I should have mentioned what to do if you can't get 55°: Ride in just shorts, shoes, and socks and have two 24" box fans, one pointed at groin, the other at head and torso, turned up high enough that you have to wear glasses to be able to see your instruments. It's impossible to put down much power if you can't get rid of the heat. It's like having 200w bulbs burning in your chest.
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