Groupset

[Joffey]

Having had recently both 10 speed and 11 speed 105 (and 9 speed 105 on my winter bike) there is a big difference in terms of shifting when upgrading to 11 speed but not when upgrading to 10 speed.

IMHO my 9 speed 105 (10 years old with exposed cables) isn't that different to the 10 speed 105 and I doubt new 10 speed Tiagra would be any worse.

11 speed is a different animal, it's a super slick shifting experience. To the OP I'd hang on, save your money, then switch over to 11 speed an a couple of years.

 

[bpsmith]

I would say either do it when the bike is brand new, as parts coming off actually have some resale value, or stick with what it comes with until worn out.

Would certainly be looking at 11 speed if I was swapping though.

 

[mythste]

Having had recently both 10 speed and 11 speed 105 (and 9 speed 105 on my winter bike) there is a big difference in terms of shifting when upgrading to 11 speed but not when upgrading to 10 speed.

IMHO my 9 speed 105 (10 years old with exposed cables) isn't that different to the 10 speed 105 and I doubt new 10 speed Tiagra would be any worse.

11 speed is a different animal, it's a super slick shifting experience. To the OP I'd hang on, save your money, then switch over to 11 speed an a couple of years.

+1, my colleague has 10spd 105 and there wasnt that much between me old 10 spd Tiagra.

The 11spd 105 on my new machine is a real improvement. Highly recommended.

 

[Smokin Joe]

+1, my colleague has 10spd 105 and there wasnt that much between me old 10 spd Tiagra.

The 11spd 105 on my new machine is a real improvement. Highly recommended.

As the number of speeds increases the engineering has to improve in step to get it to work reliably. For all the harking back to "The good old days when bikes were simpler" the components we fitted were often crudely made in comparison, even those from top end manufacturers.

 

[mikeruss]

I was under the impression I couldn't change to 11 speed from 10 that's why I initially asked about 105 upgrade

 

[Ajax Bay]

You can, but the consensus is that it'd be an expensive change for limited gain. @martint235 answered this:

If you're upgrading the whole groupset, you'll need cranks, levers, front derailleur, rear derailleur, cassette. You may need a new BB, my 105 runs on an HTII bottom bracket, if your Tiagra does the same it should be ok. While you're having all this work done, you may as well replace the cables and outers as the routing will probably be different (iirc new 105 cables come down the bars not out of the side of the lever).

I'd add a chain to the list above. Could you manage without 105 brake calipers? Your current freehub may or may not take an 11sp cassette; if it doesn't you'd need a new wheel (in practice).

 

[Drago]

I own one bike with 10 speed Tiagra and one with "old" 105 5700, my Summer and Winter commuters. Visually they're virtually identical, and apart from a slightly longer lever throw on the Tiggy they're utterly indistinguishable to use. Ditto the brakes.

In essence new Tiagra and old 105 are the same thing thing, and the 105 isn't an upgrade in any tangible way.

 

[Ajax Bay]

New Tiagra and old 105 are the same thing thing, and the 105 isn't an upgrade in any tangible way

Edit: post based on inaccurate reading of OP, so deleted - thanks
@Drago and you're right right (as above).

 

[Drago]

The OP was asking about upgrading to 5700, the 10 speed standard.

in the future I would like to upgrade to the shimano 105 5700 groupset.