Biopace chainrings now thats a blast from the past!
I remember buying my first really nice bike from a lbs. with those chainrings. It was a Jamis Exporer XR 18 speed mountainbike. Came stock with toeclips and a neat padded strap that was bolted to the seattube on one end and then bolted to the toptube on the other end, used to help cushion the bike on your shoulder when the riding was too tough to do and had to carry your way out. I then traded that bike for a Centurion Accordo roadbike with more of the biopace chainrings. They were all the rage back in 1988-89
I remember buying my first really nice bike from a lbs. with those chainrings. It was a Jamis Exporer XR 18 speed mountainbike. Came stock with toeclips and a neat padded strap that was bolted to the seattube on one end and then bolted to the toptube on the other end, used to help cushion the bike on your shoulder when the riding was too tough to do and had to carry your way out. I then traded that bike for a Centurion Accordo roadbike with more of the biopace chainrings. They were all the rage back in 1988-89