Do you know what stem angle you need? The Deda Zero 100 comes only in -12 degrees, which is really aggressive.
Unless you have special needs (very strong prototypical track sprinter type), any quality road stem and handlebar will do just fine. Road bars are actually more popular than "Track" bars. For instance:
It's unwise to buy parts blindly. Stems come in various lengths and angles for a reason. If you don't know what length and angle you need, look to determine that first. Also, changing handlebars may affect the stem that you'd need to put your hands in the right place. For example, a really deep-drop handlebar may require a rise stem to keep you from going too low. Shallow bars may require a flat or negative stem.
To answer your question, 3T makes some great stems. I would venture to guess that unless your head tube is really long, combining Deda Pista bars with Deda Zero 100 Pista stem will be a very, very low setup and may not be functional at all.
Originally Posted by gtrob
Roadies can run tempo all year as that's what humans were designed for. If you want to be a cheetah, lay around and lick your paws more.