Re: Torque Settings
It has to do with the size and number of bolts. Basically the wheels need a certain clamping force applied to the rims so that the rim does not wobble and either loosen or shear the bolt head off. Since the front wheels only have 4 they need the higher torque to reach their required clamping force, while the rear uses 5 (probably for Factor of Safety). If you really want you can calculate the force that is being applied by these formulas:
Normal force:
F=T/Kd
(T is torque in inlbs, K is a constant .2, and d is the bolt diameter 9/16 for the front and 1/2 for the rear)
Multiply the F by the number of nuts/bolts applied to the wheel to get the total normal force: F Normal (N)
Clamping Force:
Fclamp=u(s)*N
(u(s) is the coefficient of static friction (.15 for steel on painted steel), N is the total normal force you calculated previously)
This is probably a little more detail than you wanted but what you'll find is that the force comes out to be within ~2% of each other.
I got the bolt and nut sizes from a different forum because I do not own a bx2350. if they are the same size thread then they are within 10% of each other.
This is all fairly theoretical and there are other factors that weigh into the real world number like bolt expansion due to temperature differences when torqued, if the surface or threads were accidentally lubricated, etc...
