Components

• 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 barclamp to reduce stress risers and increase fatigue life in handlebars
• Forged 2-piece faceplate design reduces overall weight without compromising barclamp security or stiffness
• Shotpeen-anodized surface increases strength, durability, and fatigue life

SPECS

• 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
• Length (mm): 33 / 38 / 43 / 48
• Rise (°): 0
• Diameter (mm): 31.8
• Stack Height (mm): 34
• Weight (g): ±133 (33mm) / ±138 (38mm) ±140 (43mm) ±143 (48mm)
• Finsih: Shotpeen anodized

Made to crank from dawn till dusk, the Turbine 35 stem is the boss when it comes to XC racing and hard-charging trail riding. Stiff and light, this 35-millimeter diameter sleek-looking CNC'd aerospace aluminum alloy body makes this stem an easy choice.

FEATURES

• Intended for XC, Trail, and All Mountain use
• Machined to precision with 7075 aluminum for high strength & fatigue resistance at a very lightweight
• Interlocking 4 bolt bar clamp secures your bar and distributes loads away from bolts and into the body

SPECS

• Material: Aluminum
• Color: Black
• S.H.I.S. Stem Clamp Diameter: 28.6mm
• Length: 70mm
• Bar Clamp Diameter: 35.0mm
• Weight: 135g
• Stem Angle (deg): +6 , -6

Thomson X4 Mountain Stems feature smooth edges for carbon bar compatibility and use bolts that are custom heat treated with corrosion preventative plating. Machined with 7000 series extruded bar stock.

SPECS

• Material: Alloy
• Color: Black
• S.H.I.S. Stem Clamp Diameter: 28.6mm
• Length: 80mm
• Stack Height: 41mm
• Weight: 169g
• Stem Angle (deg): 0°

Thomson X4 Mountain Stems feature smooth edges for carbon bar compatibility and use bolts that are custom heat treated with corrosion preventative plating. Machined with 7000 series extruded bar.

SPECS

• Material: Alloy
• Color: Black
• S.H.I.S. Stem Clamp Diameter: 28.6mm
• Length: 100mm
• Bar Clamp Diameter: 31.8mm
• Stack Height: 41mm
• Weight: 169g
• Stem Angle (deg): 0°

Thomson X4 Mountain Stems feature smooth edges for carbon bar compatibility and use bolts that are custom heat treated with corrosion preventative plating. Machined with 7000 series extruded bar stock.

SPECS

• Material: Alloy
• Color: Black
• S.H.I.S. Stem Clamp Diameter: 28.6mm
• Length: 90mm
• Bar Clamp Diameter: 31.8mm
• Color: Black
• Stack Height: 41mm
• Weight: 169g
• Stem Angle (deg): 0°

Taking name and shape from the A-axis in Industry Nine's five-axis machining centers, the A318 is destined for your favorite all-mountain rides. The A318 utilizes a 31.8-millimeter handlebar clamp diameter providing 180-degrees of contact on the stem body for twist-free security that will play nice with both alloy and carbon bars. Stainless steel hardware ensures everything stays in place and looks great, regardless of mud-blasting washes or rainforest climates.

SPECS

• Model: A318 - 31.8mm clamp
• Length: 30mm
• Weight: 127g
• Rise: +/-4.4mm
• Degree: 8°
• Stack: 40mm

Ready to get rowdy, the Turbine R is a high-end stem CNC machined for low weight and big-time strength. Built to stand up to the all-over mountain abuse of Enduro, this stem has a 0-degree rise.

SPECS

• Clamp Diameter (mm): 35.0
• Length (mm): 50
• Material: 7075 Aluminum
• Stack (mm): 42
• Steer Tube Diameter (in): 1-1/8
• Weight: 138g

Machined to precision with 7075 aluminum for high strength and fatigue resistance at a very lightweight. Interlocking 4 bolt bar clamp secures your bar and distributes loads away from bolts and into the body

SPECS

• Bar Clamp Diameter (mm): 35.0
• Length (mm): 60
• S.H.I.S. Stem Clamp Diameter: 28.6
• Stem Angle: +6, -6
• Material: Aluminum
• Color: Black
• Weight: 135g
• Intended for: XC, Trail, and All Mountain

Super strong machined 6061 aluminum is paired with an interlocking faceplate that transfers load through the stem body, not the bolts. With three rad anodized color choices and laser graphics, this stem adds some real bling to your shred sled. The ultimate in versatility, the high-end Atlas stem is designed to bridge the needs of AM and FR/DH rippers. Multiple length options, multiple color options, and legendary strength make this stem pure fun no matter how or where you ride it.

SPECS

• Clamp Diameter (mm): 35.0
• Stem Length (mm): 50.0
• Material: 6061 Aluminum
• Stack (mm): 40
• Steer Tube Diameter (in): 1-1/8
• Weight: 160g
• Weight Conditions: 50mm

The Shake, as in “shake and bake!”, Stem is Factor's forged alloy workhorse stem. No frills or spills here….just a solid 35mm stem designed to be stiff, strong, and looks good. So, if you are looking for a great stem for the money, look no further!

SPECS:

• 35mm length
• 35mm clamp 
• Forged Alloy
• Laser-cut logo

The Renthal Apex combines All Mountain strength, Enduro stiffness, and XC lightweight.

Unique 240° handlebar clamps allow much of the stem body material to be removed, whilst retaining the strength and stiffness demanded by modern, wide handlebars.

The Apex is fully CNC machined, featuring an oversize center bore, extensive 3-D machining, and external webbing to maximize structural strength and stiffness and minimize weight.

SPECS

• Offset: 31mm, 50mm
• Rise: +/- 6°
• Stack Height: 40mm
• Clamping Diameter: 31.8mm
• Clamp Width: 46mm
• Steerer Clamp: 28.6mm
• Weight: 106g (31mm), 127g (50mm)

Taking name and shape from the A-axis in Industry Nine's five-axis machining centers, the A35 is destined for your favorite all-mountain ride. The A35 utilizes either a 35-millimeter handlebar clamp diameter providing 180-degrees of contact on the stem body for twist-free security that will play nice with both alloy and carbon bars. Stainless steel hardware ensures everything stays in place and looks great, regardless of mud-blasting washes or rainforest climates

SPECS

• Clamp Diameter: 35mm
• Length: 32mm
• Weight: 128g
• Rise: +/- 5mm
• Degree: 9°
• Stack: 42mm

Taking name and shape from the A-axis in Industry Nine's five-axis machining centers, the A35 stem is destined for your favorite all-mountain rides. The A35 utilizes either a 35-millimeter handlebar clamp diameter providing 180-degrees of contact on the stem body for twist-free security that will play nice with both alloy and carbon bars. Stainless steel hardware ensures everything stays in place and looks great, regardless of mud-blasting washes or rainforest climates.

The Renthal Apex combines All Mountain strength, Enduro stiffness, and XC lightweight. Unique 240° handlebar clamps allow much of the stem body material to be removed, whilst retaining the strength and stiffness demanded by modern, wide handlebars. The Apex is fully CNC machined, featuring an oversize center bore, extensive 3-D machining, and external webbing to maximize structural strength and stiffness and minimize weight.

SPECS

• Offset: 33mm
• Rise: + / - 6°
• Stack Height: 40mm
• Clamping Diameter: 35mm
• Clamp Width: 46mm
• Steerer Clamp: 28.6mm
• Weight: 112g (inc. bolts)

Built for all-mountain riding, the new Aeffect Rally 35 stem is a no nonsense workhorse. With increased strength and shorter length options available for modern bike geometry, Aeffect R performs well above its price point.

FEATURES

• Forged and machined from 6061 aluminum
• 0degree rise for modern all-mountain bike geometry

SPECS

• Material: Aluminum
• Color: Black
• S.H.I.S. Stem Clamp Diameter: 28.6
• Length(s): 40mm, 50mm, 60mm
• Bar Clamp Diameter (mm): 35.0
• Defined Color: Black
• Rise: 0
• Weight: 160g
• Stem Angle (deg): 0

Take Race Face's popular Turbine 35mm stem and turn 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.

FEATURES

• CNC Aluminum
• 0degree rise for a perfect fit on aggressive bike frames
• Extensive CNC machining for weight reduction without impacting strength
• TopLock faceplate design for easy and secure installation

SPECS

• Material: Aluminum
• Color(s): Black, Blue, Green, Purple
• S.H.I.S. Stem Clamp Diameter: 28.6
• Length(s): 40mm, 50mm
• Bar Clamp Diameter (mm): 35.0
• Defined Color: Black, Blue, Green, Purple
• Rise: 0
• Weight: 138g
• Stem Angle (deg): 0

FEATURES

• Highly weight optimized single crown stem, ideal for Enduro applications with 35mm 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 barclamp to reduce stress risers and increase fatigue life in handlebars
• Forged 2-piece faceplate design reduces overall weight without compromising barclamp security or stiffness
• Shotpeen-anodized surface increases strength, durability, and fatigue life

SPECS

• Key Technologies: Human Factor Design, MGR Alloy, Chamfered Barclamp, Custom Top-Cap included, 35mm Barclamp Standard
• Material: 6-Series Alloy, 3D forged CNC optimized body, 2D forged faceplate
• Length (mm): 5 / 40 / 45 / 50
• Rise (°): 0
• Diameter (mm): 35
• Stack Height (mm): 34
• Weight (g): ±131 (35mm) / ±136 (40mm) ±139 (45mm) ±141 (50mm)
• Finish: Shotpeen anodized