What are boost cranks ?

rowdyflat

chez le médecin
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

Definitely should have gone to specsavers
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!
 
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