2017 rule changes

[tecknojoe]

2.7.A
There's too many dangerous scenarios and accidents in Middleweight / LW / ULW endurance. ULW groups getting in the way of fast 600s, slow 600s passing ULW and slamming on the brakes in front of them, ULW packs flying into the back of slower groups of LW / 600s.
Alternative solutions:
- Riders must qualify within x% of fastest practice time of registered riders in their endurance class.
- Middleweight gets moved to the Heavyweight / Open endurance, leaving LW / ULW as it's own endurance race.

2.7.A
Currently allows colorado class bikes in ultralightweight endurance. ULW should be production cup bikes, everything else should race LW
New Rule: Displacement specifications for Ultra Lightweight (based on Production class rules section 2.10).

[gsnyder828]

2.2.2 Section C

Add subsection:

y: Open Supersport Only: Adjustable Swingarm Pivot, Rear Suspension Linkage, Steering Stem Insert and Triple Clamps

Rationale: Better align Open Supersport rules with 2017 MotoAmerica 1000 Superstock rules.

Note: Leaving out the frame modification, swingarm bracing and modification parts of the MotoAmerica changes - just incorporating the easy bolt on stuff.