Action-camera riding mounts: handlebar (22.2-35 mm), seat rail, helmet, chin bar, drone-to-bike crossover, 1/4-20 adaptor

Bars of 22.2, 25.4, 31.8 or 35 mm where you clamp it. The clamp comes in a 25.4 mm and a 35 mm size; a soft TPU shim fits the 25.4 clamp to 22.2 mm (7/8 inch) bars and the 35 clamp to 31.8 mm bars. That covers BMX, older mountain-bike and most motorcycle bars (22.2), upright and 1 inch bars (25.4), oversize road and mountain-bike bars (31.8) and 35 mm bars. Measure the bar where the mount goes, which is often thinner than at the stem.

Cameras and adapters that use the common action-cam finger interface: GoPro HERO-style and DJI Osmo Action-style cameras, and Insta360 cameras on their finger adapter. No camera maker publishes the finger drawing, so a free coupon with 3.1, 3.3 and 3.5 mm gaps comes first; clip your camera on and we print your mount at the gap that is snug. For cameras with only a 1/4-20 thread, use a finger adapter.

It clamps the two round 7 mm saddle rails, which is the standard rail size. A plate goes under the rails and a small cap goes over each rail; the caps slide along one long slot, so any rail spacing from 27 to 56 mm fits. The camera hangs under the saddle facing back. It is not for carbon or oval rails, or for saddles with a single central rail.

The base has a curved underside that we make to your helmet's curve. A free gauge card with four arcs (70, 95, 120 and 150 mm radius) comes first: hold each arc against the helmet where the mount will go and tell us the one with the smallest gap. The chin-bar base works the same way across the chin bar. Both stick on with outdoor double-sided mounting tape, which is not included.

It is the handlebar clamp with two ears that take the tilt holder from our FPV action-camera mount. Undo the holder's two M3 bolts on the drone, bolt it into the crossover on the bike, and the camera keeps its 0 to 40 degree angle stops. One camera and holder can then move between drone and bike in a couple of minutes.

A standard 1/4-20 hex nut slides into a pocket in the side of the block. The tripod screw passes through the floor into the nut, and the three camera fingers are on top. We use a metal nut instead of printed threads because a printed thread wears quickly. The nut is not included.

We make no safety claims. They hold a camera and are not for structural or safety use. Check every bolt and the camera thumbscrew before every ride, use a camera tether, and keep the mount clear of brakes, levers and cables. Helmet and chin bases are fitted at your own risk; follow your helmet maker's advice on accessories.

Hardware is not included. A handlebar mount or crossover needs two M4 x 14 socket head bolts and two M4 nuts. The seat-rail mount needs four M4 x 16 socket head bolts, four M4 washers and four M4 nuts. The camera needs an M5 action-cam thumbscrew and a nyloc nut, and the tripod adaptor one 1/4-20 hex nut. All are standard hardware-store sizes.

Use Get a quote and choose Request a quote, naming the mounts, your bar size, the rail spacing if it is unusual, the colour and the quantity. We send the free coupons first if you need them, then confirm the price and lead time before anything is printed.