Campagnolo Potenza Centaur 11 Speed 39t Chainring w Screws Silver/Black FC-PO139S/PO139B

Campagnolo FC-PO139S/B Potenza / Centaur 11 Speed 4-Arm Chainring In Silver and black 39T
Genuine Campagnolo spare part 

Compatible with Potenza and Centaur 11 speed chainsets 

4-Arm 

Size 39T  - (53T) 

112mm BCD

Campagnolo code:  FC-PO139S/B