TO: 2025 AMA Amateur National Motocross Championship Participants & 2025 RCSX Participants

FROM: MX Sports

DATE: February 24, 2025

SUBJECT: COMPETITION BULLETIN 2025-5: 

Clarification on Wheelbase and Width in 85cc Classes

A clarification has been added onto the class charts for the 85cc classes in the AMA Amateur National Motocross Championship and for the Ricky Carmichael Amateur Supercross.

For the AMA Amateur National Motocross Championship, classes 28. 85cc (10-12) Limited and 29. 85cc (10-12) have had the following explanation added to them: Max. Wheels: Front 17”; Rear 14” & Max. Wheelbase: 51.5”

For the Ricky Carmichael Amateur Supercross, classes 27. 85cc (10-12) Limited and 28. 85cc (10-12) have had the following explanation added to them: Max. Wheels: Front 17”; Rear 14” & Max. Wheelbase: 51.5”

Please direct all comments to [email protected].