Rolls quickly in the 2.25 size. Provides enough traction for most hardpack/loose-over-hard riding conditions.
Center knobs wear out quickly. Does not have the cornering grip to really push the bike.Overall Review: Schwalbe's Nobby Nic tires came stock on my Giant Trance, and I decided to try them out before going back to my preferred brand of tires (WTB, for reference). Although the Nobby Nic rolled surprisingly well and made my trailbike feel lighter than its true weight, the rear started to wear out sooner than I would have expected. When I rotated the front tire to the back and put on a WTB Bronson in front, I realized what I'd been missing in cornering traction. The Nobby Nics are fine for trail riding that leans more toward the cross-country end of the spectrum, but for more aggressive trails I'll be sticking with a tire that can hook up more confidently in the turns.