Rider-matched picks
Phone Mounts for e-bike riders
Size-matched phone mounts picks for e-bike riders, with fit and feature priorities curated for how e-bike riders actually ride.
Phone Mounts picks for e-bike riders
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Quad Lock
Quad Lock Stem/Handlebar Bike Mount
Mounts on either stem or round handlebar; quick-release rubber strap fits 25-40mm tubes. Mount only - phone case or Universal Adaptor required.
Quad Lock
Quad Lock Handlebar/Stem Mount Bike Kit with Universal MAG Adapter
Mounts on stem or round handlebar 25-40mm. MAG Universal Adapter sticks to any flat-backed phone or compatible case - no Quad Lock case required.
Quad Lock
Quad Lock Out Front Mount V3
Out-front position keeps the phone in your line of sight without obstructing the cockpit. Includes shims for 22, 25.4, 31.8, and 35mm bar diameters. Mount only - case or adapter required.
Quad Lock
Quad Lock Out Front Mount V3 with MAG Universal Adapter
Complete out-front kit - works with any phone (no Quad Lock case required) thanks to the MAG Universal Adapter that sticks to the phone back.
Quad Lock
Quad Lock Out Front Mount PRO V2
PRO version uses CNC-machined aluminium for a lower-profile, more aero look favoured by road and gravel racers. Same dual-stage lock as standard Out Front. Mount only.
Quad Lock
Quad Lock Stem Cap Mount Adjustable Kit with MAG Universal Adapter
Replaces your existing 1-1/8" stem top cap, putting the phone directly above the steerer for a clean cockpit. Adjustable hinge tilts the phone toward the rider. Includes MAG Universal Adapter - works with any phone.
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What matters for e-bike riders
E-bikes weigh 20-30 kg compared to 8-12 kg for acoustic bikes, which fundamentally changes how sizing affects handling. The extra weight actually improves stability at speed but makes low-speed maneuvering and stopping more critical - ensure you can confidently put both feet flat on the ground when stopping, especially if you're new to cycling. Step-through frames are strongly recommended for riders with any flexibility limitations, as swinging a leg over a heavy e-bike is significantly harder than a standard bicycle. Mid-drive motors (Bosch, Shimano, Brose) center weight low near the bottom bracket, providing better balance than hub motors which place weight in the wheel. Battery placement (downtube integrated vs rear rack) also affects weight distribution - integrated downtube batteries provide the most natural handling. When sizing, use the same frame size you'd ride on an acoustic bike of the same type - e-road bikes size like road bikes, e-MTBs size like mountain bikes. The motor assist actually makes sizing slightly more forgiving, as you're less reliant on optimal pedaling efficiency.
Phone Mounts sizing guidance
Phone mounts size to your handlebar (and sometimes stem) diameter, not your phone. Drop-bar road bikes use a 31.8 mm bar clamp at the stem and 23.8-24 mm at the hood transition; flat MTB and gravel bars are 31.8 mm or 35 mm at the stem; old or kids' bars are 25.4 mm. Most universal mounts ship with shims to cover 22.2 / 25.4 / 31.8 mm; 35 mm bars usually need a brand-specific clamp. Out-front mounts (Garmin-style) bolt to a 31.8 mm bar and put the phone forward of the stem at eye level - best for navigation. Stem-cap mounts (Peak Design Out Front, Quad Lock Stem Mount) replace the top headset cap with an M6 bolt and sit centered on the stem; they fit any 1 1/8" stem but reduce stem-bolt access. Phone size: most quality mounts handle iPhone Pro Max and Galaxy Ultra (up to ~78 mm wide, 168 mm tall) with or without a case; verify the case profile (MagSafe, OtterBox Defender) is supported.
Expert tips
- Size your e-bike the same as you would the acoustic version - a Trek Rail sizes like a Trek Fuel EX
- Step-through frames aren't just for seniors - they're practical for anyone who stops frequently in traffic
- Mid-drive motors (Bosch, Shimano, Specialized) provide the most natural pedal feel and better hill climbing
- Test ride with the battery fully charged AND nearly empty - the bike handles differently with 3-4 kg less weight