Hey  I've got a used set of Echo 7075 CNC cranks and a Raceface bottom bracket but i only have one crank bolt.  I was wondering if it was possible to use the trialtech isis bolts with this set up? http://tartybikes.co.uk/product.php?produc...;category_id=55   (these ones)  Instead of getting the Echo ones which somebody advised me to get. http://tartybikes.co.uk/product.php?produc...;category_id=55  (these ones)  Cheers, Matt