GEWAGE Adjustable Bike Stem XT-A825D-130, 130 mm, 31.8 mm Clamp, -40° to +90°, 3D-Forged Aluminum, Matte Black

GEWAGE's adjustable bike stem is a 3D-forged aluminum handlebar riser that lets you change bar height and angle (−40° to +90°) for a more comfortable, controlled ride.

This adjustable stem is designed for riders who want to fine-tune cockpit position without replacing forks or handlebars. Made from 3D-forged aluminum alloy and finished in matte black, it fits 31.8 mm handlebars and a 28.6 mm steerer tube, and is offered in three center-to-center lengths (75 mm, 95 mm, 130 mm). The stem’s broached clamp and four-bolt faceplate secure the bars while the multi-angle hinge lets you raise, lower, or tilt bars to suit different terrain and riding styles.

How does the adjustable angle improve comfort and handling?

Changing the angle of your stem alters wrist, shoulder, and back posture, which can make the ride feel more comfortable and improve control. The GEWAGE stem adjusts across a wide range so you can dial in a relaxed upright position for commuting or a more aggressive lower stance for faster riding.

• Angle range: -40° to +90° for versatile fit options
• Precise click-in or bolt-tight adjustments to lock your preferred position
• Improved leverage and steering feel by lowering or raising the bars

Which bike sizes and configurations is this stem compatible with?

This stem is built to work with standard modern road and mountain setups: a 31.8 mm handlebar clamp and a 28.6 mm (1-1/8") steerer. Choose the correct centre-to-centre length (75, 95, or 130 mm) to match reach and handling preferences.

• Handlebar clamp diameter: 31.8 mm (1-1/4")
• Steerer tube compatibility: 28.6 mm (1-1/8")
• Available lengths: 75 mm, 95 mm, 130 mm (center-to-center)

How durable and secure is the 3D-forged construction?

The stem uses 3D forging and a broached clamp to deliver a strong yet lightweight connection between the bars and fork. A four-bolt faceplate and a precision-matched clamp increase friction and reduce slippage, while the matte coating resists corrosion and is easy to maintain.

• Material: high-strength 3D-forged aluminum alloy
• Retention: four-bolt faceplate minimizes bar movement
• Finish: matte black resists wear and cleans easily

Is installation straightforward for home mechanics?

Yes—installation is a simple swap in most cases. Remove your current stem or top cap, set the GEWAGE stem to the desired angle and length, then secure the steerer and tighten the four faceplate bolts to the recommended torque.

• Tooling: common hex keys for bolts; torque wrench recommended
• Procedure: mount to steerer, position handlebar, tighten faceplate bolts evenly
• Tip: check headset preload and bolt torque after first test ride

Who is this for: The GEWAGE adjustable stem suits everyday commuters, mountain bikers, road cyclists, BMX riders, and anyone wanting to experiment with cockpit geometry. Pick the length that matches your reach and use the angle range to find a more comfortable riding posture or tweak handling for specific trails, training rides, or urban routes.