33.3-9.5-16 BKT TR-171 Tires and Wheels You will be purchasing 4) 33.3-9.5-16 BKT TR-171 Tires mounted on your choice of rims. All Wild Boar Big Wheel Kits come mounted and include your center caps and lug nuts. The BKT brand is the top selling ATV/UTV tire on the market.