[Superdeft]

I just bought a Yeti 575 and went with a single ring E13 36 tooth, a little tall for Sedona, AZ, but should be perfect for Flag. Don't need a front Derailer.

I'm also running an STS with 36T up front, one ring's all you need.

 

[Kntr]

Anyone run a 22/38 and hows it shift?

 

[dw]

Anyone run a 22/38 and hows it shift?

so-so, 22-36 is pretty nice

 

[MikeD]

Dave,

If that is the case, thats awesome, but I'm pretty sure my boomerang is signifigantly different than the current model. The new ones have two bolts for the carrier and roller, while mine only has the roller.
I attached a photo, hope this helps narrow it down.

Noah

From the pic, that looks an awful lot like the Heim 3-guide arm with a stepped roller mounted somehow. Heim wouldn't have any semblance of an e-type mount, though...