What are boost cranks ?

[rowdyflat]

Nambra I knew what you meant even though it was arse about.
So my conclusion from this thread is that boost cranks are just about hot air?

 

[Nambra]

You said it Doc. As long as your gears change ok, your chainring doesn’t saw through your chainstay and the chain doesn’t eat your tyre, you can run whatever cranks you like!