Barn to Brat Episode 5: Frame hoop and seat mount - YouTube
Black Steel Cafe Racer Frame Hoop Tracker Motorcycle Flat End Seat Loop 230MM : Amazon.co.uk: Automotive
Braking 230mm Flat Senkauto Motorcycle Cafe Racer Seat Frame Hoop Loop Tracker End with LED Brake Turn Signal Light For Suzuki Honda Yamaha pinball-led.co.uk