Mounting a phone on a scooter is a fundamentally different problem from mounting one on a motorcycle. On a conventional motorcycle you have exposed handlebars with open tube space where a clamp can grip almost anything. Scooters do not work that way. Whether you ride a Vespa, a Kymco, a Honda PCX, a Yamaha NMAX, or any other traditional motor scooter, the handlebar is typically covered or integrated into the fairing. Standard handlebar clamp mounts either will not fit or have nowhere solid to grab.
The mirror stem is where the solution lives on almost every scooter. Every scooter has two of them, and the stem provides a solid, vibration-tested anchor point that positions the phone close to the rider’s natural sightline. This guide covers four complete mirror stem phone mount solutions that are in stock, well-rated, and genuinely different from each other so you can choose the one that matches how you ride.
Why Handlebar Mounts and Suction Cups Do Not Work on Scooters
Standard motorcycle handlebar mounts clamp to an exposed round tube. On most scooters that exposed tube simply does not exist. The handlebars are enclosed in the fairing or covered by plastic trim, and even where a short section of bar is visible, it is too close to controls or too narrow to clamp reliably.
Suction cup mounts are not a valid alternative either. The vibration from even a small scooter engine is enough to loosen a suction cup over time, and a falling phone mount at any speed is a genuine safety hazard. The mirror stem is the correct location, and it works across virtually every scooter brand regardless of how the handlebars are designed.
Measure Your Mirror Stem Before Buying
Mirror stem diameters vary by brand and model. The most common sizes on motor scooters are 6mm, 8mm, 10mm, and 12-16mm. Every mount below specifies which sizes it fits. Measure the diameter of your mirror stem before ordering. A mount that does not match your stem size will not install correctly.
Quick Comparison: Best Scooter Phone Mounts
| Mount | Best For | Stem Size |
|---|---|---|
| GREFAY Mirror Stem Mount | Best Overall / No Mirror Removal | 6-8mm |
| YIUJEFDA Mirror Stem Mount | Best Quick-Release Cradle | 6-8mm |
| Homeet Mirror Stem Mount | Best for 6-10mm Stems / Aluminum Build | 6-10mm |
| Quad Lock Mirror Stem Mount | Best Premium / Most Secure Lock | 10-16mm |
GREFAY Mirror Stem Mount: Best Overall
The GREFAY is the easiest complete solution to install because it clamps directly to the mirror stem without requiring you to remove the mirror at all. A single lock nut tightens around the stem, the phone cradle holds devices from 4.0 to 7.0 inches, and built-in rubber pads on each arm absorb road vibration and protect the phone from scratches. The 1-second quick-release mechanism lets you pull the phone free at a stop without fumbling, and the 360-degree rotation with 15-degree tilt adjustment lets you dial in the exact viewing angle for your riding position.
It fits stems from 6mm to 8mm in diameter, which covers many smaller scooters including a wide range of Vespa, Kymco, Honda Metropolitan, and SYM models. If your scooter has a stem in this range and you want the fastest install with no mirror removal, this is the pick.
View GREFAY Mirror Stem Mount on Amazon
YIUJEFDA Mirror Stem Mount: Best Quick-Release Cradle
The YIUJEFDA takes a different approach from the GREFAY. Instead of a clamp-to-stem design, it threads through the mirror stem base hole. You remove the mirror briefly, slide the stem through the mount’s hole, and reinstall the mirror as a locking stop. The result is a more secure base attachment that does not rely on friction to stay on the stem.
The cradle uses a 1-second auto-lock mechanism. Place the phone in and the arms grip it automatically. Press the rear button and the phone releases instantly. Built-in silicone rubber pads and EVA foam protect the phone from scratches and dampen vibration. It fits phones from 4.5 to 6.8 inches including current iPhone and Android models, and the metal base plate gives it more rigidity than an all-plastic design. Stem size is 6-8mm, the same range as the GREFAY.
The key difference between the GREFAY and the YIUJEFDA is the installation method and the cradle mechanism. The GREFAY clamps faster without mirror removal. The YIUJEFDA threads through the base for a more anchored hold and uses an auto-lock cradle rather than a manual squeeze grip.
View YIUJEFDA Mirror Stem Mount on Amazon
Homeet Mirror Stem Mount: Best for 6-10mm Stems
The Homeet is the pick for scooters with stems in the 6-10mm range where you want a full aluminum alloy build rather than mixed plastic construction. It comes with 6mm and 8mm metal ring gaskets so one mount covers three stem sizes cleanly. Installation threads through the mirror base hole the same way as the YIUJEFDA, with the mirror reinstalled as a stop.
The four-claw cradle grips phones up to 7 inches from all four corners, which distributes the hold more evenly than a two-arm side-clamp design and reduces the chance of the phone working loose on rough pavement. The stainless steel screw hardware resists rust, and the 6063-T6 aluminum alloy frame is significantly more durable than nylon or ABS plastic alternatives. If you ride in rain or leave the scooter outdoors regularly, the corrosion resistance of this build is a genuine practical advantage over plastic mounts.
View Homeet Mirror Stem Mount on Amazon
Quad Lock Mirror Stem Mount: Best Premium Option
The Quad Lock mirror stem mount is in a different category from the three options above. Where the GREFAY, YIUJEFDA, and Homeet all use spring-loaded cradles or clamp arms to hold the phone, the Quad Lock uses a patented dual-stage mechanical twist-lock. Your phone physically locks into the mount with a deliberate twist and cannot come loose from vibration, bumps, or braking. To remove it you twist back. That is the fundamental difference and it matters on longer rides or rougher roads.
It fits stems from 10mm to 16mm using three included spacers and can be installed on either the left or right side of the handlebar area. The offset angled arm provides clearance around bodywork and controls, and the gimbal pivot head allows fine viewing angle adjustments without tools. The anti-theft design on the gimbal head means it cannot be disassembled without the correct tool, which adds a layer of security if you park the scooter in public regularly.
The trade-off is cost and ecosystem commitment. The mount requires a Quad Lock compatible case or universal adapter purchased separately. If you are already in the Quad Lock ecosystem from a car or bicycle setup, adding this to your scooter is easy. If you are starting fresh, factor in the case cost. For riders who do daily commutes, deliveries, or longer trips where phone security is non-negotiable, the premium is justified.
View Quad Lock Mirror Stem Mount on Amazon
Which Mount Is Right for Your Scooter
The stem diameter is the starting point. Measure before ordering.
If your stem is 6-8mm and you want the fastest install without touching the mirror, the GREFAY is the pick. If your stem is 6-8mm and you prefer a more anchored thread-through installation with an auto-lock cradle, go with the YIUJEFDA. If your stem is anywhere from 6-10mm and you want the most durable all-metal build, the Homeet covers that full range with included gaskets. If your stem is 10-16mm and you want the most secure mechanical lock available, the Quad Lock is the choice.
Scooter Brand Compatibility Notes
Vespa (Primavera, GTS, Sprint, LX): Vespa mirror stems are typically in the 10-14mm range depending on model and year. The Quad Lock with its included spacers is the strongest fit for most Vespas. Older or smaller Vespa models may have stems closer to 8-10mm, where the Homeet with gaskets covers the gap.
Kymco (Super 8, Xciting, Like, Downtown): Most Kymco scooters use 8-10mm mirror stems. The Homeet handles the full 6-10mm range and is a reliable choice across the Kymco lineup. Larger models like the Xciting may use stems at the higher end of this range.
Honda (PCX, Forza, Metropolitan, ADV): Quad Lock explicitly lists Honda PCX, Beat, Scoopy, Wave, and Vario as confirmed compatible models. The PCX is one of the most documented scooters in this mount category. Metropolitan owners with smaller stems should check the GREFAY or YIUJEFDA ranges first.
Yamaha (NMAX, XMAX, Zuma, Vino): Quad Lock explicitly lists the Yamaha XMAX as a confirmed compatible model. NMAX stem sizing varies by year — measure before ordering. Smaller models like the Zuma and Vino typically fall in the 6-8mm range.
Frequently Asked Questions
Do I have to remove the mirror to install any of these?
The GREFAY does not require mirror removal — it clamps directly to the stem. The YIUJEFDA, Homeet, and Quad Lock all require briefly removing the mirror to thread the stem through the mount base, then reinstalling the mirror as a stop. This takes under 10 minutes on any scooter and leaves no marks.
How do I know which stem size my scooter has?
The most reliable method is to measure the mirror stem directly using a set of digital calipers or a ruler. You can also check your scooter’s service manual or search for your specific model online. When in doubt, the Homeet’s 6-10mm range with included gaskets covers the most common sizes in a single purchase.
Can I use a Quad Lock mount without buying a new phone case?
Quad Lock sells a Universal Adaptor that adheres to the back of any existing phone case using 3M adhesive. This is a less expensive entry point than buying a full Quad Lock case and works well for most riders. The full Quad Lock case provides a stronger connection but the adaptor is a solid alternative.
Will these mounts fit on both sides of the scooter?
Yes. All four mounts can be installed on either the left or right mirror stem. Most riders choose the left side to keep the right hand free for throttle and brake controls without the mount arm in the way, but the right side works equally well on many scooters depending on the stem angle and clearance from the fairing.
Are any of these mounts waterproof?
None of the four are rated as fully waterproof, but all use metal hardware and rubber or silicone contact points that handle rain and moisture without corroding or failing. The Homeet’s 6063-T6 aluminum alloy frame is particularly resistant to rust. For riding in heavy rain regularly, consider adding a waterproof phone case alongside any of these mounts.
Can I use these on a motorcycle as well?
Yes, if the motorcycle has accessible mirror stems in the right diameter range. The Quad Lock in particular is designed explicitly for both motorcycles and scooters and works equally well on either. The GREFAY, YIUJEFDA, and Homeet are also compatible with motorcycle mirror stems of the appropriate size.
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