Magazine for the professional tire industry
Issue link: https://mtd.epubxp.com/i/328077
MTD June 2014 By Ann Neal C ooper Tire & Rubber Co. has intro- duced the CS5 Touring, a premium touring tire line with two all-season tread options. It also has four speed ratings, including the company's frst-ever W rating for a touring tire. Te CS5 is available in 78 sizes in Grand Touring (T-rated) and Ultra Touring (H-, V- and W- rated) tread options. Te CS5 Grand Touring tire has an 80,000- mile tread wear warranty. It is available in 30 sizes, which cover 75% of the market. Speed ratings, tread wear, sizes and market coverage for the CS5 Ultra Touring are: • H-rated — 60,000 miles in 23 sizes with 74% coverage; • V-rated — 60,000 miles in 20 sizes with 78% coverage; and • W-rated — 50,000 miles in fve sizes with 20% coverage. Te company says a new silica tread com- pound signifcantly improves the wet handling performance of the CS5 tires versus the line it replaces, the CS4. Te CS5 is the frst Cooper product to use the new compound, which contains four times more silica than the CS4's compound. In addition to improving wet trac- tion, the extra silica in the tread compound shortens stopping distance and lowers rolling resistance without giving up tread wear. "We targeted wet performance from the be- ginning," says Bruce Sanborn, product segment manager. "It rains almost everywhere we sell products. So we need to be really good in the rain. Tat's when consumers realize tires might not stop in time. Tey lose grip more ofen. Almost everyone can relate to wet performance," Te CS4 also had two tread paterns, but Cooper also used diferent compounds in the two CS5 lines, according to Sanborn. "Te Grand Touring has a compound that is tuned for the consumer set, such as the Dodge minivan customer," says Sanborn. "Te Ultra Touring compound is tuned for, say, a Toyota Camry V-rated, a litle more sporty, a litle more responsive. Te characteristics of the car and driver are dif- ferent so we have two unique compounds between the lines." To boost consumer confdence in the CS5, Cooper added a tread wear indicator called "Wear Square" to the tire. As the tire wears, the shape of the visual wear indicator changes to help consumers approximate remaining tread life. Te indicator also helps dealers begin conversations with customers on the condition of vehicle components, according to Sanborn. "It's not meant to replace an actual tread depth gauge. But it does provide a sense of what's worn out from a component standpoint. Tat's a discussion the tire retailer can have with a consumer." Engineers incorporated Cooper's Sta- biledge technology (introduced on the mid-range CS3 touring tire) and 3D Micro- Gauge Siping (an innovation developed for the Zeon RS3-A UHP tire) into the CS5. Te Stabiledge technology is visible in the tread, giving dealers something to physically show consumers when describing benefts. Under the weight and pressure of driving, tire treads tend to close. However, tiny Stabiledge "bumpers" keep the tread open for beter traction and response in dry conditions. Cooper's siping technology locks the tread elements together to maximize surface contact for beter handling and control. Te sipes run the full-depth of the tire, rather than halfway or variable depths. "Being full depth and locking together means we have 85% more sipes from half- worn down to 2/32nds than traditional tires," says Sanborn. Changes to the overall profle and tread contact patch improve ride quality and help the tire wear evenly and quietly. Te use of lighter and stronger materials in construction reduced weight, which im- proves responsiveness and lowers rolling resistance. Te CS5 also adds a W-rated touring tire to Cooper's line-up. "It's a growing trend by OEs, so we just want to capture those sales," says Sanborn, who cited W- rated ftments on Ford Focus and Buick LaCrosse models as examples. Te tires are produced at the company's Tupelo, Miss., manufacturing plant and are available now. Te CS5 will be priced the same as the CS4, which has been the company's best-selling tire line. "We have cuting edge technology and leading performance all at the traditional Cooper brand price point," says Sanborn. ■ Focus on industry Wet traction versus tread wear Tere is no compromise in the Cooper CS5 Touring tires The CS5 Ultra Touring is H-, V- and W-rated. Cooper says a new silica tread compound improves wet handling performance of the CS5 line versus the CS4 line. Cooper says its siping technol- ogy improves wet and dry handling throughout the life of the CS5 Grand Touring (pic- tured) and Ultra Touring tires. 56