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  • Yakima Tube Top Frame Adapter
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YakimaTube Top Frame Adapter

Item # YAK0021

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Item # YAK0021

Tube Top Frame Adapter

The Yakima Tube Top adapts bike frames without top tubes so they fit Yakima ROC or GetAway bike mounts. The Tube Top creates a top tube for any bike that doesn't have one, including children's bikes, women's bikes, and Y frames, or casual beach cruisers. It does so with a simple connection that secures to the seatpost, and headtube to create a bar that braces across, allowing a top-tube free bike to mount on Yakima's ROC or Getaway mounts.

  • Create a top tube to increase compatibility
  • Molded collars hold frame securely yet gently
  • Anti-rotation inserts stabilize the bike
  • Expands compatibility for ROC or GetAaway mounts
  • Designed for children's, women's or Y-frame bikes
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Durable, Easy to Use Tube Top Adapter

  • Familiarity: I've used it several times

Out of the box easy to use. There's some weight to it that leads to its durability. I use it on my MTB to easily store on an Art of Storage wall hanger and to transport on my Swagman hitch mount. Adjustment by a telescoping tube (non-locking) to fit my bike frame size (My effective top tube length is 23").

Hang em High

  • Familiarity: I've used it several times

Very sturdy and are a great option for the frame hanging bike racks. They could even be used to hang the bike on a wall rack for storage.

Great adapter!

    Easy to get on and off and works with both my road and mountain bike on my car! Awesome little invention.

    Top tube adapter

      I bought this for a cross country trip to use with my mountain bike and it works as advertised. It allows for me to use all of my bikes with my trunk rack.

      Works Perfectly

      • Familiarity: I've used it several times

      Super easy to get on and off your bike! It is a bit on the heavier side, but it's also super durable. I see this lasting a long time!

      Works as described

      • Familiarity: I've used it several times

      This works really well with my mountain bike. Easy to work with and heavy duty.

      End attachment detail

      Once looped around the bike tube, the gate swings down and the brass button engages to hold in place. To release depress the brass bottom and lift gate. Pretty solid.

      End attachment detail

      Heavy Duty

      • Familiarity: I've used it several times

      I mean seriously heavy. It does the job but I doubt that it had to weigh that much. It would be better if there was some way to fix the length so it wouldn't move after it is attached. Not that that affected the end result but it was a bit annoying.

      Does it's job

      • Familiarity: I've used it several times

      Makes getting non-standard framed bike a breeeeeeeeze to get on and off the rack. Its simple and easy to use.

      Unanswered Question

      I'm looking for an adapter for my child's...

      I'm looking for an adapter for my child's bike. What is the shortest span from seat to handlebars that the adapter will work with?

      Yakima Tube Top Frame Adapter

        Broomfield, Co.
        Heavy duty construction, looks good(as if that really matters!) easy to use and bottom line is perfect for what it is designed to do! Enough said!!

        will this product work with the yakima...

        will this product work with the yakima quick back 2?

        This essentially gives your bike a top tube, which is what you need to put it on the quickback2, so it will work. Hope this helps!

        It works

          It is always a little unnerving to throw your multi-thousand dollar investment onto a $35.00 piece of plastic/composite/whatever, especially when the maiden voyage involves 80mph speeds on a windy freeway. However, this little bar got the job done! It does hold the top tube of my bike a little too close to the rack arms itself (has caused some scuffs to my steed), which I don't like..this is probably the only reason I gave it a 4/5. That might be my racks fault though, as it is a home made hitch rack and isn't designed as well as Yakima or Thule makes them. There is no locking mechanism on the telescoping part of the tube top, but it stays steady somehow. There are pins on the ends which keeps your seat post and handle bars from slipping out the side. I have read a few reviews online which say that you need to make sure your seat post is all the way tightened, or else your bike might fall off the rack. I have kept mine tight so far and have had no problems whatsoever, but for everyone reading this..keep that fact in mind.

          P.S. my horizontal top tube length is 22.5 inches, and this fits fine with tons of room to spare.

          Yakima Rules

            I shopped all around the net and couldn't find this item at a lower cost than BCS. When it arrived I was stunned at the quality of materials and workmanship! This is one tough adapter. Its cost is justified. I tried it on my son's 20" bike -- a V frame, and it fit wonderfully. It telescopes and should fit any frame you can throw at it.

            Tube Top Frame Adapter

              Works on alot of bikes but not all. I am glad I got it. It makes loading my girl's bike a lot easier. Solid craftsmanship.