Most Popular Rack Lock for GMC Sierra 2500

I bought this bike rack because I didn't want to have to remove my bed cover every time I wanted to take our bikes on a trip. This rack works perfect because I can roll up my cover and this thing just clamps across the bed. Taking the front tire on and off is kind of time consuming but when I travel with my brother who has a hitch mount rack, it takes him just as long to unload his bike as it takes me to unload. The wheel mounts tighten easily and the bikes appear secure during long drives, so I don't worry about them coming loose. Of course, you'll want to wrap a bike chain around the bike and rack if you plan to leave them out to make sure no one can steal the bike (although it would be missing a wheel)

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I used 2 inch square tubing cut the length of the tie down support bracket in my 2007 Honda Ridgeline and secured with a stainless bolt and wing nut, use a large enough washer to cover the diameter of the supply hole in the Honda Ridgeline bracket on the truck. A couple of notes: Be sure to use something as a cushioning gasket to insure a snug fit and to protect your truck lining. I used rubber or foam exercise mat cut to the same as the aluminum square tubing. Use a washer that a combination of hard plastic and metal to avoid the corrosive effects of dissimilar metals in contact with each other. last: My 26" full suspension bike fits, but I have swing it to one side slightly before i close the tailgate and lift the bike up and slide it down....It's a very snug fit but the suspension adds pressure to the tailgate and its works out very well. Or you could just use a tailgate extender.

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rack tends to work itself loose from bed walls during long trips. had to strap down with ratchet straps to keep from moving. locks only work at a specific angle -- wish the manual had said this because we couldn't lock our bikes until figuring it out.

Excellent Customer service and help for this product. Thank you Carol and Neil your the best.