Results 1 to 14 of 14
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03-21-2011, 06:03 PM #1
Attention Nerds! Geometry Help Needed
Haven't studied the sine, cosine or tangent in almost 30 years. If I replace my zero-rise 100mm stem with a 10 degree rise, 120mm stem, how much will the bar height and reach change?
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03-21-2011, 06:12 PM #2A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects.
Science-fiction author Robert Heinlein
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03-21-2011, 07:13 PM #3Registered User
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Soh Cah Toa
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03-21-2011, 09:13 PM #4
All the cool kids run 70mm or below.
a positive attitude will not solve all of your problems, but it may annoy enough people to make it worth the effort
Formerly Rludes025
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03-21-2011, 11:35 PM #5
How long is a piece of string?
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03-21-2011, 11:36 PM #6
Oh, and er.... it's addition, not geometry
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03-22-2011, 05:56 AM #7yelgatgab
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Based on my calculations, that'll put you somewhere in the late 1990s.
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03-22-2011, 06:15 AM #8
You better not do it, you might get even more confused.
The coefficent of desireability is inversly proportionate to the degree of availability.
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03-22-2011, 06:18 PM #9All the cool kids run 70mm or below.Based on my calculations, that'll put you somewhere in the late 1990s
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03-22-2011, 08:05 PM #10
120sin(10)=rise=20.8mm
120cos(10)=reach=118.2mm
I think thats right, but it has been a long time.
DRS"Always remember to be yourself. Unless you suck" Joss Whedon
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03-22-2011, 08:09 PM #11
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03-22-2011, 08:21 PM #12
assuming a 73* headtube angle would put the bars ~11mm forward and ~25mm up (relative to the position with the 100/0* stem)
to calculate reach, I would need to know more geometry info
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03-23-2011, 12:04 AM #13
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03-23-2011, 07:28 PM #14
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