2.2.2.F.c. Existing Rule:
2.2. Supersport Classes
2.2.2 Class Equipment Requirements
F. "Engine Modifications"
c. Cam timing may be altered by modifying or replacing sprockets, substituting adjustable sprockets, or other means such that the original camshaft, including lift, duration, profile and weight are not altered.

2.2.2.F.c. Propposed Rule Change/Addition:
2.2 Supersport Classes
2.2.2 Class Equipment Requirements
F. "Engine Modifications"
c. Cam timing may be altered by modifying or replacing sprockets, substituting adjustable sprockets, or other means such that the original camshaft, including lift, duration, profile and weight are not altered. Camshaft timing is to remain fixed while engine is operating, unless originally equipped with variable cam/valve timing. A camshaft chain tensioner of stock or aftermarket origin may be installed.