Back in October of 2005, a team from Wagner Racing in Alabama set a new 50cc Altered Gasoline motorcycle record with a modified Cobra competition mini-motocross engine. The average of two runs yielded a new record speed of 69.633 , beating the old record by 5mph.
That's pretty fast for 50cc, but not really astoundingly fast; my '84 Yamaha RX50 will do 60 in stock trim with a light rider. And it's not even close to the unlimited 50cc motorcycle record. That would be 133mph, set in 2007 by the Buddfab Streamliner, breaking a record (121.7 mph) set in 1956 by an NSU team with a supercharged, two-stroke 50cc Wankel that produced 13HP running on fuel. 
The bike is powered by a water cooled 2002 Moto Minarelli 50cc engine with a six-speed transmission, fueled with methanol and nitrous oxide. This engine is more commonly seenin the Aprilia RS50, where it produces something like 8.38HP (6.25Kw) at 10,000RPM in stock trim. Reportedly the modified engine produces close to 20HP.
Word is they think they can get 139MPH out of this bike. Read the team blog here.
Friday, September 14, 2007
50cc Land Speed Records
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10 comments:
I've got one of those RX50s and I can't make it to much over 53mph. And that's with a tow behind someone! I don't qualify as a "light rider" however at 178. Still, it's fun to ride!
in 1981 CASAL (a Portuguese motorcycle factory) special by Huvo (Netherlands)driven by Jan Huberts made 224.557 Km/h - that is 139.533251 miles. This is the world record that FIM recognizes. Regards!
Buddfab has set a new FIM record of 144.966 mph at Bonneville in the past week.
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wots the fastest record for a 50cc running normal fuel ? (when i say normal fuel i mean like standard petrol pump fuel lol)
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If I'm not mistaken, the NSU record was set with a piston-based 2-stroke that was supercharged using a Wankel-design compressor - not an actual Wankel engine.
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