2009 AMA Congress Competition Proposal

Proposal:

Replace DTX rules with:

1. To be eligible for a DTX class, the following cannot be changed or modified.

A. Airbox, carburetor, (jetting allowed),electronics, complete exhaust, all engine components, body work, intake (aftermarket reeds allowed), swing arm, wheel hubs, triple clamps, (include handlebar clamps), frame & subframe

B.  All motorcycles/minicycles must be approved by the AMA for DTX competition.

C.  Engine must be the same year as frame.

D.  Front fender must be OEM or OEM replacement.  It may be removed.  Number plate may be replaced with traditional DT style plate.

E. Front brake must be used for TT events but must be disabled or removed for DT events.

F.  Any standard production tire that is available through normal commercial channels will be accepted.  Knobby tires are promoters option.

G.  OEM exhaust in good condition is exempt from 99db rule.

H.  Cylinder replating is allowed but must retain OEM bore.

I.  Changes to carburetor jetting is allowed.

J.  OEM front & rear suspension may be altered with internal modifications only.  Springs & linkage may be replaced with aftermarket parts.

K.  DTX classes that use oil injection systems, only oil may be put in the reservoir.  Injection pumps must be working at all times.  Pre-mix gasoline is not allowed in the oil injection system or fuel tank.

L.  Only like make, model and year OEM ring and pinion may be used.  All carburetors are to be orginal equipment.  The intake side of the cylinder/output side of the carburetor must have an opening no larger than the above mentioned size for the class.  The opening must be a round opening.  An oval shaped opening is NOT acceptable.  The restriction must be a minimum of 4mm thick.  The hole must have square corners (no radius of chamfer on either side).

M. Seat height will be measured at the lowest part of the top of the seat.  See wheelbase measurements as shown in 3.3-G1 process in Appendix 6.6

N.  Violations of the DTX class rules as determined by the protest process or by the event referee will result in disqualification from the event.  A second violation of the DTX class rules will warrant a 1 year suspension from all AMA sanctioned competition.  A warning or fine may be imposed if the violation is deemed by the meet referee to be cosmetic in nature and/or non-performance enhancing.

Must edit rule book to reflect these changes.  ie 50cc stock rules

Request these be adopted for 2010

Reason for proposal:

The DTX rules were made long before the 4 stroke bikes were available. It is time to revise and bring them up to date.  It is time to bring the class back to it's intended use, and that is a lower cost alternative to start racing and to be able to compete with like machines.

The intent of incorporating the PEE WEE classes in the DTX fold is to gain control over a class that has been governed by MX rules.

With these rules, we will have 2 Dirt Track classifications: DTX and Modified, eliminating the "Stock" class