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Trek 750 frame sizing

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Trek 750 frame sizing

Old 12-26-19, 10:01 AM
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.M.
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Trek 750 frame sizing

How are these sized? Are the center to center or center to top of seat tube? The one I have feels like a 17, but all measurements outside of C2C align more with a 19 inch from treks spec sheet. This is a 97 750 multitrack.

I have had similar 720 and 730s in the past but they were earlier models and had riser vs flat bars. So I wasn't sure if maybe they made these slightly different. I would assume not, and have never had this much issue in my life. I feel like a dip
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Old 12-27-19, 04:59 AM
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The numerical size is the measurement (in inches) of the seat tube, from the center of the bottom bracket to the top of the seat tube. My '97 750 is a 21", and the seat tube measures exactly that.
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Old 12-27-19, 06:56 AM
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Yeah, someone else directed me to the 97 catalog where it has there geometries at the bottom. Originally I didn't scroll all the way down to the back pages so I've been using the mechanic spec catalog that has no diagrams. These def fit differently then the other models I have ridden in the past. Thanks
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Old 01-26-20, 07:09 AM
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Originally Posted by hokiefyd View Post
The numerical size is the measurement (in inches) of the seat tube, from the center of the bottom bracket to the top of the seat tube. My '97 750 is a 21", and the seat tube measures exactly that.
Does your 750 have that stamped on the bottom bracket too? Mine is stamped 750 19 B10407
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Old 01-27-20, 06:33 AM
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Originally Posted by .M. View Post
Does your 750 have that stamped on the bottom bracket too? Mine is stamped 750 19 B10407
Yes it does. It has "750 21" and then the serial number.
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