Are R888R Tyres road legal?
The Proxes R888R has a semi race construction (very stiff) and a race tread compound. The optimum tread temperature range is between 71C and 105C measured using a probe type pyrometer, and ideally a maximum difference across the tread of 15C. The maximum hot pressure we recommend is 40psi.The credit goes to its tread design and an improved contact patch that puts more rubber on the track. Racers will also appreciate the predictable handling and how quickly the Proxes R888R reaches optimal operating temperature.This optimized contact patch improves braking as well as acceleration and cornering in dry conditions. A favorable characteristic for road racing, the Proxes R888R quickly reaches an ideal operating temperature due to its high grip compound.Its redesigned, asymmetrical tread pattern utilizes large tread blocks on the outside for better cornering and a water evacuation channel to help maintain grip in damp conditions. Carrying a 100 AA A UTQG rating, the R888R intends to build heat quickly for maximum adhesion to the road surface.
Are semi-slick tyres illegal?
Street-Legal: Unlike full slick race tyres, semi-slicks are are grooved tyres that are designed to meet road regulations. Great for Track Days: Many car enthusiasts use semi-slicks for a mix of track motor racing and street driving – especially because it means you don’t have to change tyres. By eliminating any grooves cut into the tread, such tyres provide the largest possible contact patch to the road, and maximize dry traction for any given tyre dimension. Slick tyres are used on race tracks and in road racing, where acceleration, steering and braking require maximum traction from each wheel.
Are slick tires street legal?
To be “street legal” a tire is required to meet certain tread specifications. Race tires/slicks do not generally meet those specifications, but overly worn street tires could fail to meet the specs and become illegal. It’s important to note however, that not all semi-slick tyres are road legal. Protoura Race is certified for road use under the Motor Sports Association (MSA) List 1B. Whereas the MSA List 1C details semi-slicks that are for competition use only, not for road use.
What are the disadvantages of slick tires?
The greater the tire surface area that touches the road, the better the tire’s grip. However, the smoothness of slicks becomes a liability on wet road surfaces, such as when it rains or snow. Grooves direct water from under the tires, preventing hydroplaning that can reduce tire traction. The smooth surface minimizes friction between the tire and the road, translating to higher speeds and less effort required to maintain those speeds. Slick tires offer a more aerodynamic profile compared to their treaded counterparts, helping to reduce air drag and further enhancing speed and efficiency.Lowering tire pressure makes tires soft and pliable, so they can conform to the shape of the rocks, improving traction and even helping to smooth out what can be an extremely rough ride.
How long do street slicks last?
General rule for rubber is 5 years, but with the application, that may be pushing it. And the faster the car, the less I would trust an older tire. Personally I don’t like to see more than about 18 months. Essentially, no it is not safe to drive on dry rotted tires. Yes, there are degrees to the severity of the dry rot, but severely cracked sidewalls, inflexible tread, and rubber that may fall apart at any moment can be unsafe.All tires that are 5-6+ years old are at risk for dry rot, but it may happen sooner or could happen a little later. Click here to learn more about dry rot. Age – Always replace tires once they are 10 years old, regardless of how they look or how much they’ve been used.