Originally Posted by
TandemGeek
...However, 180 lbs still remains a discrete weight threshold with respect to Campy components, including cranks... anyone weighing over 180 lbs to be vigilant with regard to having their equipment inspected more often for cracks, etc..
This settles it then that Campy has no real weight limitations, the mention of 80 kg is obscure, in fine print, and only a mild suggestion to be be more vigilant.
Originally Posted by
TandemGeek
Not quite. While the captain's cranks and stoker's left-side crank carry no more of a load than they do on a single bike, the stoker's drive-side crank arm & rings as well as the bottom bracket DO, in fact, carry the cumulative loads of both the captain and stoker: how else would the captain's power contributions get to the rear wheel?
So, as regards the BB and crank, it must withstand torque more than it does rider weight. Sensitive instruments on the stoker's BB could more easily tell how much power and torque the captain generated than how much he
weighed.
As regards the Campy Record aluminum crank and BB's ability to withstand power and torque, the crankset that has withstood the
1600 watts of sprinter
Tom Boonen , has nothing to fear from the combined wattage, torque or weight of Mrs. Ritterview and myself.
