NON ROUND DISK FIX BATFLY Thanks to BRAKING® off road world championship experience, we created the new asymmetric non round design for weight optimization and mud cleaning performance. Alternating grooves are created on both surfaces of the disk creating a self-ventilating mechanism. TECHNICAL DATA SERIES W-FIX Batfly DESCRIPTION: non round disc Fix Batfly CHARACTERISTICS: non round disk profile; Torx screws with special Loctite glue included in the packaging. Alternate grooves are created on both surfaces of the disc creating a self-ventilation mechanism