Quote Originally Posted by camaro_fever68
The counter weight design and bob weight.
Ok, but couldn't the balancing shop take care of it in any case? I know one can specify different cranks which make it easier when balancing the rotating assembly, but with a good shop, any crank should be able to fit the bill.

Also tell me the difference between counter weights and bob weights. Isn't the bob weight a tool which the shop uses to balance the crank and the counter wieght the part whcih is part of the crank?

So in essence, the counter weight is the only thing that is different from one crank to another, depending on the rod one chooses? Yes?

I MAY NOT KNOW IT ALL BUT I'M WILLING TO LEARN AS MUCH AS POSSIBLE......