Originally Posted by
sunburst
The front shifter has a rubber plug for this hole. Is that cable routing access?
Yes -- put the shifter into its most "relaxed" position (Low for the left shifter and 10 for the right shifter) and pass the cable through that small hole. It should pass straight through the shifter mechanism and out through the barrel adjuster. You may have to play with it some to get it through, but that's the intent.
Originally Posted by
sunburst
I bought them on eBay and the plan is to do an upright conversion on a road bike equipped with a standard Shimano 10-speed cassette and 10-speed Ultegra RD. In the front is a FSA compact crank and I assume an Ultegra FD.
Were they sold as road shifters or mountain shifters? It's hard to tell from Microshift's website what they may be. They don't look like Centos or R10, but they may be from an older 10-speed road group. I think you'll need road shifters, as 10-speed road and 10-speed mountain use different actuation ratios.