Originally Posted by Duragrouch

I'm new to this thread, have viewed some but not all. Nice build!

V1llage, sounds like you are in the Seattle area.

I have a Dahon Speed 20" outfit with 50/34 x 11-30, 21-85 gear inches on 1.75" section height I think. For me, the 85 is just tall enough, the 21 is mostly short enough. A local who has toured all over the world on his bike friday desires lower for the steeps, 15, but that slow, not sure if I would climb out of the saddle, or just walk it up (a nice change of pace, different muscles). I'd be interested in your gear range and if you use it all. So far, I've been very glad to have avoided an IGH, the double crank is simpler and I can do all maintenance. But 5 middle gears are duplicates.

I envy your more compact fold, I don't fold often, but for travel, yours' should be much superior, though it still requires a suitcase which would need to be stashed at the destination; Those who have been able to bring 16" Bromptons in a soft bag onboard as carry, that really appeals to me, versus careless baggage handlers, but that size has drawbacks for full pannier touring. I envy your disc brakes, both for better stopping, and not heating up the rims on long twisty downhills, nor eating the rim sidewalls.

I met someone who has a Burke 20" but was not riding it at the time. He liked my gearing setup better, he said his 1X external gearing had the derailleur nearly dragging on the ground.

Aaron's bike repair in White Center (a local IGH specialist) has stated on his website that he is against carbon fiber for anything except actual competing racers, due to fragility, and poor failure mode (as we engineers say, "non-graceful degradation mode) with shards, etc, and I've come to agree. You mentioned carbon early on as a possibility but looks like you have avoided. Titanium is great stuff.

Again, great build, keep us posted. Thanks.