The red star small noble frame number in which location

The Red Star Aristocrat frame number is located in the front engine compartment of the vehicle, specifically under the front windshield, next to the positive terminal of the vehicle's battery. On Red Star Noble bikes, the frame number is usually located on the side above the frame downtube. Specifically, the frame number can be found where the downtube meets the rear fork or where the downtube meets the seat tube.