FlyBikes are trying to reduce the amount of parts on your bike. They do this to make bikes simple, easier to assemble, lighter, and nicer overall. This has been their motivation when they created many of their parts like:
1. The Spanish bb (no cups)
2. Headset (one piece cup, no internal ring)
3. Cranks (just 1 bolt)
4. Forks integrated cone race (no more inserted race).

So that is four less parts on your bike. Now there will be five less parts on your bike. Fly have gotten rid of a spacer in the Spanish bottom bracket kit. They have redesigned their sprocket with an integrated bottom bracket cone so you can forget about that part. They have also refined it by getting rid of the holes (that were originally made for the old bash guard) and added this tear shaped detail on the arm bolt holes.
It will be available in mid January.
Flybikes