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Re: [A/S] Rear bumper bike racks






Jonathan.

Your 100 pound bike payload, is not 100 pounds, when you consider 
moment arm, which "MUST" be considered.

Your bumper with a small rack will be 12 feet back from the center of 
the rear axle.

Therefore, the moment arm suddenly becomes 12 times the 100 pounds, 
or 1200 pounds.

That is the weight that will be impressed on the rear of the chassis, 
but hold on to your hats, "WHEN YOUR TRAILER IS PARKED."

As you travel, the trailer is subjected to vertical movements, 
everytime you hit a bump of some sort.

Then, the moment arm "MULTIPLIES" very rapidly, for a short period of 
time.

When that happens, a normal bump will cause the weight to multiply 3, 
4 or even 5 times. Abnormal bumps will go upward from that.

So, you can see, very quickly, why your 100 pound load, can and does 
suddenly become 3600 to 6000 pounds, however momentary.

Now, it's not hard to convince oneself, that your begging for 
trouble, big time.

Bottom line, DON'T DO IT.

Andy
Inland RV Center, Inc.