For years, Schwinn was the top U.S brand with as much as 25 percent of the market. Now, it has less than 5 percent of the $2.5 billion annual retail bike market. The new Schwinn will sell about 400,000 redesigned bikes –many of them Asian-made models that sell for $200 to $400 retail, the lower end of the adult bike market. Those models are catching on. But the turnaround won’t be a success unless Schwinn persuades cyclists to fork over $700 or more for its newer bikes. Below are market shares of manufacturers for bikes retail-priced$400 and up