Campagnolo, FC-CO050, Chainring, Teeth: 50, Speed: 11, BCD: 110, Bolts: 5, Outer, Aluminum, Grey FREE shipping within United States over $50.00 Buy Online or Click & Collect Share Loading Facebook Like button... Campagnolo, FC-CO050, Chainring, Teeth: 50, Speed: 11, BCD: 110, Bolts: 5, Outer, Aluminum, Grey FREE shipping within United States over $50.00 Buy Online or Click & Collect Share Loading Facebook Like button...