On Fri, 12 Apr 2019 16:07:53 -0700 (PDT), "
wrote:

On Friday, April 12, 2019 at 9:27:51 AM UTC-5, db wrote:
My son is set on getting a belt drive for the bike he
is building. What is good about them? You have to have
the exact length for your bike, and if it breaks, it
is very expensive to replace.

So, why?

--
Dieter Britz

Go over to YouTube and do a search on Gates Belt Drive. A number of videos will appear that talks about bikes with this drive system and usually Rohloff or Pinion gear boxes.

There was a guy at a marina where I kept my boat that had an aluminum
single speed bike with a belt drive. It apparently worked great, he
parked it on the dock next to his boat and it was there for years and
years with no apparent maintenance what so ever. A chain drive would
have been rusted itself into one solid chunk in that period :-)
--
cheers,

John B.