Hi All,

I am beginning the transition on my trusty road bike (Scott Speedster S20 à la 2011) from Shimano 105 (5700 groupset) to Ultegra (probably 6700 to stay 10s). This is precipitated by a couple of things: (1) a busted RD at a race in Puerto Rico leading to an installation of a Tiagra RD and (2) a newfound interest in tinkering with my bike and a local shop that I can rent time and tools at.

I looked at Shimano's Compatibility Chart (found here - Download) and it SEEMS to be the case that I can mix and match my 10s components so that I don't have issues along the way. My pockets are not in a deep enough place that I can replace everything at once, so I'm planning to slowly do it.

That said, can I slowly upgrade to Ultegra? My plan is to pick up the components in some order like this:

-RD
-FD
-Chain
-Cassette
-Crank
-Brake/Shifters

Will this work or should I just wait and save and do it all at once?

Thanks in advance for your assistance. I searched but after few pages in, I didn't find quite the same question I'm asking.