Moreover, the spacing is not symmetrical because the bars are not symmetrical (to enable the original system to function): result, a bar in front, a back a little bar make the bike is leaning left side ...
In short, I put 2 stars for the originality of the system that I like but that is not the point and makes it unusable for me (rather high bike: btwin 7 in 28 inches cross tires (new original btwin 700)
I really struggled to find a crutch that suits the height of my 28 inches ....