• Cheers for the replies guys! I may have shot myself in the foot a bit when i bought my crankset - it's this;

    http://www.chainreactioncycles.com/Models.aspx?ModelID=35736

    which i got simply due to it being affordable and apparently worth a lot more if you believe the rrp listed! The issue i have found is that its ISIS drive and i ended up with a 113mm BB, which is 10mm larger that the original on the fuji track frame. Here's where my newbie knowledge of SS/fixie bikes came into play and i thought "5mm won't make all that much difference" but i didnt take into account the fact that the chainring will sit on the face of the crankdisc as opposed to offset towards the frame like it would be on a spider crank.

    I have a bit of string around the frame in my room atm to get an idea for the chainline and it looks way out. I'm thinking i may just have to put the project on hold and save up for a new crankset and BB...

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