Here’s a great little accessory that a lot of people who are getting into transporting bikes may not know that they ever needed. It’s a simple design and concept, and works really well for what it does. I never knew what one was until I needed one. I had a traditional mast-style hitch rack and my wife had a small full-suspension mountain bike. The geometry of the bike made it super-awkward to get the thing on my rack. If you are ever driving around and see someone’s bike on their rear rack and it’s tilted in some really unnatural way, that person needs a Yakima Tube Top adapter. It fastens from the seatpost to the top tube below the stem and creates an accommodating top tube that can be attached to most mast-style racks. Otherwise, the funky geometry of not only smaller full-suspension bikes, but also step-through style and even junior/girls bikes with more sloped top tubes will make it virtually impossible, and likely unsafe, to attach your bike to the arms of the rack. If you’re looking for this accessory, it’s likely that you need it, and I always like when companies get to engineer products like this to make it easier to transport bikes.