送交者: HunHunSheng 于 2006-5-30, 07:37:24:

回答: 几乎所有都是。虽说理论上可以选择任何姿势。 由 sheepman 于 2006-5-30, 00:59:15:

I use stationary bike as an indoor exercise. Outdoor cycling is not that convenient or safe and cost too much.

• 请参考我最欣赏的自行车网站 - sheepman (23 bytes) 2006-5-30, 19:22:50

加跟贴