The Framesandgear Aero Computer Mount for Universal 40 mm. Stem Black lets you mount Garmin, Wahoo, Hammerhead, and Bryton cycling computers directly on the Universal 39 mm stem.

The CNC-machined aluminum computer mount allows for adding various add-on mounts, such as GoPro, Insta360, and quick-lock mounts. This computer mount supports Garmin, Wahoo, Hammerhead, and Bryton computers.

This mount fits all stems with a 40 mm distance from center to center of the (lower or upper) bolt holes on the front plate of the stem.

What's in the package:

• 1 x Framesandgear Aero Computer Mount in the selected length.
• 1 x (Selected) Computer mount insert for Garmin, Wahoo, Hammerhead, or Bryton.
• Hardware/ Fitting bolts.

When to fit this product:

• Use it when you need a computer mount tailored for the Universal 40 mm. Stem, or if you simply are seeking an upgrade for a clean mount that matches the cockpit.
• However, only use it when your bar/stem and interface match the confirmed compatibility list in the product description.

Key specs

• Compatibility: Universal 39 mm. Stem
• Computer fit: Garmin, Wahoo, Hammerhead, and Bryton
• GoPro: Without GoPro (can be added)
• Mount angle: Adjustable (25° for Small sizes, 6° for Medium and Large sizes)
• Material: 7075 CNC-machined aluminum
• Weight: 31-35 g.

Important compatibility note

• With a cycling computer installed, Framesandgear computer mounts can support one additional device underneath: either a light or an Insta360/action camera—not both.
• When using a cycling computer, select only one add-on device for the underside of the mount.

Why 7075 CNC-machined aluminum

7075 CNC-machined aluminum provides a stiff and strong base for an out-front computer mount, ensuring the computer stays stable on rough roads and during hard efforts. Further, the machined shape helps match the cockpit interface precisely. As a result, the mount supports a strong, cleaner setup and consistent computer position without adding unneeded bulk.

Mount installation on the handlebar/stem

• Fit the mount according to the original handlebar or stem manufacturer's instructions.
• Use the torque value specified by the handlebar/stem manufacturer for this mounting point.
• Do not overtighten. Many bar and stem systems, especially carbon interfaces, have low torque limits, such as 3 Nm.
• Ensure the mount is seated evenly before final tightening.
• Check that the mount is secure before riding.

Adjustment and setting of the side angle adjust bolts

• Hand-thread both side bolts (2 × M4 × 10 mm, included) to keep the mount loosely in place before tightening.
• Cross-tighten the side bolts — tighten each bolt gradually and alternately (left → right → left → right) to ensure an even, balanced fit across the interface. Do not fully tighten one side before the other.
• Torque to 4 Nm on each bolt. At 4 nm, the arm locks firmly in position and will remain stable even when an add-on mount (GoPro, Insta360, or quick-lock) is attached.