Quote Originally Posted by Antaresia View Post
I just measured the top tube and it looks like it's the 50cm size.
Did you measure the top tube to be 50cm? Or did you measure the top tube, look it up in Soma's geometry chart, and found a match with the 50cm frame size?

FYI: For better or worse, bike frame sizes are specified by their seat tube length. A 50.5cm (actual) top tube is used in the 42cm Double Cross, which is also the smallest frame size. Whereas the 50cm Double Cross has a top tube of 53.5cm and a standover of 29.9 inches.

How well does the bike fit you in terms of reach? Are you stretching forward to the handlebars? Are they at a comfortable distance? Or do they feel awfully close? (This is a much better indicator of fit than standover clearance.)

How high is the saddle on your mixte?

With the step through nature of the mixte, you are far above the frame as you boost up to the saddle when starting. Now, with the nearly horizontal top tube, the frame is always there. You might need to establish different starting patterns for this bike.