V Vetus Ossa Retro Guru Aug 24, 2023 #1 Campagnolo 39t chainring.135mm bcd.Little used and in good condition. £20 + £3.55 postage. Attachments IMG_4708.JPG 329.6 KB · Views: 3 IMG_4707.JPG 362.8 KB · Views: 4 IMG_4706.JPG 433 KB · Views: 3 IMG_4709.JPG 398 KB · Views: 2