SWB PICK UP 26x2.6 PERF SUPERDEFENSE BK/BSK/REF ADDIX E50 WIREFast rolling, street style tread built tough for cargo use with heavy loads Large rectangular knobs down the middle section, paired with textured shoulder knobs offer good traction and durable, long lasting tread life SDEF Super Defense, extremely strong double carcass gives the tire excellent safety under heavy loads and increased extra puncture protection AE Addix E compound is an E bike specific compound that ensures exceptionally good durability,