Moving spare tire to rear
What would be the approx. shift of weight if I move a 40 lbs spare from the front of a fiver to the rear bumper. Would the pin weight go down by approx 80 lbs? I know there could be a lot of variable...
Forum Discussion
Artum Snowbird wrote:
Weight times distance = weight times distance.
So, a spare tire in front 40 pounds at (distance from center of axles) will equal less weight on the pin.
like this. 40 X 15 = 600 (to location of spare is 15 feet)
then X (at the pin) times (say 20 feet) would then work out X is 30
So.. taking the 40 pound tire off will drop the pin weight by 30.
Use that now to where the tire goes on the back. Maybe only ten feet behind the center of axles. So.. 40 at 10 feet = only 20 at 20 feet.
Removing the wheel takes off 30. Putting it behind (in my case) would take off 20 more. So a loss in pin weight of 50 pounds.
Great math, BUT the tandem axles are not a great fulcrum! :S
Also is the bumper strong enough?? Mine is just back of the axles in an under carriage mount. :B
