Joined: Feb 2012
Posts: 19,352
Likes: 5,469
From: Rochester, NY
Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB
Curious use of the word "drop" for a stem that goes up...
Make sure the stems' quills (the part that slides into the fork's steerer) are a diameter match. There two common familys of compatibility, both have an inch aspect. The old standard was a 22.2mm (7/8") quill fitting oinside of a one inch (OD) steerer, called the one inch standard. And the 25.4mm/1.0" quill fitting inside the 1.125" OD steerer, called the 1 1/8" standard. Both have a part that is on inch...but are different.
The other issue that might come into play is the length of the cables. With a greater reach from the frame and ft brake to the higher location of the bars the cables might have to be lengthened.
Lastly is the seat. I've found that with a more upright body there is often the need for a saddle with greater rear width. Andy.