For local rides (<30 miles, near home), I carry 1 tube and a patch kit (plus a mini tool, road morph pump and pedros tire levers). For longer rides (80+) and rides out of town, I'll have 2 tubes (3 if its my Friday) + all of the above stuff. I have actually needed 2 tubes on a ride (had a defective batch in San Diego and had 2 blow at the valve stem, where they could not be patched).
CA

