Interesting Times with Cooper ST/Maxx Part of the Rig Review - What worked and what didn't for the last five months? Rig Review. TL;DR - My Cooper ST/Maxx tires finally gave me a bit of trouble. Still, I'll probably buy a 5th set when these wear out because they've performed better than any other tire I've seen others run on the trail. Valve stems that insert from the outside! Valve stems that insert from the outside! Published in Rig Review Section and The Long Way; experienced on 2022-09-02 colby valvecooper tiresst maxxvalve stemwheels & tires Previous Post How are Those Expensive scheel-mann Seats Doing? (9-month review) Next Post Lookout to Lookout | Lassen 1