Sram Road Chainring 5 Bolt 130BCD 50T (50-39-30) 4mm
- Road Chainring 5 Bolt SRAM Road 50 teeth 4 mm chainrings are stamped from 7075-T6 aluminium with black hard anodized finish. Power Glide ramps/pins for optimized shifting performance. Number of bolts: 5. 110 mm bolt circle diameter. Low weight & excellent strength made from 7075-T6 aluminium Power Glide ramps/pins for optimized shifting performance Black hard anodized finish