Need compact or smaller chainrings for this setup

[Allrounder]

As the title states, i need to replace this with compact or smaller chainrings. Dont know what to search for as all the ultegra chainrings i find has 4 connection points and not 5. 

[David Marshall]

You are basically between a rock and a hard place.  Those rings are 130mm bcd so you are not likely to get a smaller than 39T to fit. Also new rings will cost close to what a new crank will.

Your BB is either Octolink or square taper so you will need to change that as well.  I would look at a Sora or Claris crank with compact ring set up.

[Allrounder]

1 minute ago, David Marshall said:

You are basically between a rock and a hard place.  Those rings are 130mm bcd so you are not likely to get a smaller than 39T to fit. Also new rings will cost close to what a new crank will.

Your BB is either Octolink or square taper so you will need to change that as well.  I would look at a Sora or Claris crank with compact ring set up.

Sweet. Thanks man. 

[NC_lurker]

17 minutes ago, David Marshall said:

You are basically between a rock and a hard place.  Those rings are 130mm bcd so you are not likely to get a smaller than 39T to fit. 

Just to add, smallest big ring would be 52T

On a previous bike, with a similar old 10sp setup, I swapped to a 11sp 105 compact (50/34). Running 11sp cranks on a 10sp worked, but shifting wasn't ideal. So try to stick with 10sp compact (Tiagra, Claris, GRX-400)

[Allrounder]

Its cirrently a 2x9 ultegra setup. I want/need to upgrade to a compact 10/11 speed for the wife. Where we live, you are either climbing or going down hill. 
 

its a new to her, tcr. 

[David Marshall]

3 minutes ago, Allrounder said:

Its cirrently a 2x9 ultegra setup. I want/need to upgrade to a compact 10/11 speed for the wife. Where we live, you are either climbing or going down hill. 
 

its a new to her, tcr. 

If you are going to stick with 9 speed go for a Sora crank with the offset 4 bolt design.  Other speeds may work but with varying degrees of success.  If you want to go 10 or 11 speed you will need a complete new groupset.  Be advised that if you need to replace any parts apart from the crank on that 9 speed you will need Sora 3500 parts (or equivalent ) and not the newer Sora 3000. Minefield!

[shaper]

2 hours ago, Allrounder said:

Its cirrently a 2x9 ultegra setup. I want/need to upgrade to a compact 10/11 speed for the wife. Where we live, you are either climbing or going down hill. 
 

its a new to her, tcr. 

If buying a new crank and it is for your wife, also consider getting shorter crank arms, either 170 or 165mm, She will be able to spin easier on the hills