Current Projects chat and miscellany

I took a tube from a bikeframe and i have ride maybe 2000k with those DIY spacers, no problem at all

Yes, as long as you get the faces parallel pretty much any lump of metal will do the job. As @ObiWomKenobi is using a CK headset, I'd be even more concerned than usual about getting the faces precisely parallel, as the original CK upper didn't use a proper collet, so it relied on the compression being square more than a Dia Compe patent model, which tends to get the upper bearing co-axial with the steerer pretty well even if the pressure is not uniformly distributed around the circumference of the collet.