Giant defy 0 vs defy 1
Hi, I was wondering if anyone could advise me on the following. I currently have a Specialized tricross sport 2009 and am looking to upgrade to more of a dedicated road bike, budget about £1000 to £1200. I'm keen on the Giant defy 1 or 0, as far as I can see the only difference is the ultegra groupset on the defy 0 which is 200 more expensive. Is it worth the extra money for someone like me who rides mostly at weekends plus the occasional sportive? Would I notice a difference between the ultegra and 105 groupset coming from my current bike with no experience of other road bikes?