Tip of the Week

Now, listen here, son. Take yerself a penny and slide it ‘twixt them treads on yer tire. A “rib” there, well, it’s them raised bits that run ‘round the whole tire. Y’see, the tread’s made up of a good few ribs. Next, turn ol’ Lincoln’s head down into them treads. If his noggin hides ‘tween them ribs, reckon yer tread’s still above 2/32”. But if his whole head’s plain as day, time to swap that…