I'm contemplating switching from an Ultegra Triple (53/39/30 and 12/27 on a 2003 Trek 5200) to a compact double (50/34 and 11/28), and trying to do it on a budget.
The objective is to duplicate a friend's very nice SRAM Red setup that has the same gearing (although in a 10-speed configuration). It has basically the same gear range and it looks like there is a lot less double-shifting.
I have a 50/34 Ritchey compact crank and bottom bracket that was once on my bike, so I know it works.
I found a "Shimano compatible" SRAM PG-950 11/28 cassette for $27 and ebay has Shimano Ultegra FD for around $30.
A few questions:
1. Do I need to swap the triple FD for a double?
2. The triple setup has a long cage RD. Can that be swapped for a short cage? Any benefit to that, other than cosmetic.
I'm hoping to take this to the local REI, which has good labor rates on things like this, and get them to do the swap.
Advice, critique, suggestions appreciated!