- Designed specifically for APEX 1 cranks that feature asymmetric 110/4bcd bolt pattern - 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 and is specifically designed to handle mud and grass with ease - Works with 1x9/10/11sp, 12 sp Eagle or Singlespeed setups - Designed in UK, manufactured in Poland.