A
Adam Rush
Guest
Okay, I just got my first coaster brake today: a Sachs Torpedo singespeed hub. I take the sucker
apart and have a look at how it works. There's a big golden collar which expands against the shell
when backpedaled. Okay, mystery solved for today, but it begs the question, why don't these things
eat through the shell in mere months if they operate on this principle? Is there something else
going on here? I assume that the collar is brass and I know the shell is steel. This hub had been on
a bicycle for ~30 years, so it can't be as simple as it seems, right?
apart and have a look at how it works. There's a big golden collar which expands against the shell
when backpedaled. Okay, mystery solved for today, but it begs the question, why don't these things
eat through the shell in mere months if they operate on this principle? Is there something else
going on here? I assume that the collar is brass and I know the shell is steel. This hub had been on
a bicycle for ~30 years, so it can't be as simple as it seems, right?