Actually, you don't need to swap out the crankset, just buy new chain rings. A compact will hold a 52 (or even larger I think), the rule is just that the largest gap you can have between rings is 16T, most use 14-16, i.e. 50/36 or 50/34, but nothing says you couldn't put other sizes on there. Ask your fitter for help, I don't think its a big deal, you just need to be sure to order chain rings that are compatable with the size of the bolt arms (I think that is what they are called, these are the things you screw the chain rings on, and they do come with different bolt circle diameters-bcds).

Quote Originally Posted by GLC1968 View Post
OK, so the bike arrived last night. It's bee-you-ti-full! I will need to cut the steerer tube (I'm going to contact my fitter about that) and all the cables still need to be routed. I also still need to buy pedals but for now, I'll just borrow the ones off my road bike.

The odd thing? It came with a compact crankset! Why in the world would they sell a tri bike with 650 wheels with a compact? I actually topped out on my road bike (also 650's) in a flat race this summer with a 52T large ring. On a tri bike? There is NO WAY a 50T ring will be big enough! I'm now shopping for a replacement.

Anyone have an extra standard double crankset with 165mm arms lying around unused?

Once I get it fully put together, I promise to take photos.