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Moving to a compact chainset - Tiagra

geeteewmbgeeteewmb Posts: 2,221
edited March 2008 in Workshop
Just bought a new (2007) Specialized Allez Sport road bike. It has come with a double crankset 52/39t 175mm, but I want to swap the chainrings off for a smaller set (50/34, 50/32 or 50/30???). I run a 12-25 on the back, but live in a real hilly area. (Not interested in a triple.)

Anyone know the cheapest way to do this?

I was thinking of putting them on the classifieds and offering them for a straight swap, but there probably is little chance of someone else looking to swap what I'm looking for, as I'd like them in a new or near to new condition.

If I do need to buy them, can anyone provide a link or suggestion to the cheapest place for a Shimano Tiagra 50 and 34t rings?



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