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Seat tube range c-c
56.4 - 56.9
Seat tube range c-t
58.1 - 58.6
Top tube length
52.8 - 53.2
Stem Length
10.8 - 11.4
BB-Saddle Position
77.6 - 79.6
Saddle-Handlebar
51.4 - 52.0
Saddle Setback
6.1 - 6.5
About this fit
Explanation of Fit Calculator Output Values
1.Seat Tube Range C-C
Your new bike's seat tube height should fall within this range. "Center-to-Center" signifies the length of the seat tube as measured from the center of the bottom bracket spindle to the midpoint of where the seat tube intersects the top tube. The seat tube height is most important as it relates to your head tube. If your seat tube is too short, your head tube will almost certainly be too short. This results in too low of a handlebar position placing an inordinate amount of stress on your neck and back. For this very reason, if you feel as though you could go with either of two sizes, going with the bigger frame is normally advisable. Please keep in mind that many frames come with a sloping or "compact" frame geometry in which the C-C seat tube measurement is artificially short. In the case of compact frames, you should primarily focus on the top tube measurement.
2.Seat Tube Range C-T
"Center-to-Top" signifies the length of the seat tube as measured from the center of the bottom bracket spindle to the top of the seat tube where it intersects the top tube.
3. Top Tube Range
This measurement is along the top tube, from the midpoint at the seat tube to the midpoint at the head tube. No single piece of frame geometry has a greater impact on comfort than your top tube. If you plan on paying attention to one measurement and one measurement only, make it this one. Keep in mind that we do not measure the actual top tube on bikes with compact frame geometry. Rather, we use an "Effective Top Tube" measurement - an imaginary line drawn parallel to the ground along the length of the top tube.
4.Stem Length
This measurement indicates your ideal stem length. It takes into account that your stem will be flipped to its flatter angle (e.g. 80° for Deda, 84° for Ritchey).
5.BB-Saddle Position
This measurement is along the seat tube, from the center of the bottom bracket spindle to the top of the saddle. It is an ideal starting point for saddle height. Given the varying differences of cleat and pedal heights, and given the varying differences in the thickness of saddles, the BB-Saddle position has a broad range of 2cm.
6.Saddle-Handlebar
This measurement ties together your choice of stem length with your saddle setback. It is measured from the nose of the saddle to the near edge of your handlebar. Keeping within this range will assure that you don't accidently push the weight balance of your bike either too far forward or backward.
7.Saddle Setback
This measurement is primarily a function of your femur length. The longer your femurs, the further your saddle needs to be behind the bottom bracket in order to allow you to produce power. If you sit too far forward (or too far back) you can over-emphasize certain muscles and joints, which robs you of power and can potentially cause you injury. Saddle setback is measured by dropping a plumb bob from the nose of your saddle and measuring how far behind the center of the bottom bracket it falls. This is not to be confused with the setback measurement of your frame, which is a measurement taken by dropping a plumb bob from the center of your seat tube/top tube interface, and measuring how far behind the center of the bottom bracket it falls.
