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Kuat Ubar Bike Frame Adapter Bar for Women's and Alternative Frame Bikes

Kuat Ubar Bike Frame Adapter Bar for Women's and Alternative Frame Bikes

Item # UB01
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Shipping Weight: 3 lbs
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The Kuat Ubar lets you transport a woman's or child's bike on your hitch-, trunk-, or spare-tire-mounted bike rack. The spring-loaded bar ensures a solid fit on your bike, and polymer-coated push-button hooks protect your bike's paint. 1-833-496-1390 to order Kuat accessories and parts part number UB01 or order online at Free expert support on all Kuat products. Guaranteed Lowest Price and Fastest Shipping for Kuat Ubar Bike Frame Adapter Bar for Women's and Alternative Frame Bikes. Accessories and Parts reviews from real customers.
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  • Reviews (118)
  • Q & A (0)
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  • Why etrailer?

Kuat Accessories and Parts - UB01

  • Hitch Bike Racks
  • Spare Tire Bike Racks
  • Trunk Bike Racks
  • Bike Adapter Bar
  • Kuat
  • 15 - 23 Inch Long

The Kuat Ubar lets you transport a woman's or child's bike on your hitch-, trunk-, or spare-tire-mounted bike rack. The spring-loaded bar ensures a solid fit on your bike, and polymer-coated push-button hooks protect your bike's paint.


  • Bike adapter bar lets you carry bikes with oddly shaped frames on your bike rack
    • Provides horizontal mounting point for level transport of your bicycle
  • Versatile design works with most bikes and bike carriers
    • Fits most bike frame styles, including women's, children's, and alternative frames
    • Works with single- or dual-arm bike racks that mount on a hitch, trunk, or spare tire
  • Spring-loaded tube extends for a snug fit on most bikes
  • Push-button hooks open outward to ensure quick, easy installation on bike frame
    • Hooks connect to bike's seat post and handlebar stem post
    • Soft, co-molded polymer coating prevents wear on your bike's finish
  • Sturdy steel construction with black powder coat finish ensures durability and rust resistance


  • Weight capacity: 33 lbs
  • Adapter bar weight: 2.8 lbs
  • Overall length:
    • Fully retracted: 20"
    • Fully extended: 27"
  • Extension length:
    • Minimum: 15"
    • Maximum: 23"
  • Lifetime warranty

UB01 Kuat U-Bar Bike Adapter Bar for Women's and Alternative Frame Bikes

Customer Reviews

Kuat Ubar Bike Frame Adapter Bar for Women's and Alternative Frame Bikes - UB01

Average Customer Rating:  4.8 out of 5 stars   (118 Customer Reviews)

The Kuat Ubar lets you transport a woman's or child's bike on your hitch-, trunk-, or spare-tire-mounted bike rack. The spring-loaded bar ensures a solid fit on your bike, and polymer-coated push-button hooks protect your bike's paint.


As always, etrailer was quick to ship and the package arrived a day early!! Second time I, not on purpose, ordered something on a Sunday and got a tracking number before the end of the day. Living full time on the road, this type of customer service is priceless!! Have not used this device yet but it sure looks to be my answer to a ladies framed bike on my Swagman mounted on my 5th wheel trailer.

Working just as needed. Knowing what I know now, I would not get another hanging single point bike mount. I will get a tire mount or at least the 2 point hanging mount. Regardless, this device works as described.
Tim Z - 06/22/2022


I just purchased a new bike rack for 3 bikes, two of which are women's bikes that would not as have fit properly. I'm relatively new to biking and i never would have thought about an adapter bar. The Kuat Ubar is easy to use, light fit perfectly with the rack.

The picture isn't great, but the two bikes closest to the camera have the Ubars in use.

Everything about this purchase from eTrailer has been perfect. I got a personalized recommendation (for this rack) when I submitted a question and this was easily the best online shopping experience ever. This was my first purchase here yet I was made to feel like I've walked into a store where I've been a regular for years. I'll recommend you to everyone I can!

Still very, very happy with the rack and Kuat bar. Just looking forward to getting on the trails again once the weather improves. Theres a minor tear on one of the rubber pads on the rack, but its normal wear and tear.
Jason A - 04/09/2018


Had trouble finding the right size for my wife’s bike then boom, along comes etrailor with this Kuat adapter bar. Perfect.


Kuat Ubar works great for our alternate frame hybrid bikes. This bar solves the awkward fit up with our bike rack.


A smaller carrier adapter was a bit difficult to find.The Kuat ubar adapter was just what we needed. The size and description presented on the website were very accurate, as was the guarantee of its durability: it's very sturdy and well-made.


Good quality adapter bar. Might be slightly too long for certain children’s bikes.


E trailer is awesome, I have bought two hitches from them and other accessories. This Kuat Bar is great if your bike doesn’t fit the style of the rack I also own several Kuat products and I highly recommend them!


Bought it so could haul a woman’s step thru bike on a rack with center hold down.
Easy on and off the bike, seems well made.

Works as advertised
Casey F - 05/31/2021


I was grateful to so many others who wrote reviews on this website and praised the customer service. I was looking for a trailer to haul 5 bikes including womens and kids bikes and have it work on my husbands Jeep wrangler, my daughters Subaru Outback, occasionally an RV and mainly my Toyota Sienna that doesn't even have a hitch yet. With so many options online and seemingly different products for each one, I wanted help to know if there was any product that could help me meet all me needs, so I decided to call Etrailer and get some help. They were amazing just like everyone said! He recommend the Yakima Ridgeback which would meet all our different hitch needs and the best selling Kuat Ubar adaptor bars that would make it work for our women's and kids bikes and different hitch needs. And the best surprise of all is that he told me they even carried hitch packages for my Toyota! I hadn't even expected that. The quote I received from my Toyota dealer for installing a hitch was going to cost me over $1000! But Etrailer sent me one for under $200! I am excited to get our whole family out biking more together this summer and thanks to etrailer we got everything we needed and all shipped to Alaska for only a hundred bucks in less than 2 weeks!

The man on the phone explained how my husband could install the hitch himself, but after looking at it yesterday, he decided to take it to a local shop where they can raise the whole car for the install. But that will still be cheaper than what I thought I would have to pay before.

We are planning to get the hitch on our van this week and try out the bike trailer by the weekend.

Thanks for everything etrailer!!

I really super appreciate you writing to follow up about the bike rack and other items we purchased from you guys. The accessories and hitch are working out great
Prairie D - 07/06/2018


First, thank you etrailer for your great service, communication and very quick shipping!
I recently bought my first step through bike and was alittle dissappointed when I realized I could not secure it to a car rack. I did some research and found this adapter to have very good reviews and on the lower end of the price scale. Etrailer had it in stock so I made the purchase.
As I said, super fast communication and delivery.
I had watched the video and the adapter is and does exactly as the description states.
The hooks are smooth, hard rubber and will not damage my bike. They also lock closed and unlock with a simple press of a button which makes it secure and convenient. The spring mechanism works perfectly. Just pull the bar to the length you need and it tightens itself. It feels very solid and is designed very well.
I haven't used it yet but I am confident that it will do the job conveniently and easily, right out of the box and no tools needed.

One year and still happy with my purchase! I does exactly what it is supposed to with no problems. Thanks you!
Roberta K - 06/04/2017


This handy tool is a must for a bike that is designed as a step through.


Fits and works just like it should.


The bar arrived yesterday and I already used it today. The step thru and bars on my townie are such that I was having to flip it upside down for my hitch rack. This was super easy to use and worked great. Faster & easier racking and feels much more secure on the rack.


I am glad I bought this along with my bike rack otherwise I wouldn't have been able to put my bike on the rack. I wish there would have been instructions with the bar as I didn't/don't know exactly how to use it on my bike.

If you use the provided link, you can see a product demonstration video featuring the Kuat bike frame adapter bar.
-- Etrailer Expert Mike L - 05/28/2018


I needed for my step thru bike so I could strap it to the middle bar of my bike rake so far it works well and the price was better then my local bike shop. I am pleased that it arrived earlier then expected.


I ordered three products from e-Trailer and was impressed with what arrived at my door, needing a bike rack that would hold four full size bikes I searched many different sites. E-trailer had the best reviews and descriptions of each which made my decision easy, the quality of each product showed as soon as I opened the boxes. The hitch was easy to install and looked good on the truck, the bike rack was just as easy to install and put four full size bike on. Being able to fit four bikes was a very big part of why I ordered it. We had recently upgraded all the kids to new bikes which the old rack would never have handled. As we prepared for vacation the four bikes fit nicely, it does take a little thinking of how to best lay them out but after figuring that out I was impressed with how well they fit and how sturdy the rack was. Thank you for your help in making this vacation a success.


These did not work for us. We tried using them with a Kuat rack, but could not get them to work without scratching the bike paint and mangling the teeth on the ratchet straps. We returned the rack and the adapter bars. I should also add that the cross bars on our bikes are not round, so they may be great for other bikes.


I picked this bar verses the Thule because it was less expensive and I needed 3 of them. You pretty much need them for all women's and children's bikes. However, my daughter's 20 inch bike will not fit on the Thule hanging rack with it on. It works fine on 24 inch bike and women's mountain bike. You may have to adjust the reflector lights to get it into a better position.


Great customer service!


I love the spring loaded main tube (better than the Thule and Yakima bars that I also own). I also love how the loops open outward vs. upward for both the Thule and Yakima.


I would just like to say that I could not have an easier, more efficient transaction. The process and communications were top notch.. I would highly recommend etrailer and would definitely buy from you fact based on our experience our neighbor will be ordering the same item from you. Thank you.


This is just what I was looking for. It is sturdy, well-built and having the spring action allows me to use with any size bicycle. I have an Electra Townie bike that won't fit on my car bike rack so this allows me to take my bike wherever I need to go. It's awesome!!


Very easy to use. Fits small child's bikes, 12"-20" easily. Makes loading child bikes and women's bikes much easier onto Yakima Ridgeback.
Ships quickly. My service from has been uniformly fantastic and have them used 7 or 8 times over the past 5 years.


Going from a 1993 Merc Villager to a 2013 Toyota Sienna required a whole new bike carry rack. It was suggested by the website to also purchase the Kuat UB01 bar for my hybrid bike. After fumbling with it several times (it fits loosely on the bike until it's hung on the rack and when trying to lift a 40lb bike onto a rack at shoulder height with this floppy bar on it -- frustrating) I finally dispensed with the Kuat rack and figured out that I really didn't need the bar. The bike was a foot off the ground when on the bike rack anyway. The Kuat bar did raise it higher, but due to the fact that the Sienna is low to the ground and the trailer hitch makes the distance from ground to vehicle even closer, the bike was fine with the rack I purchased. So the bar may be a good idea for some, which is why I didn't give it a "poor" rating, but was a waste of money for me.


A must when loading a woman's bike onto a bike hitch hanging bike rack.

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