Quote:
Originally Posted by xsx450
I am not looking to start a raging battle. I think the OEM hitch looks heavy duty as hell and I am sure it is a better part.
I chose to go with this hitch:
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Glad it is working for you.
Have you calculated the bending moment being applied to the hitch? When BMW publish 600 lbs tongue weight limit they specify that the maximum load distance is 8" from the pin. Your CoG would appear to be a multiple of that, hard to tell from the pictures. Not sure what your hitch manufacturer publishes as a load limit for carriers, but it shouldn't be the same as a tongue load limit.
Also, BMW publishes a lower limit for bouncing loads, 330 lbs tongue weight. They use the lower figure for non-highway, where a load isn't always constant.
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2007 X3 3.0si, 6 MT, Premium, White
Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue
Last edited by JCL; 02-05-2013 at 03:06 AM.
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