Ending the rotor size myth – Why you should have a bigger brake rotor at the back than the front | ENDURO Mountainbike Magazine
Rotor Bike Components, North America | Rotor America
Amazon.com : BUCKLOS Shimano MT200 MTB Hydraulic Disc Brakes Set with 160mm Rotors, Front Left 800mm Rear Right 1550mm/1650mm Mountain Bike Hydraulic Brake Aluminum Alloy Levers with Calipers : Sports & Outdoors