Not safe for trunk mounted rack
I used this in conjunction with the Yakima KingJoe. This adapter does the job of making a crossbeam for mounting purposes; however, it does not hold the bike enough to keep it from swaying.
When this was used on my girlfriend's hybrid bike, the crossbeam was not at the right angle, making it the front tires 3 inches from the pavement when mounted on the KingJoe. When getting off my driveway, the tire would rub the driveway. I would assume all crossbeams will have this issue though. If you must purchase a crossbeam adapter, choose another brand (maybe something spring loaded that will put more presure on the bike).
Tube works great
I found this product excellent for it's intended purpose. If you need a top bar that is sturdy - This is it!
Ok, but not ideal
I bought this for my Trek step through bike and I don't like that the bike just sits on the bar. The bike was at an odd angle on the rack and front tire hung very low. I am going to try one of the spring loaded ones so the bike isn't at an angle and so I can mount it higher on the rack. It was also expensive for what it is.
Seems to work really well
Have used this device only once so far, and it seems to work very well. It's very easy to use and attach to the bike, and seems very solid structurally. It is an absolute must have if you have a bike with an other then standard top tube. And since so many mountain bikes these days do, it essentially becomes a must have if you have a mountain bike. As well, if your cables run along the bottom of your top tube, you avoid having them pushed up against your bike and scratching the frame, not to mention stretching and then not shifting right, which they would do if you hung it from the top tube. The red ends of the device are coated with a rubbery material so they don't scratch your bike. I use this device with the Yakima Swingdaddy Rack, and its a win-win combination. I would recommend both items to anyone.
can not fit my 24" mountain bike
I purchased it on Amazon for my wife's 24" mountain bike. Even in its shortest length, it is still too long to secure between head tube and seat pole. Need to return it. Amazon needs to have much more clear description (especially working length) for this item.
This Yakima Tube Top creates a top tube for any bike without one.
Amazon.com Product Description:
Does your bike's top tube prevent you from mounting your bike properly on your rear hitch rack? Turn to the Yakima TubeTop adapter, which keeps your bike mounted solidly on single or dual mast mounts. The adapter installs directly on your bike, with one molded collar attaching to your bike stem and the other to the seat post. Once installed, the adapter's large diameter tubing and anti-rotation inserts will sit sturdily on your vehicle's hitch rack, letting you tote everything from women's frames to dual-suspension bikes.
- Handy tube adapter designed for vehicles with rear hitch racks
- Ideal for bikes with funky top tubes that don't mount properly on rack
- 1 molded collar attaches to bike stem and other collar mounts to seat post
- Large diameter tubing and anti-rotation inserts for maximum stability
- Works well with women's frames and dual-suspension bikes
