I see honda have changed thier finance deals on the Fireblade. The offer is also on the 2015 bikes but the link below shows 2014 http://bikes.honda.co.uk/motorcycles/range/super-sport/cbr1000rr-fireblade-2014/offers/finance.html
It has been at 5.9 for a while now, I suppose it depends how desperate the dealer is for the sale. I got 0% form a Honda dealer when the official Honda site was quoting 5.9%. So there is obviously some leeway.