Originally Posted by
Calder Benson
Is 650b kind of like 4130 but a bit heavier/durable? I looked it up and got a bunch of hits on mtn bikes.
650b is a wheelsize now marketed as "27.5"
Its the new wunder-size, if you believe the marketing
Jamis had the Dragon 650b in Reynolds 853 since waaaay back before the bandwagon started