Originally Posted by tarwheel

If you don't need any tread, the Rivendell Jack Brown Blues might be a good choice. I've the JB Greens (with thinner tread and no lining) and the measure 35 mm wide on Open Pro rims. No flats in 1,500 miles of riding on roads, paved and unpaved trails. The Jack Browns roll very nice for a wide tire and are reasonably light.