Classic tire size with modern features
-European inspired hybrid styling with a raised center line and grooved side tread
-Features CSTs Anti puncture layer and a reflective side wall
-APL - Anti-Puncture Layer, features a respectable 0.7mm layer of rubber between the tread and the casing
-SC - Single compound, one compound throughout the tread optimized for longevity and performance
-REF - Reflective sidewall striping or hotpatch to aid in low light visibility
This is the size used on most English 3-speed bicycles. Also used on some American made (Non-Schwinn) bikes by Huffy, Murray, Sears and others.
CST is the parent company of Maxxis Tires.