5 THINGS YOU NEED TO KNOW
For our Roadtec tyres, the patented design utilises a radial carcass and a single layer belt of steel cord. If you think of the rolling direction of the tyre, the belt is wound circumferentially giving an angle of almost 0°. This allows us to tune the winding spacing to allow varying stiffness levels from shoulder to crown.
The profile of the Roadtec is unique. The curvature has been designed to increase the width of the contact patch. As well as doing wonders for rear grip, a wider contact patch actually gives more mileage as it shares the driving forces over a larger surface area.
We refer to this as chemical grip. The Roadtec has a dual-compound rear made from 100% silica at the shoulders; silica is the secret to amazing grip in the wet or on poor surfaces, but it lacks longevity which is why the middle strip of the tyre has a different compound. The front is made of a single, 100% silica compound.
4 Tread pattern
The tread pattern works in conjunction with the carcass and compound of the tyre to give wet grip. A sport-touring tyre’s tread should displace water at all speed ranges, and is focused to fling it from the middle to the outside edge of the tyre. We can maximise a pattern’s ability to do this by increasing the stiffness of the tread blocks.
5 Testing tyres
We have a full-time test team, including riders, technicians and fitters. Tyres are tested on a range of bikes, different weights, operating loads and in various ambient temperatures and conditions. Testing takes place both on closed circuits and roads. We probably cover half-a-million miles from start to finish.
The carcass must work with both tread and compound The profile design gives both better grip and longer life Silica is the key to wet grip The groove and block pattern is key to shifting water