absoluteBLACK Subcompact Premium Oval Chainring ROV48/4BK

- Innovative design allows very small chainring use on 4x110BCD cranks but a SRAM 12sp or Dura Ace 11sp chain is recommended\n- Chainrings are sold separately but must be used in 30+46 and 32+48 combinations\n- Special bolts are included for 30t and 32t inner rings so no additional parts are needed\n- Inner and outer oval chainrings are optimized with smooth shifting in mind, (6) up-shifting ramps (outer ring), and (12) down-shifting points (outer ring)\n- Oval rings help the rider spin smoother and generate more power\n- Example: 32t is equivalent to 30t at dead spot and 34t at the power zone\n- Works with 2x chainring systems and does not require any modification to the front derailleur for use\n- Compatible with crank models: Shimano Dura-Ace 9100, R9120, R9150 & R9170 Di2, Ultegra 8000, R8020, R8050 & 8070 Di2., 105 R7000, R7020, R7070, Dura-Ace 9000 & Di2, Ultegra 6800 & Di2, Shimano 105 5800. Not compatible with Power2max\n- Designed in UK, manufactured in Poland\n- Third party online retailers must be preapproved by manufacturer