I've got a really nice Sterling mtn frame that I think would make a great road bike. Trouble is, the top tube is really long. I'm most comfortable with a 52cm crank to seat tube height and a 54 cm top tube length w/ a 90 mm stem. The Sterling has a 57 cm top tube. I'm planning on putting drop bars on the bike. Can I get a super short stem? Or is there another way around this issue? I put Trekking bars and a shorter stem on my stumpjumper so I could use it as a touring bike which worked ok since the front of those bars shortened up the top tube by a few cm. But I'd really like to use something closer to drop bars on the Sterling frame. Any ideas or suggestions would be appreciated. thanks!