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rattleCAD is a parametric 2D computer-aided design (CAD) software specific for bicycle design, [1] [2] in particular for design bicycle frame, [3] [4] developed by the Austrian cyclist and programmer Manfred Rosenberger since 2008. [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.
The first Merlin frame was a mountain bike frame custom-built for the defending National Mountain Bike Champion Joe Murray. [2] In the following year, the company began a strong relationship with frame designer Tom Kellogg, who helped them produce the world's first 3-2.5 titanium alloy road bicycle frame. [2]
Minibike race at Lelystad (NL) Ivar training at Wilrijk (B) Jerowe at the Sutton track in Ontario, Canada Pocketbikes are small, two wheeled recreational vehicles approximately one-quarter the size of a regular motorcycles, and are powered by two-stroke internal combustion engines of between 40 and 50 cc. Pocketbikes maintain the look of full-sized sport bikes and are known outside of North ...
Despite the fact that lugged steel frames are no longer mass-produced, frames are still available. There is a trade of used bicycles in North America, especially in large cities and college towns. Because of their durable construction, many lugged steel frames from the 1980s, 1970s, and earlier remain in usable condition.
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A steel hardtail mountain bike frame produced by Rocky Mountain Bicycles. A bicycle frame is the main component of a bicycle, onto which wheels and other components are fitted. The modern and most common frame design for an upright bicycle is based on the safety bicycle, and consists of two triangles: a main triangle and a paired rear triangle
Klein was a bicycle company founded by Gary Klein that pioneered the use of large diameter aluminium alloy tubes for greater stiffness and lower weight.. Klein produced his first bicycle frames while a student at the Massachusetts Institute of Technology during the 1970s, and full production runs of frames began in the 1980s.