absoluteBLACK Premium oval road chainring, 5x110BCD 52T - black Tools Other 121771-Q0-L

121771-Q0-L

- Grade 5 ceramic (Silicon Nitride: Si3N4) balls with graphite-polyamide retainers

EG2310 HT5326 32473

ET6317 SM3954

- TLR-1 is blue medium strength

absoluteBLACK Premium oval road chainring, 5x110BCD 52T - black Tools Other 121771-Q0-LInner and outer oval chainrings are optimized with smooth shifting in mind Features smooth angled surfaces, (6) up shifting ramps (outer ring), and (12) dow shifting points (outer ring) Oval rings help the rider spin smoother and generate more power Example: 32t is equivalent to 30t at deadspot and 34t at the power zone Works with 2x chainring systems and do not require any modification to the front derailleur for use Compatibility: Shimano Dura Ace