Asymmetrical 4-bolt 110BCD oval chainrings are designed for Shimano Dura-Ace 9000, Ultegra 6800, Shimano 5800 and other cranks with an asymmetric 4-bolt 110BCD
- 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
- Narrow wide tooth profile keeps the chain snug, allowing you to leave the chain guide behind
- Works with 1x9/10/11sp or Singlespeed setups
- Designed in UK, manufactured in Poland