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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 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
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
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
• Steel • Polished-chrome finish • 1-inch model has 22.2mm quill, 15/16-inch model has 21.1mm quill • 10-inches tall (extra tall)
- 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
FSA's Omega line is the perfect workhorse component group for the sport rider who wants race-winning technology and durability along with classic good looks. - 3D-forged and CNC-machined from AL6061/T6 - 4-bolt cold-forged face plate - Chromoly hardware - ±6° - 31.8mm handlebar clamp diameter - 35mm fork clamp stack height - 127 grams (100mm)
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 modulated the Oversized formula to emphasize pedaling stiffness. We have transferred material specifically to sectors that experience sudden stress from pulling up on the handlebars. You’ll feel a difference in your acceleration. These stems are engineered for the larger-sized racers. -Material: 6061-T6 Aluminum -Process: Cold-Forged -Hardware: Chromoly Clamping Bolts -Finish: Anodized w/Laser-Etched Graphics Weight: -48mm: 280 g / 9.8 oz -53mm: 290 g / 10.2 oz
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: This particular model stem pushes our Oversized Technology to the extreme as it maximizes the shift of material from low stress zones to the Oversized interface. These stems are engineered for the smaller-sized racers. -Lightweight 3D Hollow Design -Front-Load Clamp Design to Fight Pull-Up Forces -Large Bar Bore -Large Hollow Clamping Bolts -Superior Strength
The RaceFace Aeffect 35 stem brings the advantages of a 35mm bar to the XC/Trail crowd at a mid-level pricepoint while maintaining a refined Race Face look. - Forged and machined from 6061 aluminum - Interlocking 4 bolt bar clamp secures your bar and distributes loads away from bolts - Stack Height: 39mm - Weight: 155g (60mm)
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
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
- Forged AL6061-T6 alloy construction - Matte finish with laser-etched graphics - ISO-Mountain safety certified - 4-bolt handlebar clamp - Quill length: 180mm
Origin-8's X-Tra Lift Stem Riser is an adapter that lets you raise your handlebars and stem. It fits over and securely bolts to 1 1/8-inch forks to extend them. This gives you more height to raise your stem/bars. You use the included spacers to dial in the best fit. The Stem Riser is made from forged 6061 aluminum and is anodized for durability.
- Solution for riders wanting to raise their drop bars for added comfort - 225mm tall quill (210mm above the min insertion line) - Forged aluminum - 22.2mm quill - 25.4mm clamp - 386-415g
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
Inspired by the sleek and deadly lines of a Copperhead snake, the sweeping center channels of the Copperhead stem wrap around the entire stem to minimize material while delivering the a stong steerer mounted stem. DEITY's focus on durability and dedication to the symmetry between strength and weight is showcased in the balance of style and function that is the Copperhead stem. - Designed for all applications from All MTN to Slopestyle and anything in between - CNC Machined from a solid block of 6061 T6 Aluminum - Exceptionally detailed chamfered edges and channels throughout - 55mm wide clamping platform
Whisky's No.7 Mountain stems offer a stout connection for modern mountain bars. They match the simple, clean aesthetic of other Whisky cockpit components. - Bead-blasted, then anodized, finish - 3D-forged for increased strength, then CNC-machined - 4-bolt faceplate design for easy installation
3D-forged and CNC-machined AL6061/T6 mountain bike stem. - 4-bolt cold-forged alloy faceplate - Chromoly hardware - 40mm fork clamp stack height
Velo Orange Cigne Stem gets its name from the French word for swan. The shape is inspired by the old gooseneck LD stems by Ibis and Cunningham, but with a few accommodations for modern bike needs. 1 1/8" threadless and 31.8mm handlebar clamp with a removable faceplate. With 145mm of vertical height from the base of the stem to the center of the clamp, it's pretty useful for getting your handlebars up high without using a ton of spacers. - Star-nut should be approximately 1cm from the top of the steerer tube - Minimum 55mm of steer tube required - Not compatible with carbon steerer tubes - No top cap needed. Stem includes tension bolt
You really can have it all-the 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. The WCS C22 25D Stem offers 25-degrees of positive or negative rise. 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 stem body is forged 2014 aluminum for further weight reduction. Premium quality CrMo steel bolts are used throughout. - Material: 3D forged and internally machined 2014 alloy body - CrMo faceplate bolts and patented 220 degree bar clamp design reduces weight, increases stiffness and distributes stress more evenly - Stainless steel steer tube bolts and curved clamp slot reduces weight and steer tube stress - 5Nm torque max on all hardware - Fits most road and mountain bars - Installs without the removal of levers - Angle: 25-degree - Stack: 45mm - Steerer: 1-1/8" - Faceplate Width: 40mm - Blatte finish - 120g (90mm)
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.
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
The WCS C220 stem is easy to install and remove thanks to a press-fit handlebar clamp interface and forward-facing hardware. - The 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 - Clamp design allows for a lighter faceplate and stem body with no sacrifice in strength or stiffness
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 31.8 bars - Press-fit clamp design installs and removes like a standard stem - Angle: 84/6 degree - Steerer Height: 42mm - Steerer: 1-1/8” - Faceplate Width: 42mm - Matte UD carbon finish - 126g (110mm)
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)
Designed specifically for 1-1/8" steerer.
The new Ritchey WCS Toyon stem takes its lead from the original, award-winning Ritchey C220 stem and gives it a more modern shape and increased stiffness for improved handling and greater responsiveness. The Toyon retains the clamping surface area of the C220, which creates a more secure interface by wrapping a full 220° over the handlebar. Its bolt forces are aligned with the clamp so that the body "embraces" the handlebar—a design which is less prone to damaging lightweight bars and allows for a lighter faceplate and stem body with no sacrifice in strength or stiffness. Built from life and all that inspires it, the Toyon builds upon the proven and celebrated C220 design with a fresh, squared aesthetic that adds to the overall harmony of modern frame designs—matching its good looks with enhanced confidence and a more lively feel for wherever your rides take you. - Matching top cap included - 6° of positive or negative rise - 1-1/8" steerer diameter - Stem body wraps 220° around bar clamping area, holding it in place for easy installation - Material: 2014 alloy - Bolts: stainless steel black - Matching top cap included - Angle: 84°/6° - Bar clamp diameter: 31.8mm - Bar clamp width: 44mm - Steerer diameter: 1-1/8" (28.6mm) - Steerer height: 42mm - Weight: 140g (100mm)
The new Ritchey Classic Toyon stem takes its lead from the original, award-winning Ritchey C220 and gives it a more modern shape, a timeless aesthetic and increased stiffness for improved handling and greater responsiveness. Available exclusively in a 60mm length, the Classic Toyon is the perfect match for the Classic Kyote with its extended backward sweep. The Classic Toyon retains the clamping surface area of the C220, which creates a more secure interface by wrapping a full 220° over the handlebar. Its bolt forces are aligned with the clamp so that the stem body 'embraces' the handlebar—a design which is less prone to damaging lightweight bars and allows for a lighter faceplate and stem body with no sacrifice in strength or stiffness. Built from life and all that inspires it, the Classic Toyon builds upon the proven and celebrated C220 design with a fresh, squared aesthetic that adds to the overall harmony of modern frame designs—matching its good looks with enhanced confidence and a more lively feel for wherever your rides take you. - Perfect match for the Classic Kyote handlebar - 6-degrees of positive or negative rise - 1-1/8" steerer diameter - Material: 2014 alloy - Bolts: stainless steel - Lengths: 60mm - Angle: 84°/6° - Bar clamp diameter: 31.8mm - Bar clamp width: 44mm - Steerer diameter: 1-1/8" (28.6mm) - Steerer height: 42mm - Weight: 117g (100mm)
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