Has anyone ridden real mountain biking trails with the bionx systems? I am an experienced Mnt. biker, female 40sih- but have developed a muscle disease that is robbing me of my quad strength and am finding it harder and harder to ride up the single track mountain bike trials that I love- mostly cross country but with some steep rocky sections. I am looking at the 250 lite system - to keep it lite and because the 350 doesn't fit on my Santa Cruz super lite men's small frame.
I haven't been able to get any feed back from fellow bikers on the ability of the bionx system and off road biking- any input is greatly appreciated.