The Sparrow was designed to keep things simple. This is a stripped down A to B bike- fast and light as a feather, best used on city streets. PRODUCT HIGHLIGHTS Lightest single speed in its class: Just 22 pounds! Premium aluminum frame, fork and fork steerer Aftermarket SDG Duster saddle Rustproof KMC chain Color-matched aero' rims with cnc-machined brake tracks Authentic WTB Thick Slick tires