I understand your concern since you were told by your Audi dealer something different, but bike racks are manufactured in both 1-1/4" & 2" receivers. So you are just fine, simply select a bike rack that is for a 2" receiver or use a 1-1/4" to 2" adaptor. Many bike racks such as the Thule Hitching Post Pro # TH934XTR fit both 1-1/4" and 2" Hitches. This bike rack comes with an easy-to-use adapter sleeve used to convert the 1-1/4" shank for use with 2" hitches.
Class I and Class II trailer... view full answer...
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