Siping (rubber) wear and extends the life of the tire. Both Bridgestone and Michelin sell snow tires that are siped at the factory, while Saf-Tee Siping and Grooving sells machines that can sipe most standard vehicle tires. Siping can also be done by hand. Siping tires may void the manufacturer's warranty. Claims that extended life is achieved by siping may only apply to certain environments, operating temperatures, and rubber compound builds. Siped soles are a characteristic feature of boat shoes. Siping (rubber) Siping is a process of cutting thin slits across a rubber surface to improve traction in wet or icy conditions.
Cheng Shin Rubber Cheng Shin Rubber Cheng Shin Rubber Industry Co. () is the ninth largest tire company in the world. Established in 1967, in Yuanlin City, Changhua County, Taiwan, by Luo Jye. Maxxis is a wholly owned subsidiary of Cheng Shin. Cheng Shin Rubber only produced bicycle tires. As the company grew and extended its reach beyond Asia, it expanded into new market segments, producing full lines of tires for passenger car, bus, truck, light truck, bicycle, motorcycle, ATV, race kart, trailer, industrial and lawn & garden. In 2015 Cheng Shin had worldwide revenue of over $3.85 billion. Operating under the name