After playing around with full fat and a 29+ front wheel on my Gryphon I was pretty sold on the 29+ format. I had a ride on a Krampus and went through a few iterations of drawings. I'd formed some pretty clear ideas about what I thought would work in a full 29+ format and it was time to turn them in to metal. So the order went in for a few protos from my friends in Taiwan and the frames and forks turned up yesterday. Sadly I'm not expecting my order of Dually rims to come in until next week so for the moment we are running on a P35 front and Flow rear. Set up SS for the mean time but will also be trying it with gears soon (it has a replaceable derailleur hanger not pictured here) - it looks like a full 3x10 drivetrain should work.
Tapered external cup headtube and tapered steerer - this is the same as is on the Puffin full fat frames as well.
Tyre clearance shot and also put a front derailleur on with direct mount adapter - loads of room! A triple should even be possible. Obviously a wider rim will push things out a bit but I think there will still be lots of space.
Bolt on cable guides, there is a triple version for geared use as well. Again, these are the same for the Puffins as well as the new Swifts and Gryphons.
And the whole thing, it's a bit of a hodge podge of bits but that's how it tends to go with my protos - just grab what's in the shed!
The critical numbers are 445mm chainstays, 70mm bb drop, (both +/- 6mm thanks to the eccentric), 70deg HA and 55mm fork rake. Other dimensions are broadly similar to the Swift, final sizing TBD.
This will probably be my next Kickstarter project, stay tuned for more details. Any and all feedback gratefully received.