Shimano 105 Crankset Upgrade for Felt Z85 2011

Jack.Pickering09 Posts: 8
edited February 2013 in Workshop

My felt z85 (2011) has a 105 groupset apart from the crankset. I want to upgrade the crankset to 105. I don't know what bottom bracket I would need to fit 105 53/39 5600/5700 double.

Could anyone offer advice as to what to get? It's likely I'll get a crankset on ebay that wont come with the BB.

Any help would be great!