Advanced 7.1 Inch Vented Brake Disc 0.612 Inch ThickHeat is the enemy of speed, but this 7. 1" vented disc, at 0. 612" thick, fights back with channels that expel gases and cool efficiently. It bolts to standard four bolt hubs, upgrading any kart's thermal management. In endurance races or hot laps, venting reduces fade, maintaining grip when others slip. This allows consistent late braking tactics for time gains. Vented structure: Promotes airflow for lower operating temps. 0. 612" thickness: Robust