Galfer Wave Disc Brake Rotor Precisely manufactured for powerful braking Galfer has long been an industry-leading name in braking performance. For their Wave rotor, they've taken all of their expertise and knowledge and poured it into a rotor that's designed to meet the needs of demanding riders. With a 2. 0mm thickness, the rotor will always stay stiff even under high braking forces, a key requirement for big descents and e-bike use. Not to mention the optimized high carbon 420 stainless steel and Wave design that keeps brake fade low and improves airflow across the board. If you're looking to up your braking game then look no further than the Galfer Wave Disc Rotor. Features2. 0mm thick rotor stays stiff even under heavy braking High carbon 420 stainless steel sheds heat and stays cool Wave design offers superior airflow Manufactured in Galfer's Spain-based factory E-MTB-approved to handle the unique needs of E-MTB riders SPECIFICATIONSDiameter180mm, 203mm, 223mm Material Stainless Steel Intended Use Trail, All-Mountain, e-MTBWeight | Galfer | Wave Disc Brake Rotor 180Mm E-Mtb 6 Bolt