Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: Will this fit a fat bike (26x4" or 26x5") and/or 29+ wheel? Can the arms be bent out to accommodate 135mm spacing?
Document: I bought the 593 wheel-on rooftop carrier based mostly on reviews I read here on Amazon. While it is a quality unit that works well, I do wish the mounting screws/nuts were hidden once mounted, much like the Echelon bike carrier they make. This unit can easily be stolen as is. The other issue is the locking screw for the arms doesn't really LOCK it into either the vertical or horizontal (storage) position, it can still be pushed down/up with little force.
I really like the wheel caddies.. You can fold them down when not in use, you can move them around with the wheel in the mount to fit the bikes on the roof perfectly. It's a major upgrade from the old fixed ones.
Like the first reviewer, I got this to get the wheel out of my small car. While the mount is designed to fit perfectly to the Thule cross bars, it was notched and fit my factory rack perfectly too. Very simple, very elegant, very happy!
The wheel also cannot be locked to the carrier aside from tightening down the quick release mechanism. The only option is to use a cable lock looped through the spokes and around your rack which looks a bit cheesy. It works, but a factory fit lock would be a nice change.
The Wheel-On carrier is a helpful purchase if you don't like throwing a muddy bicycle wheel in your car after a couple hours on trails. It fits my 29 inch wheel well and it doesn't spin while driving. It fits on my Aeroblade rack fine, and appears to have a fairly universal clamping system. The big problem as others have noted is the complete lack of any locking ability.
This wheel carrier worked well to get the bike wheel out of our smallish car. It definitely worked better than an earlier model we previously tried. The wheel feels secure in the mount and does not spin around while you are driving. I would buy this product again- and I am picky.
I purchased this wheel carrier since I have the fork mount bike trays I stalled on my roof rack. It makes travel with my bike so much easier now that I don't have to store my front wheels in the trunk. Absolutely ingenious idea and another great product from Thule.
Sturdy construction. Great way to get that muddy tire out of your trunk. The only downside is your wheel is not locked to the carrier and the carrier isn't locked to the roofrack. Just something to consider if you are going to be leaving your car unattended with your bike/wheel attached for an extended period of time. For me, it's a non-issue. Inexpensive solution to help keep your car interior from getting filthy.
I agree with other posters that this product would be even better with a lock, however the product does exactly what it is intended to do and does it well, so I can't knock a star for that. I recently moved 900 miles across the country with my bike on the Thule 518 and the front wheel on this. It didn't even flinch... and this was going up to 85 mph and partly through the windy mountains of West Virginia. I also didn't hear any wind noise. Highly recommended.
I bought this item on-line. What a great product. I use these wheel forks in my 2004 Ford F150 Flare Side Pick-up. They mount to the truck bike rack. I have owned many racks through the years...all Yakima. I was a little hesitant to buy a Thule rack system. However I must say that this is a well made system and works very well. I have a Yakima on my Subaru with kayak Land Sharks and both racking systems are great.
Answer: yes