Motology: Yamaha Tesseract Being Developed for Production?

5 мая 2015 | Author: | Комментарии к записи Motology: Yamaha Tesseract Being Developed for Production? отключены
Yamaha Tesseract Concept

Motology: Yamaha Tesseract Being Developed for Production? Hot

Again with the rumors! The Yamaha Tesseract, a four-wheeled motorcycle which leans, was first seen at the 2007 Tokyo Motor Show. The concept garnered significant attention and may have helped Quadro Tecnologie to move forward with development of its three and four wheeled scooters for the European market. Now we hear that patents recently filed on behalf of Yamaha Europe bear an astonishing resemblance to the Tesseract concept…

The Tesseract concept

A motorcycle with four wheels is about the simplest way to explain the Yamaha Tesseract concept. We all know that a limitation of riding motorcycles, at least when it comes to negotiating a corner, is the tiny contact patch holding the bike to the road; it’s about the size of a credit card. The Yamaha Tesseract gets around this by adding two more wheels and tires to the equation, and thus allowing for harder, and faster, turning.

Unlike many four-wheeled motorcycle concepts, the Yamaha Tesseract is designed to lean when it turns. This is thanks to a complex arrangement of spars and control rods; the bike will behave very much like a standard motorcycle – countersteering, shifting your weight for direction changes and, potentially, even lane splitting where legal. The Yamaha Tesseract is a wild ride, no matter what you do with it – even a quick trip to the store – will be enthralling.

The Tesseract patent

The Yamaha official line on the Tesseract during 2007, as it made the rounds at on the show circuit, was that it was a hybrid. The stated engine configuration was to be a V-twin which had been mated to an electric motor in order to provide power to the two rear wheels. However, the patent submitted by Yamaha has the Tesseract design using a parallel twin engine, no electric motor and a dual-shaft drive putting power to the wheels.

The core of the Yamaha Tesseract remains intact – dual rear single-sided swingarms, dual front single-sided swingarms, both of which are connected to a perimeter box-section frame whose spars support the engine and subframe, which itself holds the rider on its back. It would appear, both from the concept and the patent, that each end will have a single shock working as suspension for both swingarms, and up front a set of specialized control arms allow the front two tires to turn and four wheel disc brakes bring the Yamaha Tesseract to a quick halt.

Yamaha Tesseract Concept
Yamaha Tesseract Concept

Tesseract production and sales?

Throughout the history of the motorcycle industry, almost every manufacturer has filed for patents which drive rumor and speculation – what you are reading here is proof of this for the Yamaha Tesseract. However, very few of them ever come to complete fruition exactly as they are described in the official filing; what often happens is that only portions of the various innovations contained in those documents reach the factory floor on a production machine. In fact, the Yamaha Tesseract may simply be the factory’s attempt to make their ideas official for litigious reasons.

For residents in much of the world, even if the Yamaha Tesseract were to be sold as an OEM vehicle, it would not be road legal. Unless a waiver of some sort is obtained, any four-wheeled vehicle on the streets of the United States would be considered an automobile. That means it would need to be crash tested before it could be titled and driven – and the Yamaha Tesseract does not have bumpers, seatbelts or airbags, which are all required under U.S.

DOT rules.

However, the motorcycle industry is changing quite frequently these days much like when it first began, and new vehicle types are emerging all over the world. It is possible that the Tesseract could be classified as a street-legal ATV, or just a motorcycle variant. But, given the strict nature and general sheepishness of our government when it comes to risk (and the fact that Congress can’t even seem to confirm people to empty government offices, much less agree on large issues), the Yamaha Tesseract’s only way of being ridden in America may be the track, and that would be just fine for us riders – sounds like a blast!

Yamaha Tesseract Concept
Yamaha Tesseract Concept
Yamaha Tesseract Concept
Yamaha Tesseract Concept
Yamaha Tesseract Concept
Yamaha Tesseract Concept
Yamaha Tesseract Concept
Yamaha Tesseract Concept
Yamaha Tesseract Concept
Yamaha Tesseract Concept


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