Does anyone have any experience with Oyama bikes? I'm in the market for another folding bike, and I came across Oyamas at good prices. I'm not all that keen on Dahons. I had one unsatisfactory experience, and since then have read about many problems with their frames cracking. Another option is a Giant Halway 1.http://www.giant-bicycles.com/en-gb/....1/7851/45477/