Off road-spec wheels (18-in. rear, 21-in. front) maximize choices for off-road-appropriate rubber, but the stock Metzeler Sahara Enduro 3 tires are happiest on pavement or hard-packed gravel. Large-diameter wheels, coupled with the wide, high-leverage handlebar, give the Terra quick, responsive steering at low speeds and off-road, at the expense of some high-speed stability—especially as you approach the claimed 113-mph top speed. The tall, light Terra will wander a bit at highway speeds and in heavy winds, where the bolt-upright riding position turns gusty winds into unwanted steering inputs.