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This adapter allows you to use the 1-1/4" stinger - or shank - on your Thule Doubletrack, Hitching Post Pro, or Vertex bike rack in 2" hitches. The adapter attaches to the stinger with 1 flathead screw (not included).
Features:
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Dustin: Hey everyone. Dustin here at etrailer.com.Today, we'll be taking a look at some replacement parts for Thule bike racks. I got a specific problem here today, and I want to show you on my Thule Hitching Post Pro. Now, rather than replace an entire bike rack just for some missing parts, check out our inventory of replacement parts here at etrailer. Today we're taking a look at the shank adapter.Now this is my Hitching Post Pro, but it's also going to work with your Doubletrack, your Vortex and other similar Thule bike racks. The problem I have is that because this is adaptable between inch-and-a-quarter and two-inch hitches, sometimes I take the adapter sleeve off to switch between vehicles and I've actually lost the adapter sleeve.
Not a problem. We sell a replacement part here at eachtrailer.com.What you'll want to do is you'll want to go and pick up the sleeve itself. And if you are missing the screw, that's a separate part number. We'll put that up on the screen for you. And if you want, you can pick up the tool as well, but I'll let you in on a little secret.
It's just an Allen wrench, which you probably already have at home.So it's a direct replacement. It's going to slide right into place. All you want to do is make sure that this concave portion goes on the same side that your set screw is on. You'll want to take your set screw, more than likely you're using the new one. But if for some reason your old one was chipped or cracked or something like that, you can reuse your old one.
You'll want to get it started in there and then we'll just tighten it the rest of the way down. Don't go crazy tight. Just get it nice and snug to where it's flush. You're not going to have any problems inserting this into your hitch. You're basically back to normal.
Just go ahead and get your bike rack installed like you normally would.We do have replacement anti-rattle bolt here at etrailer.com too, if that turns up missing.So just like that, I'm able to load my bike up again. And I saved myself several hundred dollars just by swapping out parts for my Thule replacement part here from etrailer.com.
Customer Satisfaction Score:
95% were satisfied with this product
5% of customers were not satisfied
Ratings & Reviews

Paul B.
4/3/2018
That hitch adapter worked great last summer with my new 4Runner. I biked more miles than any summer in the last 20 years. I was worried Id have to buy a whole new bike rack for my new car. I liked my old Thule unit, since it was all-metal and still in great shape. That product saved me money and enabled me to see 100 miles of trails along a scenic watershed that passes near my home.

Richard P.
9/15/2021
1 year later, still working as it should, no noticeably excessive wear or deterioration.

Patrick
8/9/2017
One year in and product is still working incredibly well. Going from a strapped bike rack to a trailer hitch style has worked out very well. Still very appreciative of etrailers for helping me find the piece to make this possible. Great company with excellent customer service

Clint
3/2/2018
Amazing
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Condition: Installed
Notes: Item has been previously test fitted and has cosmetic scratches from install.
Info for this part was:
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Heather A.
4/10/2026
Jennifer, thanks for sharing that, and I’m glad to hear we were able to help quickly on the front end, even though this one didn’t end up fitting. That adapter is designed for specific Thule racks, so if it didn’t line up, there’s a good chance it’s just not the exact match for your setup. We’d be more than happy to help get you pointed in the right direction. What bike rack are you currently try to fit this to?