Suction Cup Bike Rack for Car Roof Top Sucker Bike Rack Quick Release Aluminium Alloy Bike Carrier with Sucker for 1 Bike

I’ve been using for 3 years and never had any issues. I’ve gone 100mph, wind, sporty driving, and no issues. Only down side would be security. I don’t like leaving my bike unattended.

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.

Good: Unit arrived we'll packaged. Suction cups come with protectors. Rear wheel Velcro strap is descent. Suctions are powerful. Bike never touched the car. Known flaw at time of purchase: Only fits old axles. If you have a newish MTB bike with the 15mm axle, you need to order a separate fork mount and alter to fit new mount. ($20). This took a few minutes but I knew that going in. Meh: Aluminum brace flex's when testing the strength of the unit by pulling slightly on the bars. Not a big deal. Sufficiently supports bike but could be stronger. This also allows you to mount it to a curved surface so I guess it's a trade off. Doesn't supply a way to secure the pedals/crank so they don't spin and hit the roof. Extra Velcro would have been nice. Bad: No washers used in construction to spread the load. Suggest adding quarter sized washers if concerned. Imo the hardware would fail before the suction cups. No release valve. Only way to get these things off is to lift an edge and break the seal. Not a big deal if mounting to glass, but would be careful if mounted to paint. Process: Put bike on fork mount while on the ground with protectors on. Secure axle. Lift bike and unit to car while removing protectors. Suction all cups. Lift rear tire and place rear tire cup. Strap rear tire. Done. At destination remove bike by breaking the seal on all cups and dismounting bike. Place unit in trunk. Overall: Legit cool way to transport a bike. No cables, hitch, vehicle alterations etc to mess with. Very low chance of vehicle damage if you are careful. Takes a couple mins tops to get on and off. 1/2 price of the 'name brand' one. Well worth your money.

I can only get two of the suction cups to suck down due to the slope of my roof. Even though I only have two suctions it still holds firm. The only reason why I got this bike rack is because the ones that attach to the trunk started rubbing and damaging my clear coat. I would say the bike holds more secure with this one than the cheaper ones that you attach to the trunk and looks less sloppy.

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.

Compared to the Seasucker, this product comes it at a fraction of the cost which makes it a great bargain. A little bit harder to take off than my Seasucker mount but overall pretty much the same. I actually like the fork mount on the Rockbros better but there is one problem. The middle sucker will not stay down and loses air much faster than any other the others. After pumping it up, 5 minutes is all it takes for the white line to show back up. Currently contacting RockBros and see what they can do about this as it seems to be a common issue and a safety concern.

That’s an excellent product! I’m a cyclist and ride regularly 3 times a week about 40mils and long rides on weekends of at least 50/100 miles. I bought a new car and decided to get the rockbros as I don’t have a fixed bike rack on the new car (and won’t be getting one :) - and it worked greatly on my last weekend ride! I drove about about 120miles to and back the event at mostly freeway speeds of 60/65mph (did not go over 70mph. I installation was super easy just make sure you clean the mount location and I did follow instructions leaving the location a bit humid after I cleaned it (according to the manual leaving it bit wet helps) had absolutely no problem mounting my road bike on it and it was surprisingly easy to take it off the roff (to be honest a bit too easy as I expected it to be much harder to take it off) but it held firmly throughout the trip and gave me all the confidence I needed no problem! Again great product quality for the price and I’m very satisfied with it. Thanks!

Holy crap! I bought a lightly used 2020 Kia Sportage, my first time buying a car on my own, and didn't think to check to make sure it came with rails. I thought it had rails until I showed up at the bike shop to buy a bike rack like an idiot. Now I had one week to figure out how to get my bike from Columbus OH to Long Beach CA on the roof, because I had too much stuff in the car for it to fit there. Bought this and installed it. It was easy to install. The first day I kept nervously checking the bike every time I stopped for gas (about 350 miles) but by the last day I wasn't worried about it. It survived freezing to the roof in Iowa - still worked. Ran out of lubricant and the back suction cup was showing white - still worked. Driving 75 mph in terrible crosswinds - still worked. Rain, snow, small hail - still worked. I don't normally write reviews but holy crap, this was such a good product. I took it out of the box, installed it, and over the next 4 days it went 2,500 miles on my roof without reinstalling it - just occasionally checked for white spots and pushed the plungers again. They've got a customer for life.

Le meilleur achat à faire pour un support à vélo facile à installer et retirer. Je suis à mon 2e le premier à duré 5 ans. Pour le prix c’est un excellent achat ✌🏻

This is amazing would recommend to anyone !!

I was actually sceptical about this system and how it would hold but it works fantastically and I have complete confidence in it now. I've even received a few compliments on the setup

Install is a bit to get used to. once you get familiar with it doesn't take to long. Only thing is its way easier to have it on the ground when putting the fork and axle through but not fully tight. Then remove plastic covers and immediately put on car position and tighten. I've Driven up to 110kms/hr on highway with light wind and going easy on turns and bumps. No issues. We'll see how long it lasts. Also wish the velcro strap for back tire could be something else. Would make me feel abit better but sturdy still. The caps for the axle are just pressure fit in the device and move when trying to fit fork on could have been threaded onto device to prevent this. Also sold separately to fit a specific thru axle. Like really making me pay another $15 for plastic circles. Good product if it lasts as it would be catastrophic if it fails

I got this because my trunk mount is a pain. It works but one of the suction cups on the main mount loses suction in about 1/2 the time of the other 2. I’ve carefully cleaned both the car and the cups with soapy water and lint-free cloths. It holds pretty solid, but I wouldn’t be comfortable driving more than maybe an hour, so not necessarily good for long trips. Update May 2025 - the same cup only holds for about 25-30 minutes before needing several pumps. The cup itself seems fine, no damage, clean so the leak must be internal to the pump. Trying to find a direct contact for Rock rod support but they don’t list one.