Rider-matched picks
Size-matched bells & horns picks for e-bike riders, with fit and feature priorities curated for how e-bike riders actually ride.
Check Amazon for current pricing and availability.

Cateye
Mid-range option; fits drop-bar primarily; 23.8 mm optimized mount

Crane Bell
Fits 22.2-31.8 mm bars with shim/band; universal strap compatibility

Diamondback
Standard 22.2 mm handlebar clamp - fits virtually all road, hybrid, mountain, and kids handlebars.

Firmstrong
Bolt-on to any standard 22.2-25.4mm handlebar. Color-matches Firmstrong's cruiser palette but works on any bike.

Joystar
Fits standard kids bike handlebars (22.2-25.4 mm). Designed as a like-for-like replacement for the bell that ships on Joystar kids bikes.

Knog
Compact spherical design; universal mount fits 22.2-31.8 mm

Mirrycle
High-output bell; rotating dinger mounts on any bar angle; 22.2-31.8 mm

Rockbros
Budget brass option; fits 22.2-31.8 mm with adjustable clamp; all bar types

Royalbaby
Standard 22.2 mm clamp fits most kids bikes including the entire RoyalBaby lineup. Thumb-lever placement is sized for small hands.

Spurcycle
Fits drop-bar and flat-bar; universal band clamp, 22.2-31.8 mm

Woom
Fits handlebar diameters 19 mm to 22.2 mm - covers virtually all kids' bikes including the full Woom range.
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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.
Confirm handlebar diameter (22.2 mm flat-bar / 23.8 mm drop / 31.8 mm oversized). Many bells use shims, rubber bands, or universal mounts to fit multiple diameters. Check clamp compatibility with aerobars, ergobars, or butterfly handlebars.
Cross-shop the bells & horns e-bike riders actually consider - specs, fit, and the deciding factor.