Current 41+ 12 Inch Atv Tires. 1,224 12 inch atv tires products are offered for sale by suppliers on alibaba.com, of which atv/utv parts & accessories accounts for 12%, caster wheels there are 427 suppliers who sells 12 inch atv tires on alibaba.com, mainly located in asia. Save money on 12 inch trailer tires. Known for developing durable tires extensively tested out by racing pro's before any tire hits the market.