Gravity Training Wheels Universal 12-20 inch Kids Bike

Learning to ride a bike is a process measured in wobbles, corrections, and growing confidence — and the training wheels underneath make a real difference in how that process goes. The Gravity Universal Training Wheels are built from metal rather than the plastic used in many budget alternatives, which means they absorb the lateral impacts and hard landings of a learning rider without flexing, cracking, or deforming. The oversize mounting arm handles both alloy and steel rear axle configurations, covering the realistic range of bikes a parent is likely to be working with across the 12-to-20-inch size spectrum.

Installation uses standard hardware at the rear axle and is straightforward enough for parents to complete without a bike stand or specialist knowledge. Ride height can be set during installation — a useful detail, since setting the wheels slightly elevated encourages the child to develop genuine balance rather than leaning entirely on the training wheels for support. The silver metal finish is clean and functional, though like any bare metal component it benefits from being stored dry rather than left out in persistent wet conditions. For families who want training wheels that will last through one child's learning process and be ready for the next, the metal construction here is a meaningful step up from what typically comes bundled with entry-level bikes.