Which hub? Do these measurements sound correct...

ok. did a few measurements on the concorde. ('94 bike with campag Mirage/Avanti groupset). I came to the following chain line options with the existing BB and existing chain rings.

Using outside chainring (52) the chain line will be 50.25 > 50mm
Using the inside chainring (39) the chain line will be 43.25 > 43mm

Disregarding the .25mm to measurement error.

My wheel spacing's are as follows; front 100mm and rear 130mm. I went into my LBS and they chap there was sure it should have been 135 but I measured again and it is really 130mm

So the question is what do I buy a 120mm rear wheel with some spacers or is 130mm a standard width?

I am thinking of using the existing rim and change the hub for a flip flop version. Any wheel builders near Maidenhead? Any advice on hubs? Or should I get a complete wheel and just sell the current wheelset?

Once things are ready and after the last sportivo in October I will start the conversion to fixed wheel / flip flop. Planning to go fixed wheel but will use the flip flop option to revert to single speed if I don't get on with it.

Ta
Dennis

Is this hub any good:
http://www.planet-x-bikes.co.uk/i/q/HUOOLF/on-one-large-flangetrack-hub

Those are decent enough hubs. I have a variant of these, branded System EX, which look identical except for the (crappy) locknuts and cones. Whether there is enough axle to allow respacing to 130 mm I do not know - however, these SJS jobs do allow it:

http://www.sjscycles.co.uk/sjsc-double-fixed-track-hubs-with-high-quality-sealed-bearings-36-hole-polished-alloy-prod11137/?src=lfgss