Designed to perform on the streets, the velodrome, and everywhere in between, the affordable, lightweight Keirin Pro Complete Track Bike with triple-butted 6061 aluminum frame is ready to race. Pure Cycles offers two complete track bike options with aluminum tubing – the Keirin (double-butted) and Keirin Pro (triple-butted) – that are engineered for speed with race-tested geometry and top-tier components. The Keirin Pro frame with triple-butted 6061 aluminum tubing is designed to give you the edge on the track and the streets. Featuring an integrated headset and smooth welds, it’s light, stiff, responsive, and ready for anything from a criterium to a commute. Designed for the drome and tough enough for the streets, this track bike features a carbon fork with aluminum steerer to help reduce road vibrations, alloy drop bars with both track grips and handlebar tape, Pure Fix Drome saddle, a 46 x 16 gear ratio, Pure Fix 30mm Deep Dish 32-hole rims with alloy flip-flop hubs, and Hutchinson tires (700 x 25C), It also includes integrated chain tensioners and headset, sealed bottom bracket, tapered head tube, 31.8mm seatpost clamp, and a 68mm English threaded bottom bracket. Weighing 22 pounds (55cm model), the Keirin Pro Complete Track Bike is available in five sizes: 49cm: Fits riders 4 feet, 11 inches to 5 feet, 2 inches 52cm: Fits riders 5 feet, 2 inches to 5 feet, 7 inches 55cm: Fits riders 5 feet, 7 inches to 5 feet, 11 inches 58cm: Fits riders 5 feet, 10 inches to 6 feet, 1 inch 61cm: Fits riders 6 feet to 6 feet, 4 inches Aluminum bike frames can have double-butted and triple-butted tubes that have different thicknesses, allowing the frame to handle high-stress points at the end of the tubes without having additional weight through the middle. Double-butted frames add extra material at each end of the tube where additional strength is required. Triple-butted frames use the same process, but reduces weight in the center even more. Celebrating bicycling for all that it offers, Pure Cycles offers a variety of frame, geometry, and gearing options as well as a cornucopia of compatible accessories, including different styles of handlebars, saddles, water bottle cages, foot straps, and more.
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