Avon – Avon Cobra Chrome - Front - 19-23 in. Rim, including Cobra Chrome AV91 sizes such as 100/90-19, 110/90-19, MH90-21, 90/90-21, 130/60-21 and the tall 180/50-21 and 180/50-23 fitments, alongside white sidewall options. Anyone who has swapped a stock front for a 21 or 23 in. hoop knows the tire choice makes or breaks the result. Too stiff a sidewall and the bike fights every turn-in; too soft and it wallows under braking. The AV91 carcass is built to keep a narrow, tall front profile stable at highway speed while still allowing the low-effort steering these custom front ends need. Wide-tread 130/60B19 and 120/70ZR19 sizes suit performance baggers, while the slimmer MH90-21 and 80/90-21 profiles preserve a classic chopper stance. Deep circumferential grooves clear standing water, and the compound is formulated for even wear across long miles, so a show-quality Avon front still behaves like a serious touring tire. Trike and custom builders often pair these fronts with very wide rears, and the profile shape keeps that combination from feeling nervous at speed. Some sizes carry a future availability date.