Brake Disk Yamaha BWS, PGO, Jonway, Big Boy, Gomoto, Urban, Galectica, Scooter and many more. Sanling
Dimentions:  
Center hole: 41mm
Holes: 3
Hole to Hole: 57mm
OD: 155mm
Flat Disk
Will fit some Chinese Brands Scooters Bikes Motorcycles like Jonway Big Boy Gomoto Keeway
Big Boy Swift