IBIS TRANNY

What is tranny bike, anyway? or Ibis tranny, in this case?
according to Ibis or probike
It’s a carbon fiber hardtail.
It’s a geared bike.
It’s a single speed.
It’s a travel bike.
It’s all of the above.

It’s the Ibis Tranny.



Lopes' tranny


The The Ibis Tranny is a strong and lightweight monocoque carbon fiber hardtail. And a lightweight, laterally stiff, vertically compliant one at that. The Tranny goes far beyond being just a hardtail, resulting in some unique features. The features are a result of the removable, adjustable-length, chainstay. This means you can transform it from a single speed to a geared bike to a travel bike in a matter of minutes.



At the section behind the bottom bracket. There's some hidden equipment down there we call the "Slot Machine". It's not really a machine, but it does have a slot that makes it adjustable. That allows us to lengthen the chainstays, so we can make this thing into a bona fide single speed. It's lighter than an eccentric bottom bracket, and cleaner than a chain tensioner. Look at our little animation of the Slot Machine in action. One bolt cinches the whole thing up.
As an added bonus, that same box of magic along with the curious little bolt up along the wishbone allows you to take the whole rear end off of the bike. Two bolts and it's in two pieces. Why would you want to do that? Easier to travel with my friends, and also possible to fly with this thing in a travel case and not pay the exorbitant fees the airlines like to charge us to carry our bikes.