Harris GP2 Motorcycle

The latest Harris GP2 chassis is the culmination of over 40 years of Harris designing, developing and building race chassis, and preparing race bikes for all classes of road and closed circuit racing from Club through to Grand Prix and World Superbike.

Harris GP2

Whilst some aspects of the latest GP2 chassis are a derivative of our previous Moto2 chassis, the 2020 bike offered is a new concept, using a combination of new and established design and fabrication features. The brief was to build a chassis that is aesthetically current, performed well, but also with the race technician in mind, accessible and easy to work on.

This chassis has been designed to give full adjustability, and has been built light enough to be competitive but strong enough to be rebuilt in the event of an episode.

Materials use in the construction are all aircraft specification, the trellis aspect of the frame is T45 high tensile steel tube, with fully mitred joints, Manganese bronze welded to ensure strength with the required flex without compromising joint integrity. The CNC machined structural parts, brackets and fittings are aluminium, all fasteners are Gr5 Titanium, apart from the special High Tensile dowel pin arrangement adopted for the frame assembly.

The aluminium parts are supplied surface finish as machined/fabricated, whilst the tubular T45 structure is supplied bare or painted to customer requirement.

The oval head stock gives provision for multi fore and aft adjustment without taking up valuable space around the headstock area, various offset inserts are available to give different rake and trail adjustment to the front fork assembly.

The swing arm pivot, rear suspension linkage, flex characteristic of the swing arm and the wheel base of the chassis are all adjustable. Optimum set up from circuit to circuit is attainable.

The relationship between Yamaha and Harris goes back decades, Harris were one of only 2 chassis manufacturers worldwide to be given licence by Yamaha Motor Company, Japan, to develop, build and sell customer bikes using the legendary YZR500 engine for Grand Prix, with engines , spares and ancillaries supplied for the Harris chassis direct from YMC, Japan. Because of our history, and the strong performance and reputation of the Yamaha R6, and as so many race teams currently use and are conversant with the Yamaha engine and ancillaries, and have experience with the Yamaha and established spares inventory, Harris elected to use this power unit for the current bike.

The chassis is now developed and Harris look forward to supplying customer chassis for BSB and other “open” class racing. The bodywork fitted to the bike during testing has been temporary, Harris have been working with aerodynamicists to develop 2020 bodywork, this has been done taking into account current GP trends and styling and aerodynamic slip.

The Harris GP2 R6 development bike has been equipped with established high-end bolt on chassis component parts, Brembo brakes, Ohlins suspension, PVM lightweight aluminium wheels, YEC kit ECU and wiring loom, AIM dash and data collection, HEL brake plumbing, Super B battery, Harris multi adjustable yokes and Ti fasteners. However, we offer flexibility, we are happy to discuss any specification to suit customer requirement, from what we consider to be a basic frame kit: – Frame, swing arm, aluminium fuel cell and for the customer to use donor components to complete the build, through to a full on rolling chassis, or anything between. All parts are available individually, and going forward will be available from stock.

If building a GP2 race bike is part of your race plan now or in the future, please don’t hesitate to contact us to discuss your project and the product and service we offer.

Harris GP2 swing armHarris GP2 fuel cap

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