No they dont have anything to do with brake cooling, I've never really had a problem at any track with overheating brakes, they're just channels that feed air under and to the rear of the kart and in particular to the rear diffuser. Anderson has come up with many different nosecone designs over the years, pretty much a new one every year but really it boils down to personal/driver needs for downforce and balance.Ben & Toby, I'm, curious about your nosecones.
Do the small openings at the bottom feed the brake ducts?
Reason I ask is because my brother is a Carbon Fibre Technician & I am looking to create some new pods & bodywork for my kart.