Crank Arm Angle
Crank Arm Angle
(OP)
Hi, for a 3 piece crank is the angle (or taper) the same for any length of crank arm?
Ex. If you where standing on the bike and was looking down at the right hand crank arm, you will see the crank arm going out at a angle to miss the chain stay. Would a smaller crank arm follow the same angled path or the shorter the arm would result in a different angle? Take a crank arm length of 180mm to 150mm.
Thanks!
Ex. If you where standing on the bike and was looking down at the right hand crank arm, you will see the crank arm going out at a angle to miss the chain stay. Would a smaller crank arm follow the same angled path or the shorter the arm would result in a different angle? Take a crank arm length of 180mm to 150mm.
Thanks!
RE: Crank Arm Angle
Why do you need to know they info?
FYI - it's not that angle that provents the crank arm from hitting the frame it's really the bottom bracket spindle length that you should be concerned with. Also, if your bike has front chain rings make sure your chain line is correct.
Here is a link for everything bike related:
http://www.sheldonbrown.com/bicycle-links.html
Best Regards,
Heckler
Sr. Mechanical Engineer
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