Campagnolo CT/Compact Inner Chainring-10-Speed and 11-Speed

Campagnolo CT/Compact Inner Chainrings Campagnolo's Compact chainrings use a proprietary BCD (bolt circle diameter) and will not fit other 110mm BCD cranksets 10-Speed Chainring - 34t, Black Use with 50t outer Tooth Count: 34 Material: Aluminum Ring Posit