If you’re stuck with one the 76 BCD SRAM or Specialized cranks with a fixed spider I think the only option for you is a Rotor Q-ring. The good news is they come in sizes right down to 28t and the quality is high. The bad news is they are expensive for alloy rings.
If your spider is removable then there’s a plethora of options for SRAM 3-bolt mounts.
Jan. 11, 2018, 5:02 p.m. - Andrew Major
If you’re stuck with one the 76 BCD SRAM or Specialized cranks with a fixed spider I think the only option for you is a Rotor Q-ring. The good news is they come in sizes right down to 28t and the quality is high. The bad news is they are expensive for alloy rings. If your spider is removable then there’s a plethora of options for SRAM 3-bolt mounts.