Originally Posted by Kontact

Why would the stem be super short? Does the OP's current bike use an already short stem?

The difference in top tube length between the two bikes is 11mm. That's because stack ignores the slope of the headtube, which makes reach 3mm shorter for every 10mm gain in stack. So a 20mm shorter stack bike (or just moving your stem down 20mm) makes the reach 6mm longer. At that point you only need a stem that is 1cm shorter to duplicate the same horizontal distance from the seat post. So you go from a 110mm stem on one bike to a 100mm stem on the new bike. How is that a problem?


I'm not saying that the OP's new bike idea will fit him fine. He should look into a fit. But there is no reason it couldn't be made to fit. He can also use a -17 degree stem or removed spacers to simulate the fit of a lower stack height. Or, he can use 20mm of spacers and one size smaller stem on the new bike to put himself in the identical position to the old one. Unless you ask for the steerer tube to be chopped, most production bikes come with 40mm of steerer tube height that the stem can be moved up and down in. You are reacting to the OP as if he's got a currently slammed stem and is going to another bike with a slammed stem. But both probably have a good amount of adjustability in an overlapping range that would allow for identical fit, if going lower doesn't work out.