Riders who already use a Quad Lock case and want a clean, stem-top phone position that can be angled properly.
The Quad Lock Stem Cap Mount Adjustable replaces the need for a strap or bar clamp. It bolts in between your stem and the stem cap on a standard 1 1/8 inch steerer, leaving your bars free for lights, a computer or a bag.
It is machined from aircraft-grade aluminium and finished in black with black hardware. The screw-tightened hinge lets you tilt the phone to suit your stem angle, up to +55° on upright stems, and the dual-sided head means the lever can sit on whichever side works best.
Twist your phone on, it clicks into Quad Lock's dual-stage lock, and you are ready to ride with Strava, Ride with GPS or your maps in view. Twist it off just as quickly when you stop for a photo or a call.
Stem cap fit
Mounts under the stem cap, keeping the bars clear.
Adjustable angle
Hinge suits upright stems up to +55°.
Aluminium build
Forged and CNC-machined, anodised black.
Dual-stage lock
Twist on, click, and the phone stays put.
Mount
In the box
Compatibility
Dual-stage lock
Quad Lock's patented twist-and-lock interface, with a lever that stops the phone rotating out on rough roads.
Adjustable hinge
A screw-tightened hinge lets you set the phone angle to suit your stem, then holds it firmly in place.
Great for
Maybe not for
Fits 28.6 mm (1 1/8 inch) steerers between the stem and stem cap. Requires a Quad Lock case or universal adaptor on your phone.
Setting it up
Remove the top cap bolt, fit the mount under the cap, then re-set your headset preload before tightening the stem bolts. Set the hinge angle with the hex key so the screen faces you in your normal riding position. If you are not confident with headset preload, drop in and we will fit it for you.
Twist, lock and ride.
Quad Lock is an Australian brand from Melbourne that makes phone cases and mounts built around one shared twist-and-lock interface, so a single case works across bike, car, desk and wall mounts.
