Dimension Track Lock Ring

• Left hand thread does the job
  
• Great value
  
• 1.29 inch x 24tpi

Note General Fixed cog check:

for correct fixed use, the fixed cog should NEVER move on the hub when pedal force is applied in both directions. i.e. if the cog moves, then something is wrong. Continued use with a fixed cog that moves will result in damage to the hub

Occasionally, without notice, manufacturers change product design and/or specifications.