I was looking to replace some 110 BCD chainrings on an older Deore triple crank. I can almost buy a complete crank for what I've seen for sale. Anyone know of a reasonable source of chainrings. The inner isn't really worn much. The 36 and 48 are in need of replacement.
Second question, if the cranks originally came with the infamous Biopace do I need to replace all 3 chainrings or just the middle and outer?