First of all, welcome to iRV2.com.

We're glad you've joined us.
I honestly don't know how anyone could give you an absolute yes-or-no answer to your question with the information provided. At the end of the day, if you decide to try it, keep a close eye on the bumper, its supports, the welds between the bumper and bumper supports and the bumper supports and the chassis, etc. Some people have used bike racks with no problems while others have experienced structural failures due to the cyclical cantilevered load hanging off the bumper.
Rusty
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Tower - 2002 Dodge 3500 Cummins HO/6 speed/4.10LS SLT+ Sport QC LB dually - not quite stock
Towee - 2004 DoubleTree Mobile Suites 36RE3 5th wheel
Travel Companions - Our Shelties, Annabelle and Coby
Come join us on a
TEXAS BOOMERS rally!