BEIOU Carbon Fiber Road Bike 700C 8kg T800 Ultralight Frame 20 Speed Shimano 105 MTB Glossy 3K CBR12B1 BEIOU Carbon Fiber 700C Road Bike; SHIMANO 105, Usually arrives in 4--10 business days to Continental US address Braking System: SHIMANO 105; Speed Control System: SHIMANO 10510S Hub: Novatec Front 20H Rear 24H F372SB A271SB Toray Carbon Fiber for Frame, Handle Bar and Seat Post; Ultralight 8 kg High Cost-performance, Designed for Cycling Enthusiasts and Professional Athletes