A bike phone mount keeps your phone in clear view for navigation, ride-tracking and music while both hands stay where they belong — on the bars. The best hold your phone rock-steady over potholes, kerbs and rough trails, because a phone that shakes loose at speed is an expensive disaster. An extensive test of bike phone mounts sorted the best, and these are the top picks, checked against current UK prices.
What to Look For
Case-based or universal. This is the key split. The most secure systems, like Quad Lock and SP Connect, use a dedicated phone case (or an adaptor) that clips or twists positively onto the mount — utterly solid, but you commit to their case. Universal mounts instead grip any phone with a clamp or ring and need no special case. Beware cheap stick-on adaptors: their adhesive often will not bond to silicone, TPU or leather cases, which rules out most covers.
Locking and security. The mechanism is what stops a costly drop. Quad Lock's quarter-turn twist-lock and the various clamp and ring designs all aim to hold firm through vibration and impacts. Look for a positive, two-stage lock you can feel engage, and test it hard before you trust it with your phone on a bumpy descent.
Fitting your bike. Most mounts clamp to standard 31.8 mm handlebars, with smaller shims for narrower bars, and you can usually choose a stem-top or an "out-front" position that sits ahead of the bars for a clearer view. Check the mount suits where you want the phone and the diameter of your bars.
Phone size and protection. Make sure the mount takes your handset — the best handle large phones up to around 6.8 inches, or roughly 85 mm wide and 14.5 mm thick. On rougher rides, remember that sustained handlebar vibration can, over time, affect a phone's camera, so a mount with some damping is worth having for off-road use.
Weather and ease of use. A good mount shrugs off rain and lets you dock and undock the phone one-handed in seconds. And as ever, set it up for a quick glance at your route — never for tapping away while you ride.
The Winner: Quad Lock Bike Kit
The Quad Lock Bike Kit (around £49.98) is the best bike phone mount for most cyclists, and a genuine favourite of the cycling community. It works on a dedicated Quad Lock phone case that clips onto a mount fixed to your stem or handlebars; to lock the phone you simply push it on and give it a quarter-turn twist, and it is utterly secure. The kit includes a universal adaptor if you would rather not buy the case, and the system is beautifully engineered and endlessly expandable to your car, motorbike and desk. For a rock-solid, do-everything mount, it leads the field. Check the price on Amazon
