On 4/12/2019 7:27 AM, 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?

Note that you need a special frame to be able to use belt drive, with
the right chainstay being able to separate from the right seatstay.

I saw quite a few belt drive bicycles yesterday at the Sea Otter
Classic. Gates also had a booth there.

I can't see why it would be expensive to replace.