Sunstar EPTA Stage 0 race rotors - increased heat dissipation
Sunstar's new EPTA Stage 0 (zero) racing brake rotors are used by many top teams, including the Kawasaki Puccetti World Supersport team (Can Oncu and Attack Yamaha Performance in AMA SBK in the United States - Jake Gagne and Cameron Petersen).
Standing for "Enhanced Performance Torque Application", the name EPTA is taken from the ancient Greek for seven - representing the durable, reliable, high-strength seven-point mount system between the carrier and the pad track.
The AL 7075 hard anodised aluminium carrier/hub (30 µm) mounts to a 5.8 mm induction hardened stainless steel rotor, with Sunstar's proprietary seven-point EPTA disc flotation mechanism. The rotor is machined with grooves with ventilation holes machined in the pad track, for better cooling, and optimised lightening holes to avoid vibration onset.
Sunstar Sales Manager Gianluca Olivieri told IDN: "The straight 3 mm thick profiles protruding from the wave shape on the outer diameter of the disc form a radiating area that dissipates heat, without being touched by the pads, but with a higher thermal inertia than the rest of the disc. The 'radiators' have been shown to help heat dissipation by up to 36 degrees C less than the maximum temperature measured on Sunstar's standard EPTA rotor for SBK use.puccetti
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