new details and clarification:
it would be a good idea to have the "off" more like a later correction of the "on". so it would be best to design it first as it would be without the "off". The OFF should look like it's added after the shirt was ready printed. If you use the tire or tire trails please have a closer look to my given tire in description. it doesn't make any sense to use trails from a car.
it's about 4 people who drive offroad motorbikes (so not cars, no car tire trails). It's about the common phrase "on the road" which is not correct in our case, because we are most of the time not ON but OFF the road. So the joke is, not to be on the road.