One of the lightest adjustable GPS mounts ever made—with the clean, protected over-the-stem position serious riders prefer.
The F3 Cycling FormMount OTS positions your Garmin or Wahoo directly over the stem, removing the need for a bulky handlebar clamp, elastic bands or another mount extending in front of your bike.
At just 13g, its carbon composite construction adds virtually nothing to your build. The integrated insert creates a cleaner finish, while the adjustable hinge lets you set the display to your preferred viewing angle.
Why choose the FormMount OTS?
- Just 13g – exceptionally light without sacrificing adjustability
- Clean over-stem positioning – keeps your GPS close to the cockpit
- Adjustable viewing angle – set the screen position to suit your bike
- Integrated Garmin or Wahoo insert – no separate adapter stacked onto the mount
- No handlebar clamp – preserves the clean lines of your carbon cockpit
- Ideal for integrated cockpits – does not rely on handlebar shape or exposed faceplate bolts
- Better protected off-road – nothing projecting unnecessarily in front of the bars
- More usable handlebar space – ideal for bikepacking bags and cockpit accessories
13g with nothing left out
Most ultralight mounts save weight by removing adjustability. The FormMount OTS gives you both.
F3 Cycling claims a weight of just 13g, placing it among the lightest adjustable GPS mounts available. Cycling Weekly’s independent test sample weighed only 9g—an unusually good result for a mount with an adjustable hinge and integrated computer interface.
It is a small upgrade, but exactly the sort of detail that completes a properly considered lightweight build.
A cleaner solution for modern cockpits
Conventional mounts often depend on a round section of handlebar, sufficient exposed stem length or access to the stem faceplate bolts.
The FormMount OTS installs beneath the stem cap instead. That makes it an elegant solution for integrated bar and stem combinations, aero handlebars and short-stem setups where a traditional mount can be awkward or visually intrusive.
Cycling Weekly’s tester regularly changed between bikes and found the FormMount OTS became the go-to option when integrated cockpits ruled out conventional faceplate-mounted systems.
Set the screen angle properly
Your stem angle, cockpit height and riding position all affect how easily you can read your GPS computer.
The FormMount OTS uses a hinged joint that allows the display angle to be adjusted before being locked securely into position. You can place the screen where it works for your bike instead of accepting the fixed angle chosen by the mount manufacturer.
Keep your computer close and protected
Rather than extending the computer ahead of the handlebars, the FormMount OTS keeps it positioned neatly over the stem.
This compact location is particularly valuable on mountain bikes and gravel bikes, where an out-front computer is more exposed to branches, crashes and tight terrain. It also leaves the area ahead of the bars clear for a bikepacking or commuting bag.
Built for real off-road use
Cycling Weekly used the FormMount OTS for several months, including extensive off-road riding. It handled repeated abuse without giving the reviewer any concerns about its durability or ability to deliver years of use.
F3 Cycling customers consistently praise the same qualities: low weight, easy installation, secure computer placement, useful adjustability and stability over demanding terrain.
“Solid construction and lightweight, zero rattle.”
Matthew E.
“Lightweight, strong, adjustable computer angle.”
Ramon C.
“The best mounting solution.”
John F.
Specifications
| Weight | 13g claimed |
| Material | Carbon composite |
| Computer interface | Garmin or Wahoo |
| Mounting position | Over the stem |
| Display position | Angle adjustable |
| Installation point | Between the stem and stem cap |
| Hinge bolt | 2.5mm Allen key |
| Maximum torque | 2.0Nm |
Simple installation
- Remove the existing stem cap.
- Position the FormMount OTS on top of the stem.
- Reinstall the stem cap.
- Set the computer to your preferred viewing angle.
- Tighten the hinge bolt to F3 Cycling’s specified maximum torque of 2.0Nm.
Frequently Asked Questions
Is the FormMount OTS available for Garmin and Wahoo?
Yes. Separate Garmin and Wahoo interfaces are available. Simply choose the correct version for your GPS computer when ordering.
What makes the over-the-stem position better?
It creates a compact, streamlined cockpit and keeps the computer closer to the bike instead of projecting it in front of the handlebars. This position is especially popular for mountain biking, gravel riding and bikepacking.
Is it suitable for integrated cockpits?
Yes. Because the FormMount OTS installs beneath the stem cap, it does not rely on a round handlebar section or exposed stem faceplate bolts. This makes it an excellent solution for many integrated cockpit designs.
Does handlebar diameter or stem length matter?
No. The mount attaches beneath the stem cap, so its positioning is independent of handlebar diameter, handlebar shape and available stem length.
Can I adjust the viewing angle?
Yes. The hinged design lets you set the computer angle to suit your cockpit height, stem angle and preferred viewing position.
Does it remain secure over rough roads and trails?
Yes. Customer reviews praise its stable, rattle-free performance, while Cycling Weekly found it held up well through months of demanding off-road use.
Can it be used on road, gravel and mountain bikes?
Yes. Its lightweight construction, adjustable angle and compact position make it suitable across road, gravel, mountain bike and commuting setups.
Can I use it with a handlebar bag?
Yes. Mounting the computer over the stem leaves the area ahead of the handlebars clear, making the OTS an ideal choice for bikepacking and commuting setups.
How much does it weigh?
F3 Cycling’s claimed weight is just 13g.
Clean up your cockpit without weighing it down
The FormMount OTS combines exceptionally low weight, adjustable positioning and a protected over-the-stem location in one beautifully simple mount.
Choose your Garmin or Wahoo interface and order now.