Basically, a good article with a bad description. Fits hardly a mountain bike it should be called. Here you have to remember that one, uses such a part generally, for a mountain bike. Modern mountain bikes have a fairly large pipe diameters on the downtube. This part is what. For thin diameter anything for a reasonable MTB The 4 small "holder" are completely on the down tube and scratch this very quickly. However, the down tube should fit in between actually.
Conclusion: For a city bike useful (but who fenders), a mountain bike, this is absolutely a mistake.
Since the product has a low price is the returning inadvisable ... you will pay the shipping costs ... I habs a child on the wheel tinkered ... because the joy was great.