M Mark65 Retro Guru Jun 24, 2010 #1 Biopace chainrings probably early 1990`s maybe 38 and 48 tooth in very good condition, can email high res images to any one intrested. £25 posted but sensible offers considered. Thnx Mark Attachments IMG_2148 (Medium).JPG 204.4 KB · Views: 1,265
Biopace chainrings probably early 1990`s maybe 38 and 48 tooth in very good condition, can email high res images to any one intrested. £25 posted but sensible offers considered. Thnx Mark
