DIY Bicycle Chain Whip

Not a whipping weapon ok, it’s a tool to tighten or loosen  threaded sprockets, or to keep a freehub body from turning while we loosen the lock ring.
  

I use a flat bar, a little too short though. Ideal length should be ~300mm (12inches), longer for better force leverage. 

 

  Oops …. chain whip direction, nvm :)