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03-21-07, 02:22 PM
Hello everyone,
Newly minted member here.
Just wondering where the angle measurements are taken from when describing frame geometry. Example: A 75 degree head tube. It can't be the angle on the inside of the tt and ht because its obtuse. Is the angle measured by imagining the tt passing through the head tube and measuring the angle on the other side? ie: the supplementary angle to the obtuse angle?
Thanks
Newly minted member here.
Just wondering where the angle measurements are taken from when describing frame geometry. Example: A 75 degree head tube. It can't be the angle on the inside of the tt and ht because its obtuse. Is the angle measured by imagining the tt passing through the head tube and measuring the angle on the other side? ie: the supplementary angle to the obtuse angle?
Thanks