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Thumpstar was the first pit bike company to manufacture bikes with an alloy frame. The model Pro Hunge 25 which used the alloy frame was one of Thumpstar's most popular models, as it was lightweight and performed well. This model can be found in countries around the world. [5]
These bikes typically have simple, boxy tube frames, small wheels, and are often built with some parts repurposed from Go-Karts, dirt bikes, or gas-powered tools. Bikes built this way can range from underpowered machines running on lawnmower motors up to extremely powerful ones capable of speeds up to 100 miles per hour.
A pit bike is a small motorcycle, used primarily for recreational purposes, stunt riding and motocross racing.Pit bikes are characterised by small, air-cooled engines, and are rarely used for professional racing, instead being intended for use in the pit lanes of racing events.
Introduced in 1979, the twin-shock Honda XR 500 was the first "XR" model. The engine was a four-stroke, four-valve OHC, 497 cc (30.3 cu in) "Pentroof" engine. The bike had a conventional 18" rear wheel but an unusual 23" front wheel which was supposed to be better for riding over potholes and ruts.
A Base 50 engine is a generic term for engines that are reverse-engineered from the Honda 49 cc (3.0 cu in) air-cooled four-stroke single cylinder engine. Honda first offered these engines in 1958, on their Honda Super Cub 50. Honda has offered variations of this engine continuously, in sizes up to 124 cc (7.6 cu in), since its introduction.
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As for the later Model B, except with a larger frame, a 5 horsepower (3.7 kW) engine, and an arch design above the clutch mount. The first digit in each model number is typically the horsepower of that particular model; for example, Model 600 has six (6) horsepower. 303 "Collegiate": Street- and trail-based college campus bike. This model had ...