How to Install Phone Mount on Dirt Bike? | Mount Fitting Steps

Installing a phone mount on a dirt bike works in two main ways — a handlebar clamp for simplicity or a fork-stem expansion mount for a cleaner setup.

A phone that flies off the handlebar mid-ride is every dirt biker’s nightmare, but a properly installed mount stays put through rough terrain. The right way to install a phone mount on a dirt bike comes down to two methods — a handlebar clamp for simplicity or a fork-stem expansion mount for a cleaner setup. Either way, the install requires picking the right spot, securing the base correctly, and testing everything before you ride. For a closer look at the top-rated options, check out our tested roundup of the best phone mounts for dirt bikes to compare what fits your bike and budget.

Which Mounting Location Works Best for a Dirt Bike?

The best spot for a phone mount keeps your phone visible without blocking the speedometer, controls, or handlebar movement. Handlebar mounts sit right in front of you and are the easiest to install — just clamp and go. Position them slightly off-center so the phone doesn’t block the instrument cluster; centered placement usually covers the speedometer on most dirt bikes. Fork-stem mounts replace the top-cap bolt and sit centered above the stem, keeping the bars completely clear. A crossbar mount works if your bike has one, and mirror or bolt-point mounts are an option on bikes that have those attachment points, though many dirt bikes don’t.

Whichever spot you choose, verify that the phone doesn’t interfere with the throttle, clutch, brake lever, or any cables at full steering lock. Also confirm the mount clears your hands during normal riding — a phone that bumps your knuckles every time you turn is dangerous and annoying.

Installing a Handlebar Clamp Phone Mount

Handlebar clamps are the quickest phone mount type to fit, taking about ten minutes. Open the clamp and wrap it around your handlebar at the spot you picked. Most mounts fit handlebars between 1 inch and 1¼ inches in diameter — check your bar size before buying, because a mount that’s too wide won’t tighten properly and one that’s too narrow won’t close around the bar at all. Position the phone cradle where you want it, usually slightly off-center, then tighten all clamp screws firmly using the included Allen key or screwdriver. Make it snug enough that the mount can’t rotate under vibration, but avoid overtightening to the point of crushing or marking the handlebar.

Insert your phone and confirm the cradle holds it securely — give it a gentle shake to test. Rotate the handlebars lock-to-lock and verify the mount clears the gas cap, controls, and your hands throughout the full range. After your first ride, re-check every fastener; dirt bike vibration loosens things faster than street riding does, and a loose mount at speed is a genuine safety issue.

Installing a Fork-Stem Mount (RAM-Style)

Fork-stem mounts produce a cleaner look by replacing the top-cap bolt with an expansion plug inside the hollow fork stem. They require a hollow stem and a few more steps than a clamp mount, but the result leaves the handlebars unobstructed. Start by removing the fork-stem cap or any obstruction on top of the stem. Fit the expansion plug into the stem to test the fit — it should slide in freely without force. Mark the plug where it meets the top of the stem, then measure and trim it so the finished plug extends about one inch above that reference point. RAM Mounts’ fork-stem installation demo shows this measurement and trimming step clearly.

Assemble the washers in the correct order — on RAM-style kits, the plastic washer’s teeth face the rubber plug, and you should use the largest washers that still fit inside the stem tube. Use a 3 mm hex key to tighten the Allen bolt, which expands the rubber plug inside the stem. Tighten until the base feels secure without using extreme force; overtightening can prevent the base from seating properly inside the stem, making the mount unstable. Set the arm and phone cradle angle before fully locking the hand-screw, then insert your phone and confirm it sits where you want it with no interference to the bars, cables, or gauges. Re-check tightness after the first ride and periodically afterward.

FAQs

Can I install a phone mount on any dirt bike?

Most dirt bikes with standard handlebars or a hollow fork stem can accept a phone mount. Check your handlebar diameter — typically 1 to 1¼ inches — and whether the fork stem is hollow before buying. Bikes with solid stems won’t work with expansion-plug mounts and need a handlebar mount instead.

Will dirt bike vibration loosen the mount or damage my phone?

Dirt bike vibration can loosen fasteners over time, which is why re-checking all bolts after the first ride and periodically afterward is essential. Quality phone mounts designed for off-road use include vibration-dampening features in the cradle to keep your phone secure and help protect the camera from vibration damage.

What tools do I need for a dirt bike phone mount installation?

Most handlebar clamp mounts install with no tools or just the included Allen key. Fork-stem mounts require a 3 mm hex wrench, which usually comes with the kit. A tape measure helps if you need to trim the expansion plug to size for a fork-stem installation, and a small screwdriver can assist with tightening clamp screws on some models.