Hey folks.

I bought a Scott CR-1 Comp with a Tiagra chainset and 105 brakes/mech/cassette.

Chainset is 52/39 and cassette is 11-25

When I bought it, it was with the thought that I could get a good frame for the price, and upgrade out of the tiagra/105 mix when I had money. Well, I have some money - and am looking into the upgrades now. However, I don't seem to see anything that's worth upgrading to...

I mean - Ultegra is the obvious choice, but it all seems to be still 52/39 and 11/25 for the mechanics. I know there are weight differences in the Ultegra parts - but to be honest, I need to worry about the extra 10lbs on me before looking at splurging on lighter parts on the bike.

So my question is this - is there anything I can upgrade to that'll simply just make the bike go faster - without taking into consideration weight losses?

(I'm working on the 10lb btw - but Christmas ain't helping!)

Thanks in advance, and apologies if this is a dumb question.

John