Get tiagra cranks, they look a lot like dura ace 7800 and you'll have the benefit of external bb, think they're fairly cheap too and the tiagra logo should come off easily
http://www.wiggle.co.uk/shimano-tiagra-4650-hollowtech-ii-10-spd-compact-chainset/?lang=en&curr=GBP&dest=1&utm_source=pla&utm_medium=base&utm_campaign=uk&kpid=5360448603
Linked compact by mistake but double easily available too
Good call.
@miro_o started
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Get tiagra cranks, they look a lot like dura ace 7800 and you'll have the benefit of external bb, think they're fairly cheap too and the tiagra logo should come off easily
http://www.wiggle.co.uk/shimano-tiagra-4650-hollowtech-ii-10-spd-compact-chainset/?lang=en&curr=GBP&dest=1&utm_source=pla&utm_medium=base&utm_campaign=uk&kpid=5360448603
Linked compact by mistake but double easily available too