I ride Marathon Supreme 35's on my Tricross. They roll faster than the stock Specialized Borough 32's that came on the bike. No flats and high volume works well for me in Colorado. I ride a lot of mixed surfaces and they work great. Sometimes I wish that I had gotten them in 32's only because the options for wheelsets open up exponentially. I wonder if I could mount a 35 on a DT Swiss 1.1 Rim, everything seems to point to a 32 being the max. Keep that in mind.