The Lumen ups the ante on Free Agent's Street game with a steel frameset that includes a chromoly main triangle, as well as 6mm dropouts for extra toughness. A threadless, sealed-bearing headset ensures silky smooth x-ups for years to come. The Free Agent 3-piece, hollow chromoly crankset drives a set of alloy double-wall rims laced to Free Agent alloy hubs, all of which rolls on Kenda Admiral 20 x 2.35-inch high-pressure tires for relentless traction and rock-solid landings.