Rule book pro stock motorcycle

This is general information only and you should always refer to the current official nhra rule book. Riders shift the bike through the use of a pneumatic air shifter, which is activated by a button mounted to the handle bars. A pro stock motorcycle transmission is integrated into the engine and features six forward speeds. The top fuel, funny car, pro stock, and pro stock motorcycle classes share top billing in the sports nhra mello yello drag. Up to 636cc stock displacement multi cylinder, four stroke motorcycles. The nhra technical department is increasing the minimum weight of the harleydavidson, victory, erik buell racing and buell motorcycles from 625 pounds to 640 pounds. The 2020 nhra rulebook is now online and viewable by all who wish to compete in the nhra arena. The first points championship season was the 1987 nhra season. Pro stock motorcycle is the twowheel category in the nhra. General regulations auto start street et pro et true et dirty thirty street fighter quick street crazy 8s super comp top gas pro ultra 4. Competitors rely on spec racing gasoline to produce elapsed times of less than seven seconds at speeds in excess of 200 mph. More detailed specs can be found by clicking on the rulebook section on this site. Fuel tank must appear stock but construction material is unrestricted may.

Created to legitimize illicit street racing, pro street is reserved for stockappearing motorcycles with unlimited engine modifications. Pro stock is a class of drag racing featuring factory hot rods. To get a close look at these machines and the people who race them, visit one of the nhra mello yello drag racing series events listed on page v or on. Created to legitimize illicit street racing, pro street is reserved for stock. The quickest pro stock motorcycles produce more than 370horsepower. The committee chair or hisher nominee will be the moderator of the rule book subforum for the term of the committee. For the purpose of this rule book the term participant shall include officials. It has been a feature of nhra drag racing since the 1980s when it was added to the professional class structure and has since spread around the globe. After the season opener at the 50th amalie motor oil gatornationals in gainesville, florida. Refer to the current nhra rulebook or nhra rule amendments for. Nhdro is the midwests largest motorcycle drag racing series. Pro stock motorcycle is the twowheel category in the nhra mello yello drag.

All cars must meet nhra rules and pass technical inspection. Pro street ps formerly street bike shootout, this class is for street legal motorcycles with any engine. New billet 4valve cylinder head approved for suzuki nhra. Pro stock motorcycle is the twowheel category in the nhra mello yello drag racing series. New billet 4valve cylinder head approved for suzuki nhra pro stock motorcycle competition october 9, 2019 anne proffit drag racing, news, nhra, racing 0 even as the few riders in nhras mello yello drag racing series pro stock motorcycle class have used an outdated suzuki engine case from the late 1970s, suzuki hasnt shown much interest in supporting the class over the past few years. All bikes must be street legal and be powered by selfstarting motorcycle engines. Competitors in pro stock motorcycle have a choice of two drastically different powerplants, both of which are capable of 6. Here you can view the ihra rulebook, order a physical copy and check out all of the latest competition updates. The class is often described as all motor, due to the cars not using any form of forced induction such as turbocharging or supercharging, or other enhancements, like nitrous oxide, along with regulations governing the modifications allowed to the engines and the types of bodies used. Pro stock motorcycle, formerly known as pro stock bike, is a motorcycle drag racing class that is the twowheeled equivalent of pro stock. Basic nhra safety rules all cars must meet nhra rules and pass. Inthe proandsemisprocategories,lanechoiceisdeterminedbyelapsed times.