after the request I've done few days ago, I've directly contact the Company that produce the system I was looking for. They have been very friendly and has permit me to make a free test of the crank that They have set on my bike. Initially, the mouvement look to be not so balanced because, even if it's perfectly round, the longer lever make Your foot go down more easily. But after few Km ( I didn't feel it after 10 ) You think to use Your old one but, if You look at the gear, it has 2 or even 3 teeth less !!! This morning I've use the system for the 5th time and I LOVE IT !!!!
