Changing from a triple to double

[2good]

Currently running a 9sp triple


Crankset FSA Omega MegaExo, 30/39/50 with a Cassette Shimano HG50 12-25

How easy can i change to a double?

Cheers

 

[fossala]

You will need to change your shifters, front derallier and chainset.
Why do you want to change?

 

[TheDoctor]

Easy. Don't change onto the inner ring.
Simples.
If you're really bothered about saving a bit of weight, you could remove the inner ring and reset the front mech, but it would be easier to save the 75g or so by getting a haircut and blowing your nose.

 

[Titanium]

I'm guessing you'd prefer a 34/50 or thereabouts?
Changing the shifters may not be strictly necessary as far as I know. (Anyone comments on this?)
With the front mech limited in movement range by the adjustment screws, a triple STI can function on the double chainset pretty well.
You could even try staying with the existing front mech - if it works, it works.
IMHO. I stand to be kowected.

 

[2good]

Hi

Change of plans, my fsa bb has gone and it was going to cost £40 to replace

I've decided to change to chainset to shimano

Will this fit

http://www.merlincycles.com/bike-sh...hainsets-road/shimano-sora-road-chainset.html

It's only for my commute/winter bike

Cheers

 

[asterix]

I'm guessing you'd prefer a 34/50 or thereabouts?
Changing the shifters may not be strictly necessary as far as I know. (Anyone comments on this?)
With the front mech limited in movement range by the adjustment screws, a triple STI can function on the double chainset pretty well.
You could even try staying with the existing front mech - if it works, it works.
IMHO. I stand to be kowected.

Think you are right. I reset up my last bike as a double using a 105 derailleur that could also handle a triple. It's reach that matters; on a double you might want a big cog on the back that a short-reach changer wouldn't cope with. I kept the front mech as it could do either triple or double. It has bar-end shifter that can do either but I do know that 105 STIs will work fine with a triple or a double, they just won't (or wouldn't) work with an MTB chainset because the gaps are/were different to road chainsets.

I like doubles but in my tourer I need a triple, no question.

 

[yello]

Changing the shifters may not be strictly necessary as far as I know. (Anyone comments on this?)

I didn't need to, I was able to restrict the mech movement sufficiently with the limit screws.

I switched from triple to compact and needed only to change the bottom bracket. Shifters and mech remained the same. It was a remarkably simple swap and, in my case, one I found well worth doing. Cost me all of maybe £50.

I think (to issue a caveat) that I might have got lucky. It may not always be so simple and is probably a case by case scenario, depending on what your switching from and to.