The Evol is a solid entry level machine with everything you need to start making serious progression with your riding. Boasting a crmo toptube and a sealed integrated headset and Mid-sized bottom bracket, details like the big logo Radio Rookie tires and Oil Slick sprocket make the EVOL something very special and unique. FRAME: RADIO "EVOL" frame, crmo top tube, 1020 hi-ten FORK: RADIO "AM" fork, 1020 hi-ten, crmo steerer, tapered legs BARS: RADIO "AM 20" bar, 1020 hi-ten GRIPS: SALT "EX" grips, flangless, 155mm STEM: RADIO "AM" topload stem, 50mm reach HEADSET: SALT "PRO" integrated headset, sealed bearing ROTOR: holes for removable gyro tabs BRAKE LEVER: RADIO "AM" brake lever, alloy, rear BRAKE: RADIO "AM" u-brake, alloy, rear CRANKS: RADIO "ROOKIE" 3pc crank, tubular, crmo, 165mm, 8 spline BB: RADIO "MID" bb set, press fit, sealed bearing PEDALS: RADIO "PRO" pedals, nylon/fiberglass CHAIN: SALT "AM" chain, WZ1 type SPROCKET: RADIO "VISION" sprocket, steel, 25t DRIVER: cassette driver, 9t, lb FRONT HUB: RADIO "ROOKIE" hub, steel, loose ball, 3/8"s, 36h REAR HUB: RADIO "AM" cassette hub, alloy, semi-sealed, 9t, 14mm axle, 36h FRONT RIM: RADIO "ROOKIE" rim, single wall REAR RIM: RADIO "ROOKIE" rim, single wall SEAT: RADIO "CENTURY" combo seat, slim padded SEAT CLAMP: RADIO "SLIM" seat clamp, alloy TIRES: RADIO "ROOKIE" tires, 2.3", front & rear