Hub-center steering Online references

21 Апр 2015 | Author: | Комментарии к записи Hub-center steering Online references отключены

Bimota Tesi 1D

Hub-center steering (HCS) is one of different types of front end mechanisms used in motorcycles. steering is characterized by a swingarm extends from the bottom of the to the centre of the front wheel of two forks .

The advantages of using a steering system instead of a conventional motorcycle fork are hub-center steering separates the braking, and suspension functions.

a fork the braking forces are put the suspension, a situation that to the suspension being compressed, up a large amount of suspension which makes dealing bumps and other road extremely difficult. As the forks the steering geometry of the bike changes making the bike nervous, and inversely on acceleration more lazy.

Also, having the steering through the forks causes with stiction. decreasing the of the suspension. The length of the typical fork means that act as large levers about the requiring the forks, the headstock, and the to be very robust adding to the weight.

Hub-center steering use an arm, or arms, on bearings to upward wheel deflection, that there is no stiction, under braking. Braking can be redirected horizontally along arms, or tie rods, away the vertical suspension forces, and can be put to good use to counteract weight

Finally, the arms typically some form of parallelogram maintains steering geometry the full range of wheel allowing agility and consistency of that forks currently get close to attaining. The hub center Achilles heel, however, has steering feel. Complex tend to be involved in the steering and this can lead to slack, or inconsistent handlebar movement its range.

Hub-center steering have only appeared on a few production motorcycles, and not with any success. Evolution, rather revolution, tends to drive in new models, and dictate sales. so many years of telescopic people are used to riding a that handles in a specific and almost expect the limitations, and is part of the experience.

Also there is a depth of known about fork chassis design that each year to get around the through technological advances on the system. Thicker and thicker tubes are used to reduce special coatings are used to aid and greater and greater steering are used to counteract dive.

The steer concept is a very old one as early as 1910 by the British make, and in 1920 by Ner-a-Car. and an aftermarket vogue in the 1970s the work of Jack Difazio in the UK. The Mike Tomkinson (of Mead ), aided by sons Chris and pioneered the use of hub-centre steering in motorcycle endurance racing.

Their first machine, (qv), was powered by a Laverda triple; but they later a Kawasaki-engined bike that known as Nessie II. The Tomkinson’s encouraged Elf in the 1980s to create a of GP race bikes. In the 90’s was a flurry of action, first was the Tesi 1D in 1991 (designed by a Massimo Tamburini of 916 fame) this was expensive and was only produced in small numbers.

in 1993 Yamaha launched the based on James Parker’s design. It raced at the Isle of Man TT but was blighted with a reputation for a bit heavy and clumsy in use. In Michael Tryphonos built a based on the Defazio system did race at the Isle of Man with success reaching 11th in the TT.

Royce Creasey, designer of forwards motorcycles. is an ardent of HCS.

Currently, Bimota Tesi 3D and the Vyrus 984C3 2V and the 4V are the only production motorcycles hub-center steering systems, Italjet also use hub-center on their top of the range scooters. manufacturers occasionally employ steering in their designs, as the GG Duetto. An aftermarket hub center assembly is made by ISR Brakes of

This is an excerpt from the Hub-center steering from the free encyclopedia. A list of is available at Wikipedia.

The article steering at was accessed times in the last 30 days. (as of:

Bimota Tesi 1D
Bimota Tesi 1D
Bimota Tesi 1D

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