Have had this bike in my head for awhile. It's not technically a fg/ss but I think it's closer to that than anything else. What I'm really doing is trying to create a very modern version of the old 3 speed club bicycles. Anyway, light weight is a big factor. I don't mind spending more for a decent drop in weight, but I'm not at the spend $1,000 to save 10 grams phase yet. Right now I'm sitting at about 13.5 lbs and I think the only thing I haven't counted is the chainring bolts. Any suggestions? I'm really torn on the frame, but I haven't found anything that weighs less for anywhere near that price, and I'd be willing to spend up to $1,000 for a bling frame that was significantly lighter.

I hope the formatting comes out right. Prices are what I found around the net, weights I investigated best I could.
Wt. Price
Frame: Leader 720tr 1362 150
Fork: 352 150
Headset: Cane Creek 71 39
Cranks: Answer SX Aluminum 3-pc Cranks 356 160
Bottom Bracket: SINZ Titanium Euro Square 171 80
Chainring: Sugino 55 40
Stem: Syntace F99 106 60
Handlebars: Vision Tech Base 250 80
Saddle: 140
Seatpost: 150
Fr Rim: Velocity Aerohead 421 57
Rr Rim: Velocity Aerohead 421 57
Fr Hub: Phil Wood Track 225 140
Rr Hub: Shimano Nexus Inter-3 1120 70
Spokes: DT Swiss 400 68
Tires: 400
Tubes: 140

6140 1100?

It's a bit spendy, but it's light. via Geekologie: https://www.geekologie.com/2008/01/wo...bike_frame.php

I don't even want to ask what that cost

A 3-speed hub on a leader bike, I love it. I think internal gear hubs are wicked, my winter bike has been awesome with one. one consideration is Strumey hubs are marginally lighter, And can be had with out a coaster brake, personally i think a coaster brake leader bike a bit silly, but its your build do what you like, lastly i like to avoid shimano if i can

The reason I chose the Shimano is from what I have seen, it is a better internal design. The Sturmey's may suddenly shift into neutral in high gear, supposedly this is not possible with the shimano design. I'd like to be able to stand up in any gear so I went with shimano. Correct me if I'm wrong, but that's what I found while surfing about.

As for the coaster, It's my attempt to keep things as simple as possible. With the coaster there's no cable, no lever, and it's already part of the hub, simple as can be. I may or may not run a front brake, probably will, since I'm a pilot and we like our back-ups.

Might wanna add in the mass of the grease you'll use to install all of the parts

Sounds like a nice build, good luck!

Haha, I'm not normally such a weight weenie, but I am on this one. Hmmm, exactly what do you estimate the weight of that grease will be. Is lithium grease lighter than your typical grease, do they make titanium grease?