I confirm that the cord does not leave an impression of enormous strength. I have nevertheless left as is because we can not change the diameter as you wish. If the pulley would increase significantly, the hole in the "brake" is limited to a few millimeters ... I think, however, that I must exchange.
Concerning the "anchors the handlebars and saddle. OK to the handlebars is convenient but for the saddle, no, it's unsuitable for B-Twin. I took yesterday in the amount 2 times the rear wheel in the head and once in the derailleur, ouch!
So for a bicycle, for now, I have used one of the two rear brackets. For another, I removed the seat of accessories to put the two hooks and the third, I added a line between the hook and the saddle to attach the two. short, very tinkered.
Concerning the mounting kit, it seems solid. Only screws are provided and each other, they could have a effort.Une poor quality, solid frankly not screw head is ruined about half that I climb. Well, no pin 8 but delivered so much better, I dare not imagine what we would have given :-)
And so the doc only in German and personal, I have not found a doc on the internet. With both drawings, inspired and we get to install them.
Apart from that, now that it is mounted and I know I'll think of a mechanism to secure the seat and replace the cord ... so why I put 3 and not 1? Well, because in the end, I am happy with my purchase, the brake for the cord is very convenient, the overall mechanism is well thought out.
So if you want a complete solution that requires only 12 holes groin, go your way, if you agree to rack your brains, do some more tinkering, it's a good solution to the bike the ceiling!
Good races