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

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

- 3D forged alloy construction - Fits 1-1/8-inch (28.6mm) steerer forks - Fits 31.8mm handlebar clamp - Heat treated hardware - Weight: 152g (100mm)

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

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;

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

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

Chromag's HiFi stem is light and extremely strong for the ultimate control and performance. The HiFi features a blended shape thanks to 3D forging. Chromag contours every surface for human contact and structural optimization. - 3D forging - 200 grams - Low stack height

The Logic stem is clean and simple featuring "Shark Tooth Clamping" knurling to ensure your bars never slip. - Stem Type: Front Load - Bar Clamp Diameter (mm): 22.2

The Index frontload stem offers a taller 16mm rise, which allows you to run your bars as high as some topload stems, without having to compromise on the clean and simple frontload look. The wider 48mm faceplate helps provides secure and safe clamping, and the sunken section on the top allows you to run your topcap flush with the stem. This is one smooth stem that might just surprise you... - Material: 6061-T6 alloy, full CNC machined - Steertube: 1 1/8“ threadless clamp-on - Weight: 330g (11.65oz)

The Logic stem is clean and simple featuring "Shark Tooth Clamping" knurling to ensure your bars never slip. - Stem Type: Top Load - Steerer Clamp Diameter: 1-1/8-inch - Bar Clamp Diameter (mm): 22.2

3T's ARX II Team stem is the perfect finishing touch. It's made of aluminum for light weight, durability, and excellent stiffness. Refined shaping of the clamping areas results in outstanding stress distribution on the bars and steerer for safety. Plus, it features 3T's secure aluminum 4-bolt faceplate. - Aluminum stem with 40mm stack height - Single M6 bolt clamps stem to fork steerer - T25 bolts on bar clamp - 120 grams for 110mm - Bar Clamp Diameter: 31.8 mm - S.H.I.S. Stem Clamp Diameter: 28.6mm - Weight: 120 grams (110mm)

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.

- 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

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—not that you’re worried about that kind of thing. Built strong, to take on the world’s toughest trails, Descendant stems keep you pointed in the right direction. - Colors: Black - Material: Al-7075 - Lengths: 40mm, 50mm, 60mm - Bolts: Steel - CNC machined for weight reduction - Four bolt handlebar clamp - Two bolt steerer clamp

- Strong yet competitively lightweight alloy single crown stem for all disciplines - Unique style, modern geometry, and rock-solid construction, without the heavy price tag - Dial your fit with micro-increment size options, tuned to fit any rider size and style - Cockpit setup index lasered onto stem helps with 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

- Lightweight aluminum construction - Adjusts from 0° to 60° - 25.4mm handlebar clamp - 475g

LOOK Design Stem - Handlebar Diameter: 31.8mm - Steerer Tube: 28.6mm - Stem Material: Carbon

- 3D forged alloy construction - Fits 1-1/8 (28.6mm) steerer forks - Fits 25.4mm handlebar clamp - M6 Black hardware - Weight: 161g (110mm)

- 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

- 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 Features: - Key Technologies: Human Factor Design, MGR Alloy, Chamfered bar clamp, Custom Top-Cap included - Material: 6-Series Alloy, 3D forged CNC optimized body, 2D forged faceplate - Rise (°): 0 - Diameter: 31.8mm - Stack Height: 34mm - Weight: ±133g (33mm) / ±138g (38mm) ±140g (43mm) ±143g (48mm) - Finish: Shotpeen anodized

Reduced weight and improved looks over traditional adjustable stems. - Provides 6 different angles by using the supplied shims and flipping the stem (+16, +12, +8, -8, -12, -16) - 172g 100mm length with one shim and top cap - Stylish bead blast black finish - 1-1/8 steerer, 31.8mm bar clamp

Introducing the Onyx stem. Using cold forging technology rather than CNC machining, this stem has an incredibly smooth and unique shape but also strength advantages over a traditional CNC machined stem. - Cold-forged deisgn for strength, asthetics and value - Weight saving internal machining - STC (Shark Tooth Clamping) for increased grip - Steerer Clamp Diameter: 1-1/8" ins - Weight (oz): 11.15 - Stem Type: Top Load

Salt Plus Manta stem. - Bar Clamp Diameter (mm): 22.2 - Steerer Clamp Diameter: 1-1/8" ins - Stem Type: Top Load

- Fully CNC machined - Featuring an oversize center bore - Extensive machining and external webbing to maximize structural strength and stiffness and minimize weight

- Highly weight optimized single crown stem for use with 35mm handlebars - Dial your fit with micro increment size options, tuned to fit any rider size and style - Cockpit setup index lasered onto stem helps with 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 - Recommended for: ASTM 5, All mountain, enduro, trail, free ride, E-Bike Specs: - Key Technologies: MGR Alloy, chamfered bar clamp, top-cap included - Material: 6-Series Alloy, 3D forged CNC optimized body - Rise (°): 0 - Diameter: 35mm - Stack height: 34mm - Weight: ±131g (35mm) / ±136g (40mm) ±139g (45mm) ±141g (50mm) - Finish: Shotpeen anodized

Lightweight and durable 2D forged-alloy stem. - Removable faceplate for easy bar installation - 4-bolt clamp for optimal handlebar support - High rise for improved riding comfort - 35 degree rise

Lightweight and durable forged alloy stem. - Removable faceplate for easy bar installation - 30 degree rise - Fits 25.4mm handlebars

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

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