Pedal and BB threading; why do they get tighter with use?
10-29-12, 09:40 AM
#26
Senior Member
Apologies in advance to those intending to apply good science to answer Ruberod's odd question. I suspect he was intentionally trying to start a fuss out of boredom.
Frankly the pedal issues were worked out successfully decades ago. If they are installed and tightened correctly, it is incredible rare for anything to go wrong with them in practical use. They do not "self-tighten"...but what they do do is to not "self-untighten" which is the point of the design. Geez! Am I missing some point or do you guys need to put two or three markers in the coffee cup to solve this mystery???
Frankly the pedal issues were worked out successfully decades ago. If they are installed and tightened correctly, it is incredible rare for anything to go wrong with them in practical use. They do not "self-tighten"...but what they do do is to not "self-untighten" which is the point of the design. Geez! Am I missing some point or do you guys need to put two or three markers in the coffee cup to solve this mystery???
10-29-12, 03:10 PM
#28
Keepin it Wheel
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10-29-12, 03:15 PM
#29
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Maybe claiming that it makes the crankset stiffer would work.
When people started transitioning from square taper to the various versions of hollow axles and external bearings and all that, crank stiffness was a frequently quoted advantage. As precession is due to the pedal axle wobbling around a bit, so maybe one could claim that having a pedal axle that remains a little more perpendicular to the crank would make pedalling more efficient. There's a potential selling point.
When people started transitioning from square taper to the various versions of hollow axles and external bearings and all that, crank stiffness was a frequently quoted advantage. As precession is due to the pedal axle wobbling around a bit, so maybe one could claim that having a pedal axle that remains a little more perpendicular to the crank would make pedalling more efficient. There's a potential selling point.
