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gbj_tester in reply to @Scilly.Suffolk
anyone know how to calculate stack and reach if you only have the geo table

If you have all the geometry, it's just trigonometry. Most bicycle geometry tables don't list enough parameters to deduce stack and reach. The required dimensions are:
1. Front centres (BB to hub)
2. Fork offset
3. Fork axle to crown length
4. Head tube length
5. Head tube angle
6. Headset stack height
7. BB drop
I could work out the formula, but I CBA as a: you probably don't have all the dimensions you need and b: if I were doing it, I'd sketch it in CAD and measure the outputs

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Scilly.Suffolk in reply to @gbj_tester

a: you probably don't have all the dimensions you need and b: if I were doing it, I'd sketch it in CAD and measure the outputs

a: Correct, I fell at the first hurdle.
b: It's what we'd expect.

Thanks!

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branwen in reply to @Scilly.Suffolk

If you have enough Geo info you should be able to plug it in here;

http://www.bikegeo.net/

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