可配合不同需求及場合調整輪組高度，以作為掛在單車後輪之旅行用行李拖車，或手拉行李貨物之拖車。
Suitable for folding/mountain/road/touring bike, and 29er.
Wheel height is fully adjustable; keep in the high position for cycling clearance or lower it for better balancing.
