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Trail decreases as head angle increases (becomes steeper), as fork offset increases, or as wheel diameter decreases. Motorcyclists tend to speak of trail in relation to rake angle. The larger the rake angle, the larger the trail. Note that, on a bicycle, as rake angle increases, head angle decreases. Trail can vary as the bike leans or steers.
Caster angle and trail both influence the steering, albeit in different ways: caster tends to add damping, while trail adds "feel" and returnability. The caster wheel on shopping carts are an extreme case – the system is undamped but stable, as the wheel oscillates around the "correct" path. The construction has relatively high trail, but no ...
A chopper is a type of custom motorcycle which emerged in the US state of California in the late 1950s. A chopper employs modified steering angles and lengthened forks for a stretched-out appearance. They can be built from an original motorcycle which is modified ("chopped") or built from scratch.
A Triumph Sprint ST on a chassis dynamometer Suzuki Hayabusa at Bonneville Speed Week.. Motorcycle testing and measurement includes a range of more than two dozen statistics giving the specifications of the motorcycle, and the actual performance, expressed by such things as the output of the engine, and the top speed or acceleration of the motorcycle.
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The Fury's design went beyond the domain of traditional Honda cruisers and onto full-out chopper turf, having austere bodywork on a faux-hardtail frame with a high-mounted steering head and long fork tubes that made the rake angle conspicuous at 38 degrees, The caster angle being 32 degrees with 6 degrees added into the steering yokes, [30] A ...
[95] [96] A wheelbase stretched to 1,655 millimetres (65.2 in), a rake angle of 34°30' [97] along with noticeable triple-tree offset [95] gave prominence to bare forks and a 21 inch front wheel (a first for Honda cruisers). [98] The chopper look was reinforced by a two-into-two exhaust system and a seat height reduced to 650 millimetres (25.6 in).
The new Valkyrie has increased rake and trail, front and rear suspension revised for the reduced weight, 50/50 weight distribution and large tires after the fashion of sport-bikes. [7] The Valkyrie's horsepower-to-weight ratio puts it in the muscle bike class according to some reviewers. [8]