So, I have a Colnago frame and am thinking of converting it to a fixed gear, but realized that the rear spacing was 128mm, I was looking arrounf a fixed gear hubs but didnt see any with 128mm spacing, anyone have any idea what hub I should get,
Surly Cross-Check, '85 Giant road bike (unrecogizable fixed-gear conversion
Did you measure it right? Most frames and hubs are 120 (track) 126 (old bikes) 130 (modern road bikes) or 135 (mtb).
Just get a track hub and put a some small spacers in it. Be sure that when you tighten the lock nut, that the axle reaches the outside of the nut. If the frame is steel, you can probably just squeeze the frame together as you tighten the axle bolts. If you do that, be careful not to tweak the dropouts (they are horizontal, right?)
Surly makes some 130mm hubs that have track threading on one side and freewheel threading on the other.