Frameset Specifications: For seatpost 27.2mm, 28.6mm 1-1/8'' Head tube, 34-34mm external headset, BSA BB68mm threaded bottom bracket, C/Rim brake, Quick Release F100mm R130mm QR, For 700C×23C/700C×25C tires.
Chrome-molybdenum steel frame: 4130 Seamless chromium-molybdenum steel, partially heat-treated steel tubing Process, High strength and light weight, good durability/riding comfort, and has good elastic properties for long riding.