ROCKBROSSuction Cup Bike Rack for Car Roof Top Sucker Bike Rack Quick Release Aluminium Alloy Bike Carrier with Sucker for 2 Bikes

Fast delivery AND this rack comes with rim brake spacers and it’s easy to install. I bought the 9mm skewers thinking the rack did not come with spacers which is what I read from so many reviews. Includes suction cup covers and microfiber cloth. Make sure your car surface is clean and dirt/dust free.

Ive used this multiple times to carry my trek MTB on my miata, up to 90mph and no issues. Very strong suction and secure mounting. I love this mount.

I've used this rack about 10 times since February. It works well. The only issue I've had was one of the vacuum pumps failed (I tried lubricating it, didn't help), so I had to order a replacement pump on ebay (actually I bought 2 just in case.) They're only about $12. Oddly, I don't see these for sale on the Rockbros website, only on ebay. Also, I haven't confirmed it, but the SeaSucker vacuum pumps appear to be identical and would probably work as well. Heck, they're probably made in the same factory with the only difference being the color of the indicator mark...the same probably goes for the suction cups. It's scary driving with it the first few times and I've considered attaching a leash to the bike/car just in case, but it's solid. I do get worried when I see people in other vehicles checking it out; makes me think something is wrong. They're probably just curious how the bike is attached.

Was skeptical at first but it works great. Took my stump jumper for an 80+ mph ride with no issues. Highly recommend this rack. Don’t forget to buy the adapters you will need them for most bikes. They are a must and for $10.

So I love the concept and the ease of use however the middle suction cup won’t hold a charge and after multiple attempts at relocating the cups and cleaning the cups the middle cup continues to lose suction. Unfortunately I’ll have to return this item as I don’t trust that two cups will do the trick. Amazon says co tact the seller for support, seller says contact Amazon. Since I can’t get support I’ll just return this item and get a different brand. I really was hoping this was going to be a game changer but unfortunately it’s a busy.

Skewer bent and bike fell off on first try. Upgrade the skewers or use skewer from your bike and it works fine.

These electric suction cups are great. They are pretty easy to set up, and you do not have to worry about the cups losing pressure. When they lose some, it automatically sucks air out, and the alarm is a great addition. It holds very well at high speeds (+85 mph). It fits my road and MTB bike without issues.

This rack is FANTASTIC as long as it doesn't come loose or un-suction during a long ride... time will tell on that one. So far it seems very sturdy.. .with my bike on it I can pull on my handlebars and the entire car shakes which is great! The bike does sway a bit on turns and bumps but I guess that's to be expected. My only worry is that it sways too much? The way its designed it seems that each time it sways it might actually push the suction on one side down further! As one side pull up the other is pushed down so....NOTE FOR PEOPLE WITH THRU AXEL WHEELS/FORKS - I have a 15mm x 115mm Thru axel measured at REI from post to end of threads and so I needed an adapter. When asking RockBros AND REI which measurement they are using they said the FULL length of the axel stem......... this is incorrect, the measurement is the DISTANCE between your forks or the Axel stem measurement NOT INCLUDING The threads. Needless to say my 15 x 115mm thru axel works with the 15mm x 100mm adapter. I went crazy trying to figure out if I needed a 115mm axel adapter but just decided to try out the 100mm. It obviously worked and now I can transport my bike!!Note: the manual is brief but it suggests getting the suction cups wet before mounting. This is actually a good idea and helps prevent leaks and makes the suction a tad better. You wouldn't think adding water to your suction cup would be a good idea lol...Wouldn't it make it slide? No it works well and since I suction using my read window for the fork I can actually see the bottom of the suction cups during the ride to make sure they look the same as when I started which they do.