2017 rule changes

[big_sur]

2.7 Endurance
Move middleweights out of ultralight\lightweight endurance.

There's a big grid and a lot of speed disparity that creates a lot of lapped traffic and encourages unnecessarily aggressive riding in UL. The slow middleweights have way too much power to pass on exit so they're getting dive bombed by multiple ultralights into the same turn which has caused at least one crash this year that I know of.

2.10 Production Cup
Brake master cylinder may be replaced with parts of unlimited origin.

I've changed rotor, pads, and put in $$$$ fluid, but still get terrible brake fade to the point where it's a safety concern.