.625 Hawk Dynalite with Bridgebolt NDL DTC-30 brake pads are designed specifically for dirt circle track applications. These pads feature a uniquely controllable torque and smooth consistent feel and bite. They offer superior release and torque control characteristics as well as very low rotor wear. They fit Wilwood with bridge bolt, Outlaw, and Sierra. Optimal temperature range: 100 to 1200 degrees F (38 to 649 degrees C).