http://www.a-bike.co.uk/store/home.php
http://www.abikecentral.com/blog/?p=89
1. A newly strengthen leyshaft.
2. An improved freewheel assembly.
3. Strengthen alminium tubing.
4. A new air-sprung cushioned saddle.
5. A smoother drive mechanism.
6. An improved sports carry bag.
原本 4.5.6 是 A-bike PLUS 要增加的功能
現在Mark-II A-bike 再加 1.2.3.
不知道值不值的等待?
