EBC MD-Series Brake Disc MD671. EBC Motocross MD series discs are 100% British made with durable heat treated tough stainless steel in the new Pineham plant in Northampton. 1x MD671 EBC Brake Disc. Product Type: Brake Discs. Hole to Hole: 95mm. You can send us a message by using the “Questions and answers” section towards the bottom of the page.