Surly Pack Rat 26" Frameset - Hi-Viz Black - The Pack Rat is designed around porteur-style racks and front-loading optimization, with a front cargo-specific design to eliminate steering issues. The fork features internal routing for generator hubs and rear frame dropouts to accommodate multiple drivetrain configurations. It's an ideal choice for loaded commutes and bike trips with a lighter load, but also rides great when unloaded.100% Surly 4130 Chromoly frame, main triangle is double-butted; 1-1/8" threadless brazed Chromoly forkBosses front and rear for cantilever or linear-pull brakes, rack and fender eyelets at the dropouts, eyelets at the crown, and fully threaded through-blade fork eyelets for a front rackFeatures 26" wheels, with room for tires up to 26 x 2.7Semi-horizontal dropouts with a derailleur hanger for geared or singlespeed drivetrains and/or wheelbase adjustability