CRA Members
You are invited to attend and weigh in at a Special Rules Forum which will be held virtually (link below) on Wednesday, February 28th, 2024 at 7pm in regards to the following:
SuperSport Rule Amendment: Section 7:10.C
Current Rule: Stock valves, guides and seats must remain OEM. Valve seat may be recut and multi angle valve jobs are allowed.
Proposed change: Add *Aftermarket replacement valves may be used as long as they are of stock size “diameter” and not lighter weight than OEM.
Reason for proposed change: Cost savings. Currently the cost of replacement valves for a 2008+ Yamaha r6 is $ 2275.00, while for a set of Vance & Hines replacement valves the MSRP cost is $1060.00. This is a $1215.00 savings. These aftermarket replacement valves will offer no additional performance gains, simply a more cost effective replacement part. The Vance and Hines replacement valves are also homologated for use in MotoAmerica SuperSport.
Valve specs:
OEM 2008 Yamaha R6: Ex 23.03mm diameter, 14g weight, In 27.01mm diameter, 18g weight
Vance and Hines R6 Valves: Ex 23.02mm diameter, 14g weight, In 27.01mm diameter, 18g weight
Special Rules Forum
Feb 28, 2024, 7:00 – 8:00 PM (America/Chicago)
Please join my meeting from your computer, tablet or smartphone.
https://meet.goto.com/854136837
You can also dial in using your phone.
Access Code: 854-136-837
United States: +1 (408) 650-3123
Get the app now and be ready when your first meeting starts:
https://meet.goto.com/install
We hope to see you there! If you are unable to attend, but would like to weigh in on the discussion, please email your thoughts, comments, and concerns to racerliaison@cra-mn.com.
