Originally Posted by PW

I've been using the 60mm stuff in both blue and gold recently with great success (2 different tracks). I've been running new inserts in my tires and have found that the 60mm Dirt Webs work great with the ribs cut on fresh Dirt Tech inserts; no break-in needed. The cut insert gives you a little bit flatter profile and the firmness feels about right. My golds are up to speed within 2 runs