pocket rocket pro measure

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kenny leader

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Apr 21, 2025, 1:26:19 PM4/21/25
to y...@bikefriday.com
Hi All, sorry to post again. On the spec sheet for the Pocket Rocket Pro that i Just listed,  it says the Effective top tube length is a 58cm, but I don't think that is correct. I just measured from where a "normal" top tube would meet parallel to the ground and to the middle of the seat tube, and that  is 54cm.  that would make sense because it fits me just right, and that is the measurement from which I had BF build it, which came from  my 54cm Cervelo road bike. It should fit someone between 5-5 o 5-10 or so. thanks. Kenny L

Kelly Finan

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Apr 21, 2025, 1:47:59 PM4/21/25
to Bike Friday Yak!, klea...@gmail.com
Hi Kenny,

Just a thought on the measurements: historically, road bikes were sized by seat tube length, which was usually shorter than effective top tube length. As you know, BF instead uses effective top tube length for their frame sizes. So it's entirely possible that the size 54 Cervelo has a 54 cm seat tube and a 58 cm top tube. (Or possibly it is called a size 54 based on some idea of what a size 54 once was, back when road bikes had 100% horizontal top tubes... I find bike sizes to be quite confusing). If it's the case that the Cervelo has a 58 cm top tube, the size 58 BF would be the same size. BUT If you measured carefully with a level and got 54 cm, then I guess it's a size 54. Just figured I'd explain why the BF might actually be 58 and still fit like a 54. Someone else please jump in if I'm wrong.

Kelly

kenny leader

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Apr 21, 2025, 4:05:22 PM4/21/25
to Kelly Finan, Bike Friday Yak!
Thanks for the explanation. 
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