Chainset

I am thinking of changing my chainset - mine is currently a 3/4 years old tiagra set. I am looking at the 105 5800 as the colour matches my bike more than the grey of tiagra. However before i throw £60-70 at it, would i see any performance upgrades from the new one or would it only be aesthetic? Is the difference even noticeable? If it isn't i think i'll leave the bike as it is.
Cheers
Cheers
0
Posts
Cheers - BB looks and feels fine...sadly
N+1
The full chainset should only need changing if there is some damage or wear to the body of the crank.(Or you really like the look of one that would suit your bike better!)