Just want better group set I had 105 on another ex bike and the difference to Sora was a lot,just better shifting,better everything really,I know it's not going to turn me into Chris froome ,I'm almost afraid to ask this - but what are you expecting the upgrade to achieve?
Ribble have the same deal I think bit cheaper by £20,and they are up the road from me,but the ultegra price you gave is the cheapest I've seenOr less, assuming Tredz have the claimed stock (by no means certain) and one of the specs is your size/preferred cassette
http://www.tredz.co.uk/.Shimano-105-5800-Black-Groupset-11-Speed_89169.htm
Yes @vickster thats what I was thinking ,unless there is a really good one off deal for ultegra then 105 is prob my best bet,like you said it's 11 speed better than the older version,but never had ultegra so I couldn't comment on thatAnecdotally at least the 11 speed 105 is better than the old 10 speed so you might be happy enough with that and the £150
I had the 11 spd 105 on my BMC when it came from the shop, so I can vouch for it being a good upgrade.Yes @vickster thats what I was thinking ,unless there is a really good one off deal for ultegra then 105 is prob my best bet,like you said it's 11 speed better than the older version,but never had ultegra so I couldn't comment on that