If you are using any ground attachments, these are a must. It does take a little time to install for the initial fit, but they are much better than when I had to remove all the bolts as I did with my old weights years ago. Only two bolts to remove them to get to the air valve...not a big deal. If you use the slime product to prevent air loss, you shouldn't have to get to the valves very often. Great investment !!!
Craftsman 55 lb. Wheel Weight is recommended by runty1