Avon – Avon Viper Stryke Scooter, including Viper Stryke AM63 front/rear fitments in 120/70-12 and 130/70-12, fronts in 120/70-14, 120/70-15, 100/80-16 and 110/70-16, and rears in 130/70-13, 140/60-13, 150/70-13, 140/60-14, 140/70-14, 120/80-16 and 140/70-16. Small wheels mean a small contact patch, so scooter tires have to work harder than most riders realise, particularly on wet city streets. The AM63 uses a high-silica compound for grip on cold, damp pavement and an aggressive directional groove pattern that pushes water clear at commuting speeds. Stiffer sidewalls resist the flex that makes a loaded scooter feel vague when carrying a passenger or a topbox full of shopping. Riders also benefit from the pattern's stability under hard braking, where a 12 or 13 in. wheel has little margin. Covering everything from 50cc city machines to larger 16 in. maxi-scooters, this Avon range keeps everyday commuting composed and secure. Front and rear fitments are grouped together, and several sizes are marked front/rear interchangeable, which simplifies buying a matched pair for a single machine. Sizes run from 12 in. city wheels up to 16 in. maxi-scooter rims.