just bumping this since the 2013 event is this weekend. Anyone going?
I may come on sunday. I can't race, rules are against us without a centrifugal clutch, but I just may build something for the vintage class next year. I don't see myself as being competitive in the moped class if I were to throw a centrifugal clutch on my bike, which I considered.
Really, I'd be extremely excited if we could find enough of us to make our own class for motorized bikes, and if there is enough interest I'd be willing to help however I can to make it happen. as of now I only see about 85 entries for the total of all classes together. If we could come up with 10 people, I bet we would be a crowd pleaser.
info from
http://thunderdrome.com/ :
Race Classes: The nine classes are as follows:
Motard Class: The fastest, most ridiculous class we run. Momma told us not to play with dirt bikes, but did we listen? The displacement limit is 125CC for four-stroke and 90CC for two-stroke. Modifications are allowed but you must run a stock (not gutted) muffler or exhaust pipe. No nitrous, turbochargers or superchargers, you nut. Also, no motorcycles are allowed. This is only for pit bikes and mini-motards.
Minibike Class: Minibikes – commonly referred to as monkey bikes – are the conveyances of weirdos and DUI awardees. These bikes CANNOT have any sort of suspension. They must be powered by a vertical stroke, horizontal shaft single cylinder 6.5HP or 250CC (whichever comes first) Briggs and Stratton-style motor or smaller. They must have at least a rear brake or clutch brake.
Moped Class: Mopeds are, for all intents and purposes, the defining vehicle of outcasts, trailing a thick blue pall of smoke and buzzing. Mopeds, for our purposes, are small motorized vehicles that either used to have pedals or could be factory optioned for pedals and are “straddle” design similar to a Tomos Targa or Honda Hobbit as opposed to a “step-through” design as with a scooter. For this class, engine size is not to exceed 85cc in two-stroke or four-stroke.
All Moped Class racers CANNOT have a clutch or gear shifter – no exceptions. Single or dual variators are fine as long as they operate automatically. Modifications are wide open except for forced induction or nitrous.
Scooter Class: Toilets, the lot of them. The scooter rules are identical to the Moped Class rules except these vehicles must be the “step-through” variety similar to a Honda Elite or Yamaha Zuma.
Go-Kart Class: The ultimate crowd pleaser and kidney shaker. These karts must be powered by the same vertical stroke, horizontal shaft single cylinder 6.5HP or 250CC (whichever comes first) Briggs and Stratton-style motor or smaller. They must have a simple can-style muffler that is functional (read: not gutted). Roll cages, push bars and gun racks must be removed.
Vintage Class: New things are stupid and these lads are happy to prove it. This class is for all pre-1982 mopeds and scooters. The catch is they must be as stock as the day they were born. The engine size limit is a strict 90cc two-stroke or four-stroke. Clutches, gears and variators are okay. If any aftermarket or replacement parts are on the vehicle, they must not contribute to making it any faster (Example: Seats are okay. Carbs and exhaust pipes are not.) No motocross, supercross or trials bikes allowed. We’ll be going over your vehicle with a fine-toothed comb and a surly old mechanic who knows everything, so don’t screw with us.
Fixed Gear Bicycle: Modern culture meets Darwinian desires. Fixed gear bicycles have a fixed rear hub and therefore are unable to coast with the pedals stationary. Suspensions are not allowed. Brakes are allowed due to the condition of the track; if you have some thick tires to put on, do it.
Mountain Bike: You had one, I had one, we all started on mountain bikes. This class actually leaves the track briefly in an exciting course change-up. Suspensions are allowed Racing will be in Devil Takes the Hindmost-style format like the other bicycle classes.
Multi-speed Bike: Dig out that Schwinn Varsity and hop on. This class is the catch-all for all road-going bicycles that have multiple speeds. Suspensions are allowed. Tandems are allowed but both seats must be operated by registered racers.
