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Racing OrganizationEligible ClassBump Up ClassGeneral RequirementsGeneral Requirements CitationSuspensionSuspension CitationBrakesBrakes CitationWheelsWheels CitationEngineEngine CitationExhaustExhaust CitationFrameFrame CitationBodyworkBodywork CitationDecalsDecals CitationNumber PlateNumber Plate CitationSafety WireSafety Wire CitationCatch CanCatch Can CitationFuelFuel CitationKill SwitchKill Switch CitationKickstarterKickstarter CitationSide / Center StandSide / Center Stand CitationSteering DamperSteering Damper CitationBelly Pan / Lower FairingItems That Must Be RemovedItems That Must Be Removed Citation
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WERAV1V2
Rule 8Maximum 38mm front fork diameter, two shock/spring units inclined no more than 45 degrees from vertical and the bottom shock mount not more than 4 inches from the center of the rear axleAll racebikes must have operating front and rear brakes. Expanding drum brakes or disc brakes up to 12” in diameter, no floating rotors, calipers may be a maximum of two pistons and may float (all components must be period correct)Rule 8.2.h., Rule Wire spoke built-up wheels, rim diameter will be 18” or greater, rim width may not exceed 2.75Only one engine at a time may be used. Make and model of carburetor is unrestricted provided that the design and operating principle was in use prior to the cutoff date, internal engine components may be modified, altered or changed as per Chapter 9, cylinders may be bored to a maximum of .060” for twinsRule 8.2.e.Swing-arm bracing or use of aftermarket performance swing-arms is allowed in all classes unless denied by special rules. These modifications must be made in a manner considered period for the class;The seat or fender must extend toward the rear, past a line drawn vertically through the rear axle.The rider, in position, must be fully visible from the side and top.
Transparent material may not be used to circumvent this rule. No streamlining may be attached to the rider or helmet. Full fairings of period design are allowed in all classes but not required (unless noted elsewhere). Dustbin fairings are not allowed. No brackets or bodywork shall be made of Carbon Fiber or Kevlar except in V6 and V7. 		Rule 8.2.o, Rule 8.2.p., RuleAll machines participating in WERA events, or events hosted by WERA affiliates, must prominently display the WERA decal (meaning the entire 4” circle) on both sides of their machine. Points and awards may be withheld from any racer who fails to display the WERA decals.
Rule 8.All machines must carry three sets of numbers, one on the front and one on each side. Numbers must be a minimum of 6” high, be spaced 1/2” apart and allow 1/2” of unobstructed numberplate/ background border.  Side numberplate/ background fields must be behind the rider on the machine’s tail section or on the lowers on the side of the machine - they must be visible when the rider is in position on the machine. If the side numbers are displayed on the lowers they must have a 1/8” minimum black line around the plate area outside of the required 1/2” of numberplate background. Single numbers on the top of the tail are allowed ONLY if the rider has numbers on each side of the lower as well. Numbers must be the rider’s correct WERA competition number and the only time a rider may change his competition number is when he/she is renewing his/her Competition License. Machines not meeting numberplate requirements will not pass technical inspection and/or will not be scored when racing. If you are found to have illegible numbers you may not race again until they are correct. Front numbers may be off center so long as they are still clearly readable by the corner workers and officials. EXPERT riders must use white numberplates with black numbers. Expert Champions will be entitled to wear a #1 plate in their championship class the following year. Novice Champions will be allowed to run a RED #1 on a white plate in the corresponding expert class their Rookie Expert season. NOVICE and PROVISIONAL NOVICE riders must use yellow numberplates with black numbers, fluorescent yellow is preferable. On all numberplates the number “1” must be a straight line (no serif). The only exception to this is if the rider is running only the number “1”, then there are no limitations. 

Rule 6.1. and Rule 6.3. and Rule 6.5.Axles or axle nuts, oil filler caps, kickstarter retaining bolts, axle caps and/or pinch bolts, oil drain plug(s), removable exhaust baffles, brake caliper bolts, *oil gallery plugs, radiator caps, brake torque arms, oil lines, coolant drains, speedo and tach cables, spin on oil filters/filter bolts, any pressure fed lubricant line, *fork oil drain screws/bolts, rear exhaust mount(s) (all), *brake pad retaining pins. *may be secured by silicone glue or H/D weather-strip adhesive in lieu of wiring. Substantial gauge “R” type spring clips may be used in certain applications but must be wired to the machine. Tab washers designed to accept safety wire may be used. Safety pin style clips may be used on most items but NOT on oil drains or oil filters. Fuel lines and any other fluid carrying lines must be clamped or secured by some other appropriate means.Rule 8.2.a., Rule 8.2.a1., Rule 8.2.b.A catch can shall be fitted where required or at the direction of a Technical Inspector.Rule 8.2.a2.Only gasoline may be used as a racebike fuel. Nothing may be added to the gasoline except commercially available, approved octane boosters and lubricating oils. No oxygen or nitrogen bearing additives (i.e.: NOS) in any Superbike or Superstock based class.
Rule 8.2.f.All racebikes must have an operating and marked engine kill switch on the handlebars. Dead man tethers are allowed and are suggested.Rule 8.2.g.Kick-start levers are allowed to remain on the machine however they must be secure to keep them from swinging out.Rule 8.2.i.Side and center stands must be removed.Rule 8.2.k.A steering damper is MANDATORY on all machines and must be mounted in a safe and workmanlike manner. The damper must not overly limit the amount of stock lock-to-lock handlebar travel.Rule 8.2.l. The license plate and bracket(s) must be removed.Rule 8.2.m.
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WERA350GP500GP or Formula 500 or an appropriate Vintage classMaximum 38mm front fork diameter, two shock/spring units inclined no more than 45 degrees from vertical and the bottom shock mount not more than 4 inches from the center of the rear axleInternal expanding drum brakes front and rear regardless of original equipment. Wire spoke built-up wheels, rim diameter will be 18” or greater, rim width may not exceed 2.75Superstock rules except the following: any ignition system and coils, aftermarket cam chain and/or tensioners, starter and charging system may be removed, wiring harness may be modified and airbox may be removed. OEM Honda twin frame and swingarm (frame per Superbike rules, swingarm must remain stock)Any period body work/fairing
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AHRMAFormula 250Formula 500All major components must be OEM parts or accurate, detailed replicas of the same partsusing the same type materials and technologies. Major components may not be newerthan the cutoff date specified for a class (e.g., no inverted forks in the vintage or VintageSuperbike classes). Composite materials not of the period cannot be used in any form in a vintage machine without prior approval of the Roadrace Rules & E ligibility Committee.The burden of authenticating is on the rider. Press clippings and photos with identifiabledates may be helpful.Efficient front and rear brakes are required. Any drum brakes (front or rear) of the period are permitted. Hydraulically-operated drum brakes areprohibited. Air scoops, if fitted, must have screens and be clear of all working parts. One front rigid-mounted steel disc brake may be used on F-250 machines. Calipers must be period type with a maximum of two pistons. Late-model alloy types are prohibited. Front disc brakes must be of the period; steel, rigid-mounted type; maximum diameter 12 inches. Rear discs are permitted, provided they are period equipment.Roadracing tires must be of modern racing compound only (only DOT-type permitted). No slicks, soft rain tires or hand cut slicks are permitted in vintage classes. Tires must be treaded and not excessively worn. Wheels must be wire spoke type in Classic, Grand Prix and Sportsman categories.Spokes must be in good condition. Formula classes may use period cast wheels. Astralite (stamped) type wheels are prohibited, except in Vintage Superbike. Tire warmers are prohibited on vintage motorcycles with treaded tires. Wheel rim diameter must be at least 18 inches and not exceed WM3 (2.15 inches) front and WM4.5 (2.75 inches) rear.Engines of any type falling into the classes listed may compete. Engines must be naturally aspirated (no turbos). Allowable overbore is a class’s maximum displacement plus the following limits, or the specific machine displacement, as in the performance-indexed classes (such as 200Grand Prix and Classic Sixties 650): Cylinders may be bored to a maximum of .060”, twins. The formula for calculating engine displacement in any class is: Bore x bore x .7854 xstroke x number of cylinders. A 6-oz. minimum catch tank or reservoir must be provided for any breather hosesventing the following: cam box or top end, crankcase, primary, transmission, oiltanks, and radiator or coolant tanks. Such catch tanks must be situated so that they will not normally overflow. All fluid plugs and fittings with oil or coolant behind them must be securely fastenedor safety wired. Hydraulically assisted clutches are prohibited. Kickstarters may not be retained on roadracers.All machines must be equipped with racing exhaust systems; silencers are required on two-strokes and encouraged on others. All machines must be equipped with effective silencers and exhaust systems must include sound attenuation material or devices. Open pipes and reverse cone megaphonesare not effective silencers. See rule 9.3h.All machines must be no-compromise Grand Prix racers (i.e., clip-on or low, narrow handlebars; no lighting equipment or related brackets, except that factory-welded brackets may be retained if desired; no street equipment of any kind, including brackets). Frames shall be free of cracks and kinks. All welds shall be structurally sound.Roadracing motorcycles must have both front and rear suspension. No part of the seat or other parts to the rear may stand more than 37 inches above the ground when the motorcycle is unladen.Unladen motorcycles must be capable of leaning at least 50 degrees to either sidebefore contacting the ground (tires excepted). Frames and swingarms must be made in the same type (tubing style) and manner as original or period. An eligibility request must be submitted for any frame or swingarm redesign or modification. A diagram of an approved tubular reinforced swingarm eligible for Formula and Sportsman machines is shown below. This swingarm was documented as having been constructed by Big D Cycle in 1971.Fairings, if used, must be mounted at no fewer than three points. Fairings must not extend forward of a vertical line drawn through the forward-most part of the front tire. The front wheel must be visible from the side and it must be possible to see the rider completely, in the normal riding position, from either side and from above with the exception of the forearms. No streamlining may be attached to the rider or the helmet. Leathers with “aerohumps” are permitted. Period fairings only. All tanks, whether for fuel, oil or coolant, must be leak-free and securely mounted. Fuel tanks must be fitted with readily accessible shut-off valves in working order. Positive clamping is mandatory on all oil, fuel and coolant line connections. Slip fits are not permitted.
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AHRMA350 Sportsman
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