Pure Fix Glow in the Dark Fixed Gear Single Speed Fixie Bike Stylish, lightweight, and fast single-speed road bike finished with solar-activated paint that glows for an hour plus in the dark after an hour of daytime sun exposure Flexible flip-flop rear hub lets you quickly change from fixed gear for a connected feel for the road to freewheel for coasting and cruising Durable, fully Tig-welded high tensile steel frame and fork is built to last; front alloy dual pivot brakes for quick stopping 40mm deep-dish wheels with Thickslick 700 x 28C tires for excellent control and contact with the road; drome saddle for a mix of comfort and style Bike ships 90% assembled; available in seven sizes; backed by manufacturer's warranty on frame and components