Best way to measure frame

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Art

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Apr 23, 2024, 5:33:55 PM4/23/24
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IMG_0052.jpegI’ve been away from bikes and Riv for a few years. 
I have a 2006 Atlantis and am not sure of the frame size. 
What’s the best way to measure the frame..
TIA. 
…..Art

jeffbog...@hotmail.com

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Apr 23, 2024, 5:39:57 PM4/23/24
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Center of crank to top of seat tube

Bill Lindsay

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Apr 23, 2024, 5:40:28 PM4/23/24
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If the bike pictured really is from ~2006, and if it has 700c wheels then I'd bet a dollar that it is the size they called a 58cm.  This Cyclofiend page has the historic Atlantis Geometry info.  http://www.cyclofiend.com/rbw/geometry.html

Measure from the center of the cranks, along the seat tube to where the top of the top tube intersects the seat tube.  That should be damn close to 58cm.  If it's not close to 58cm then decide what size on the chart is closer.  To confirm it's a 58, match some of the other numbers from the geometry chart. 

Bill Lindsay
El Cerrito, CA

Art

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Apr 29, 2024, 1:29:57 AM4/29/24
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Thx

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