Fast rolling, street style tread built tough for cargo use with heavy loadsLarge rectangular knobs down the middle section, paired with textured shoulder knobs offer good traction and durable, long lasting tread lifeSDEF â Super Defense, extremely strong double carcass gives the tire excellent safety under heavy loads and increased extra puncture protectionAE â Addix E compound is an E-bike specific compound that ensures exceptionally good durability, riding performance and grip, with ECE-R75 certificationStandard20x2.35406WireBk/Blk65910g67x2SDEF/AE/REF/EBIKE50YesUPC/EAN/GTIN: 4026495892575