Pro Street Legal Motorcycle
SERIES: Powered by www.Quixtar.com
Pro Street Legal Motorcycle races are held on www.NHRA.com
DESIGNATION: MX followed by rider number.
CLASS DESCRIPTION: The Pro Street Legal Motorcycle Class contests street legal, production based stock, as well as stock appearing motorcycles with engine modifications, & optional power adders, without a wheelie bar.
Rules are structured to keep the competition close between all street bike types. Weight, wheelbase and other options may be adjusted pending the parity of performance numbers between naturally aspirated, NOS and Turbo entrants.
FORMAT: Qualifying and eliminations will be even start on a .400 pro tree. Eliminations are on an NHRA pro ladder.
ROAD COURSE: Bikes should be street legal and, in order to prove street ability, may be required to perform a road test. The road course can be up to 2 miles long, and following the end of the course, all bikes will be required to turn off their engines and re-fire them within one minute and pass a designated point under power.
ENGINE: Any engine originally used in a production motorcycle may be used. Factory OEM cases, cylinder blocks and heads must be used. Air-cooled engines may use aftermarket cast aluminum cylinder blocks. Unlimited displacement and engine modifications are allowed. Any ignition, electrical systems, and fuel injection controllers are allowed. Crankcase and all tanks containing fluids must have vent tubes routed to a catch can or have non-spill breather system. It is recommended that all bikes use a flat oil pan with no protrusions and have a recessed or side-mounted drain plug.
NOS - NOS bottles must be stamped DOT-1800 rating and securely mounted inside perimeter of frame members and or bodywork. Bottles may be mounted to swing arm only if mount is welded or attached by a minimum of two 5/16" bolts with a bottle anti-drop device. Bottle must have a clamp to keep bottle tight in mount. No hose clamps or tie wraps. Line from bottle to solenoid must be high pressure steel braid or steel. To allow access to NOS bottle, all NOS bikes must have thumb (butterfly) body fasteners on any aftermarket body pieces that cover bottle to allow removal of panel or section by hand without the use of tools.
ENGINE SWAP: Engine swaps of the same family are allowed. All engines within a given engine family must have the motor mounts and cam drive in the same location, as well as have the same cylinder spacing (i.e. Katana, Bandit, and oil cooled GSXR motors can be interchanged. GSXR 750 motors may be swapped out for GSXR 1100 motors). Slight modifications can be made to the frame or the motor mount plates. All motor swaps must be direct bolt-in only.
FUEL: Gasoline or E85 only. Nitro methane is prohibited.
Water cooled bikes must retain complete functional cooling system - radiator, water pump, hoses, coolant, etc. Filled or solid blocks not allowed. Cooling system must be sufficient to operate bike during road course.
STARTING SYSTEMS: Engine should be self-starting and use stock starter. External starters, batteries, or boosters are allowed. No push starts.
TAIL LIGHT: Tail light required and must be functional and operational when the track lighting is being used. Any factory or aftermarket components may be used. Turn indicators optional.
TRANSMISSION: Transmission may be modified, must utilize OEM-style shift drum. Air or electric shifters allowed.
CLUTCH: Stock type, slider or two-stage lockup clutches allowed. Clutch engagement must be completely controlled by the riders hand with the clutch lever. No other devices can be utilized to assist clutch engagement.
KILL SWITCHES: Tether kill switches required, must disable ignition, fuel pump(s) and nitrous system solenoids.
FRAME: Stock OEM frames must be used, no aftermarket frames are allowed. Frame must have unaltered OEM VIN number in the original location. Strengthening modifications to stock frames are permitted as long as the frame is not weakened. Strengthening gussets and/or tubes may be added but none removed.
FRONT SUSPENSION: Replacement or aftermarket triple clamps with the same offset as the OEM triple clamps, or no less than 1.25" measured from the center of the steering stem to the center of the forks, are allowed. Front axle location relative to fork tube center cannot be changed. Rigid front forks are not allowed. Lightweight aftermarket drag racing front-end assemblies are not allowed. Minimum front fork travel is 1 inch. Front suspension retention straps are allowed. Steering dampers recommended.
REAR SUSPENSION: Swing arm style rear suspension required, no fully welded tail sections allowed. Any stock, modified stock, or aftermarket swing arms will be allowed. Swing arm pivot location must remain in original location. Original style front pivot bolt or bolts must be used. Bikes with working rear suspension are allowed any type suspension system, as long as it utilizes a conventional-style single front pivot. Bikes with solid rear suspension are allowed struts to replace the factory shock(s). Swing arm may not be welded to the frame in any manner.
TIRES: Approved motorcycle tires are required. Maximum 7” rear tire width.
WHEELS: Approved street bike wheels only. Wheels wider than 6.25” must have a bead lock.
BRAKES: Front and rear hydraulic brakes are mandatory. OEM Rotors and calipers are recommended and cannot be modified. Replacement rotors must be DOT approved and be the same diameter and thickness or larger than stock rotors and cannot be modified. Titanium, magnesium or carbon fiber rotors/carriers are not allowed unless originally equipped. Calipers must be DOT approved. Any brake pad or stainless steel braided brake lines may be used.
GROUND CLEARANCE: Minimum 2 inches with rider sitting on bike straight up with 15 PSI in the rear tire. Bikes utilizing front end tie down straps will be measured with front suspension compressed within 1” of suspension stop.
WHEELBASE / WEIGHT: From Stock to 69” maximum wheelbase, no weight limit in this class.
BALLAST: All ballast must be securely mounted.
BODY: All body parts, including fairings, fenders, tank, and tailpiece can be original, or aftermarket duplicates. Alterations are permitted if modified are in a manner that still maintains the general overall appearance and shape of original bodywork of the make and model as depicted by the MFG.
SEAT: Seat may be modified or fabricated, can be lowered, but must remain in the same location.
CHAINGUARD: OEM or fabricated chain guard required must cover the width of the chain and the top run of the centerline between the sprockets. Fabricated chain guards can be constructed.
CONTROLS: Handlebars must measure at least 20" wide. Grips may not extend below bottom of fork crown. Snap back throttle return mandatory. Foot pegs may be rear set. Any Shifter or brake pedal that can be operated with the foot on the peg is permitted. Launch pegs may be used.
SPECIAL CLASS RULES: Pro Street Legal Motorcycle Class Rules. 10.00 No wheelie bar.
GENERAL SAFETY REGULATIONS AND RACING CREDENTIALS
Riders must have NHRA competition motorcycle license for motorcycles capable of running 9.99 or quicker, NHRA & Quixtar membership to accumulate 100% points. Bike must pass NHRA and / or local track motorcycle safety inspection.
ENTRY FEE and PAYOUTS:
All racers must pay an entry fee at the gate. This will vary by track and event. Some events are one day and some are two day events. If you cannot attend the Sunday of a two day event, you still must pay the two day fee at the gate. No refund of tech-card fees will be done after first round of qualifying. 8 bike minimum, $95.00 to race ~ $500.00 to win, $300.00 to runner-up.
All bikes get to race. We will need to set you up in the bracket class if you fail to qualify.
Any prize-money won by a non-member will have membership fees deducted from winnings.
Any rule revision deemed necessary for the reasons of safety may be made at any time, even after the start of an event, and may be made effective immediately.
There are NO REFUNDS.
Go to www.dragbike.com