Assenmachers Bicycle Company

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Stems

Promax Banger Stem
$49.99 - $69.99
Promax Banger stems have a front-load design and can be used with either side up, providing a 5-millimeter drop or rise. Available with 48-millimeter and 53-millimeter extensions, they are cold forged from the highest quality 6061-T6 aluminum then CNC machined to enhance the shape and further reduce weight. - Stack height: 30.5mm
Promax DA-1 Stem
$69.99
Promax's DA-1 XC mountain bike stem is 3D cold-forged, then CNC-machined from 6061-T6 aluminum to create a lightweight and strong stem. The two-piece faceplate features their bar-gripping DWT (Dynalock Web Technology), which increases the bar/stem interface.
Promax S-29 Stem
$69.99
Developed for longer-travel trail bikes, Promax's S-29 stem offers the perfect configuration to set you up for maximum comfort and control. Featuring an oversize extension tube and faceplate with massive clamping area, it’s sure to keep your bars stylishly in place through the most demanding terrain. These stems are cold-forged and CNC-machined from 6061-T6 aluminum for strength, low weight, and durability.
Promax S-35 Stem
$69.99
Promax takes handlebar control up a notch with their S-35 Stem. Its oversize 35mm handlebar clamp cranks up the cockpit stiffness without adding weight or sacrificing any strength. - 3D cold-forged and CNC-machined from 6061-T6 aluminum alloy
Origin8 3D MonsterCross / Gravel Stem
$34.99
- 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
Sunlite Threadless Alloy Road Stem
$27.99
- 3D forged 6061 alloy road stems in 6 or 17 degree angles - Lightweight 4 bolt faceplate - Material: AL6061-T6 - Finish: Sandblasted
Ritchey Comp 4-Axis 30D Stem
$39.95
Pro caliber features at a real-world racer price. This 3D net forged 6061 aluminum stem offers +/- 30 degrees of stem angle for riders wanting a more comfortable fit. The angled steer tube clamp slot reduces stress on carbon steer tubes. - Material: 3D net forged 6061 - Angle: +/-30 degree - Steerer Height: 45mm - Steerer: 1-1/8” - Faceplate Width: 40mm - BB black finish - 170g (110mm)
FSA SL-K Stem
$81.99
The updated SL-K stem is lighter than ever – just 141g for the 100mm length. Using high-strength 2014-aluminium and sophisticated forging and machining, FSA finely controls the amount of material used to cut weight. - 3D forged and CNC machined AL-2014 - Carbon fiber faceplate - Chromoly hardware
WeThePeople Index Stem
$60.99
WeThePeople's new frontload stem, the Index 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.
Bontrager RXL 7 Degree Factory Overstock Stem
$40.00 $89.99 56% Off
A traditional, lightweight, alloy stem with increased compliance for road and MTB use. Light as carbon. Strong as hell. The super compliant 7050-T6 aluminum alloy Race X Lite bike stem is light enough for the road but strong enough for the mountain. It features a flip-flop 7 degree rise and 31.8 clamp that help it excel in lightweight versatility for a variety of hand positions. - 7050-T6, 3D, forged alloy construction - 4-bolt face plate helps distribute clamping load on ultra-lightweight handlebars - Angled steerer tube clamp spreads clamping pressure on steerer and is carbon friendly - Countersunk, corrosion-resistant steel bolts do not require washers - Dual clamp bolts are strategically positioned to evenly distributing clamping forces - This stem requires at least 5mm of spacers above and below the steerer tube clamp area - Go green and save green – Zero packaging means zero waste and zero extra cost
3T Apto Pro
$70.00
For 56 years, 3T products have offered a combination of Italian elegance and performance. The Apto once again combines both with a beautiful shape and a lightweight, stiff and strong structure. The reversed bolts clean up the faceplate, while their wide spacing increases the connection to the handlebars. Its double steerer bolts securely hold the stem in place.
3T Apto Team Stealth
$110.00
For 56 years, 3T products have offered a combination of Italian elegance and performance. The Apto once again combines both with a beautiful shape and a lightweight, stiff and strong structure. The reversed bolts clean up the faceplate, while their wide spacing increases the connection to the handlebars. Its double steerer bolts (Titanium in case of the TEAM version) securely hold the stem in place.
Specialized Turbo Vado Stem w/Display & Light Mount
$65.00
Optimize your comfort and riding position on the Turbo Vado with this sleek stem. It's made from lightweight and durable 6061 aluminum, and it features both an integrated display and light mount. This way, you're able to dial in your fit without losing any of the readily accessible functionality or illumination that you love from the Vado.
Specialized S-Works Venge Stem
$150.00
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
Spank Spoon 2 Stem
$39.90
- Unique style, modern geometry, and rock solid construction, without the heavy price tag - Suitable for all disciplines: Freeride, All Mountain, Enduro - Chamfered bar-clamps to reduce stress risers and increase fatigue life in handlebars - Ideal for shorter riders to improve the setup of their cockpit. - Length (mm): 40 - Rise: 0° - Diameter (mm): 31.8 - Stack height (mm): 35 - Weight (g): ±170 - Finish: Shot peen anodized, laser logos
ENVE Road Stem
$265.00
The ENVE Road Stem is a staple component in our line and often under-appreciated for the benefits it provides out on the road. The stem plays a key role by connecting your bike to your handlebars and it must manage all the forces that you put into your bike. On the road, the 100% uni-directional carbon body provides a lightweight structure that is torsionally and laterally stiff to ensure that inputs into steering and accelerating are positive and confidence-inspiring. Over rough roads, the carbon fiber laminate helps absorb vibration and reduce hand and upper body fatigue. To further reduce weight, all stem hardware is constructed from lightweight titanium. The faceplate is cold-forged aluminum that allows for a highly reliable and strong grip on the handlebar for responsive steering input with zero slipping. - Material: Carbon Fiber - Faceplate Material: Aluminum - Hardware Material: Titanium - Stack Height: 41mm - Torque Spec, Face Plate: 5.5Nm - Torque Spec, Steer Tube: 5.5Nm - Weight: 90g (80mm), 107g (90mm), 115g (100mm), 121g (110mm), 126g (120mm), 136g (130mm), 145g (140mm)
ENVE M6 Mountain Stem 31.8mm
$280.00
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. - Material: Carbon - Faceplate material: Aluminum - Hardware material: Titanium - Clamp Diameter: 31.8mm - Steerer Clamp Diameter: 1-1/8-inch - Torque Spec: 5.5Nm - Weight: 85g (40mm), 92g (55mm), 99g (70mm), 104g (85mm)
Whisky Parts Co. No. 7 Mountain Stem
$40.00 - $45.00
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
Pro FRS Stem
$39.99
The Pro FRS stem is constructed of 3D forged AL6061-T6 aluminum for ultimate strength, providing supreme confidence and control on the slopes.
Pro Koryak Stem Di2
$79.99
The Koryak Di2 stem is ideal for AM, Trail, and XC. It's 3D forged with AL-7075 aluminum for a strong and lightweight stem, and has a headlock system for a secure front clamp fixation. The Koryak stem is ready to hit the trail.
Pro LT Stem
$40.00
the Pro LT stem is constructed of strong and lightweight anodized 6061 alloy, and features a headlock system for a secure front clamp fixation.
Profile Design Aris OS Road Stem (+/-25-degree rise)
$47.49
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.
Profile Design H2O Quill Stem
$44.99
A little H2O is a crucial part of every ride! This sweet stem is made of 6061-T6 aluminum for a light, strong ride. Cold 3D forging adds strength and a nice finish.
Odyssey RAFT Stem
$64.99 - $74.99
Using Odyssey's popular TL48 stem as a springboard, Broc Raiford's signature RAFT stem is a classic top load design. FEATURES - Six bolt clamping configuration - Headset pre-load bolt recess (32mm diameter) - 6061-T6 aluminum, CNC machined
TruVativ Descendant Stem
$65.00
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
Origin8 Flow MTB/Road Stem
$34.99
3-D forged AL6061-T6 alloy construction - 40mm stack height - 4 bolt front loading faceplate design
Origin8 Flux MTB/Road Stem
$64.99
Full CNC machined AL6061-T6 alloy construction - 40mm stack height - 4 bolt front loading faceplate design - EN-Mountain safety certification
Zipp SL Speed Stem
$265.00
Zipp’s SL Speed stem represents the essence of carbon componentry. It’s stiff, secure, and lightweight with a sleek design that complements 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. - Includes stiff aluminum faceplate and titanium hardware - Torx T25 heads for precise torque readings and ease of adjustment - Stack height: 41mm
Syntace F44 Stem
$109.00
Syntace's F44 is a direct mount stem intended for rock-solid control on dual-crown forks. Sabertooth bar clamp design ensures no bolts or clamping surfaces protrude, and wide, cantilever-style mount arms provide a low profile. - Weight: 91g
Bontrager Rhythm Pro Direct Mount Stem
$49.99 $99.99 50% Off
Downhillers rejoice! Bontrager has a stem for you. Maintain confident control on screaming runs down the gnarliest lines with the durable and strong Rhythm Pro Direct Mount Stem. Made from strong and lightweight 6061 aluminum, this stem features a hefty 4-bolt attachment to the fork, and a 4-bolt, dual-band clamp for a confident interface with the bars. Key features: - Constructed of 7050 alloy - 4-bolt direct mount for dual crown forks - 4-bolt dual band clamp securely holds handlebar - Uses M6 corrosion-resistant steel bolts with 8Nm torque spec - Safe for use with alloy or carbon handlebars