Got a question concerning hope disc brakes 
I have a couple of sets of the old C2 hydraulic brakes and they have I believe a 6mm diameter hose.
I've looked about a bit but can only find hose in 5 mm diameter
Can I swop it for the 5mm without any problems?
[the fittings appear to be the same and screw into the banjo and nipple holes without issue]
Im trying to renovate a few sets back into life and have plenty of spares ,pistons,seals kits etc to keep them going,its just a couple of hoses need replacing
Any disc techy heads experience in this? 
