This Diamond Back tire is constructed using the Toyo Extensa A/S tire.
The Diamond Back II is speed rated and designed to run at higher air pressure. When air pressure is increased, it will decrease sidewall flex. If proper pressure is not maintained, white wall edges can be damaged. When running wider whitewall tires, it is very important to maintain higher air pressure. Tires that carry more pressure perform better, have a quicker steering response and have better heat dissipation and less rolling resistance.
The classic car hobby is growing at a rapid pace. With the variety of parts available to the consumer, cars are approaching a state of drivability that was not possible in the past. Diamond Back saw the future of this market as more demanding, more driving, more group tours and again, with the proliferation of parts available, today's classic cars can be turned into serious driving machines. What we don't see is a classic tire market that is keeping pace with market demands. Products available today are the same products that were available years ago. Diamond Back are moving forward with technology and innovation. Diamond Back have built a reputation on offering a product for people that expect superior ride quality.