ActionStem
- Shock-absorbing and vibration-reducing stem for 31.8mm handlebars.
- With 0° (60mm) to +3.5° (100mm) angle, depending on length, for an active, sporty or competitive sitting position.
- For direct mount on the steerer tube, 28.6 mm (1 1/8'')
- Comes with extra elastomers to optimize the desired shock absorption (up to 20 mm)
- Ideal for gravel, road and commuting
- Compatible with BHS-91 Stemfix and BHS-92 GoFix bracket
In stock
ActionStem bicycle stem
ActionStem bicycle stem offers enhanced comfort with its shock-absorbing and vibration-reducing design for 31.8mm handlebars. With adjustable angle ranges from 0° (60mm) to +3.5° (100mm), catering to various riding positions from active to competitive cycling postures. Perfect for gravel, road and commute rides, it includes extra elastomers to fine-tune shock absorption up to 20mm. The ActionStem ensures a smoother ride, reducing fatigue on long journeys. Available extensions from 60mm to 100mm and also compatible with BHS-91 Stemfix and BHS-92 GoFix brackets, offering versatile and comfortable cycling solutions.
Size guide
Every type of stem comes in different length sizes (mm). The stem length affects both your bicycle's handling and your riding position. The length of a stem is measured from the center point of the steerer tube to the center point of the handlebar. Shorter stems (40 - 80mm) offer quick, responsive steering, coften featured on mountain bikes. Longer stems (80 - 130mm), often used on road bikes, improve stability at higher speed. Gravel bikes typically fall in between, balancing agility and control with stem length (60 - 90mm).
The stem also influences riding position, mainly your reach. A longer stem extends your arms forward, resulting in a more aerodynamic position with your upper body folding over the bike. Conversely, a shorter stem allows for a more upright riding position with your hands closer to your body. For the best fit, we recommend a professional bike fitting or consult your bike’s geometry before selecting a stem length.
| Size | |||||
|---|---|---|---|---|---|
| 1. Length (mm) | 60 | 70 | 80 | 90 | 100 |
Specifications
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Sizes
100mm (386g), 90mm (365g), 80mm (347g), 70mm (317g), 60mm (309g)
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Stem type
Adjustable
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Certified for
E-Bike (EN 15194), Road (EN 14781 / ISO 4210)
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Compatible with
BHS-91 Stemfix, BHS-92 Gofix
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Material
6061 T6 Aluminium
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Steerer tube diameter (mm)
28.6mm (1 1/8")
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Di2 Compatible
N
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Bar center diameter (mm)
31.8
Handlebar center diameter
The handlebar center diameter refers to the size of the handlebar where it attaches to the stem or another accessory. This diameter can vary between different types of bikes. Common sizes include 31.8mm for road bikes and mountain bikes, and 25.4mm for trekking and city bikes. Check your handlebar's center diameter to ensure compatibility when purchasing a new stem.
Stem angle
The angle of a cycling stem, or 'rise,' impacts your riding position. A 0º stem is perpendicular to the steerer tube while positive angles like +6º, raise your handlebar creating a more upright fit. Flipping the stem or using a double-angled stem creates a negative angle for a more aerodynamic position. Our range includes stems with varying degrees from zero to -40º to +60º.