The Nano 40c is built for speed, and let's just politely say it delivers. A 40mm, rounded profile and an elevated centerline provide enough volume for lower tire pressures and a smoother ride while still reducing drag and rolling resistance. this makes for an all out gravel destroyer that can still appease those clamoring for at truly big cyclocross tire. Winner? We think so. Gravel / Cyclocross / Dry to Damp/ Hardpack to Sand