Mountain bikes are axle mounted with a mount from Amazon. I can link if you need the specific one we use. Requires us to take off the front wheel and those are just tied down to the side away from all moving parts with ratcheting tie downs.
Occasionally things run up against the bikes but they are mountain bikes, so naturally have scrapes and bruising. The rub marks donít bother us and over the years we have figured out how to pack to truck so that things no longer shift around.
In our opinion, the truck cap is the way to go for bike transport if travel is full time or extended time. Otherwise exposed to elements is fine for quick trips or transport.
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