FSA Pro Road Chainring, 130BCD x 39T Double Black

CNC 7075 aluminum with ramps and stainless pins. Aluminum inners. 135mm BCD rings fit Campagnolo non-Record cranks. Features: Ti anodized finish Mfg# WB085-39T CNC Machined AL7075/T6 Laser-etched logos Some are designed to work in specific tooth combinations; parentheses indicate appropriate mating ring Shifting ramps and Stainless steel pins on middle and outer rings S10 is compatible with Shimano, SRAM and Campagnolo Ultra Narrow 10-Speed S9/C10 is compatible with Shimano 9 speed and Campagnolo C10 10-Speed 130 BCD 39 Tooth

Bolt Pattern: 5-Bolt Chain Compatibility: 9-Speed,Campagnolo 10 Chainring BCD: 130mm Chainring BCD: 130mm Chainring Speeds: 10sp Chainring Speeds: 9/10sp Chainrings Material: 7075-T6 Aluminum Component Color: Black Position: Inner Tooth: 39t double