 Stem is all you need for hitting the trails with wingsuit type accuracy. This Stem was born out of rider's demands for precision and for those moments when you have to be inch-perfect. Taking design elements from our World Cup-winning Direct Mount MK3 Stem and splicing these with our critically acclaimed Enduro MK2 Stem. We developed the Stem specifically with Pro's and Bro's alike. It was obvious we all live for the same challenge of pushing our own limits. As riders, we want a Stem that inspires confidence to change lines through the middle of a rock garden like it's no big deal or slap the inside of a turn and translate all your weight to front-wheel traction. Providing ear-to-ear grins and saying to your mates at the bottom of a trail, "Did you see that?". From the start of the design process, it became clear that we wanted extra rigidity. To yield this, we would need to make the Stem using a forging process - a new thing for us. The result of this allowed us to achieve a more intricate shape than machining alone. It involves applying a huge amount of force to redirect the grain flow of the material. As a result, this gives superior strength, fatigue and impact resistance. Another area where we made a significant improvement in rigidity was by increasing the clamping surface area on the steerer tube. We've vastly increased this to give a stout, rock-solid feel and as close to the MK3 Direct Mount Stem as we could. Furthermore, everything is held securely by stainless steel bolts to ensure there is no rust even in the grimmest weather. In addition and like every Burgtec product, it's fully CNC machined and anodized in all your favourite flavours. Tested with the world's fastest jibbers and sendiest racers, this stem has everything you need to hit all those rowdy racing lines or pull that little bit harder off that big sender. - Forged and Fully CNC machined from AL6061 – T6 Aluminium - Stainless Steel Hardware - Available lengths - 35mm, 42.5mm and 50mm - Available in both 31.8mm (Black only) and 35mm Clamp - Weight: 35mm 138g, 42.5mm 152g, 50mm 160g

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

- Forged & blasted 2014 alloy for high strength & fatigue resistance at a reasonable weight - Four bolt bar clamp holds bar securely in position - Interlocking U-Shaped Handlebar Clamp Geometry transferring more load through the stem body and not the bolts - Faceplate eliminates ‘stress risers'

RaceFace's Chester 35 Stem is a practical stem with 2 length options and that legendary bomb-proof Race Face toughness baked right in. - Forged and machined from 6061 aluminum - Interlocking 4 bolt bar clamp secures your bar and distributes loads away from bolts and into the body - Stack Height: 42mm

- 100% uni-directional carbon body provides a lightweight structure that is torsionally and laterally stiff - Over rough roads the carbon fiber laminate helps absorb vibration and reduce hand and upper body fatigue - Titanium hardware and lightweight aluminum faceplate - 107g

Easton’s lightest aluminum stem is the choice of road racers and top XC pilots alike. The advanced EA90 aluminum tubing and 3D forging process results in a perfect blend of strength and weight. Easton’s patented DST distributes clamping forces more evenly over a larger area, making it the perfect stem for today’s lightweight aluminum and carbon handlebars. - Finish: Black Ano - Weight: 130g (100mm) - Rise: Varies - Clamp diameter: 31.8mm - Steerer: 1 1/8-inch - Length: 80mm, 90mm, 100mm, 110mm, 120mm, 130mm - Materials: EA90 alloy

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

The Treymone stem features a 51mm reach and a 27mm rise. - Trey Jones and Simone Barraco signature - Heat treated cro-mo M8 6mm solid hex bolts - Cold forged & CNC machined 6061-T6 Alloy

The Box Two Front Top is a modern 1 inch by 22.2mm stem designed specifically for BMX racing. Box Two Top Load stem bodies are cold-forged and CNC-machined from the highest quality 6061-T6 aluminum. The lightweight front clamps are cold-forged and CNC-machined for increased stiffness and strength. -Material: 6061-T6 Aluminum -Process: Cold-Forged -Hardware: Chromoly Clamping Bolts -Finish: Anodized w/Laser-Etched Graphics Weight: -40mm: 138 g / 4.9 oz -45mm: 150 g / 5.3 oz