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Replacement Bike Adapter ezHitch Cup for Thule Bike Trailer and Stroller

Replacement Bike Adapter ezHitch Cup for Thule Bike Trailer and Stroller

Item # 50103033
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Thule Hitch Adapters Accessories and Parts - 50103033
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Replaces the axle-mounted ezHitch cup for your Thule bike trailer and stroller. 1-800-940-8924 to order Thule accessories and parts part number 50103033 or order online at Free expert support on all Thule products. Guaranteed Lowest Price and Fastest Shipping for Replacement Bike Adapter ezHitch Cup for Thule Bike Trailer and Stroller. Accessories and Parts reviews from real customers.
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  • Reviews (107)
  • Q & A (0)
  • Videos (1)
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Thule Accessories and Parts - 50103033

  • Bike Trailer For Kids
  • Baby Strollers
  • Hitch Adapters
  • Thule

Replaces the axle-mounted ezHitch cup for your Thule bike trailer and stroller.


  • Replaces the axle-mounted ezHitch socket for your Thule bike trailer and stroller
  • Works with:
    • Chariot Cheetah XT (TH10100426-143 or TH10100824-144)
    • Chariot Cross (TH10202012, TH10202012-301, TH10202013, TH10202013-302, TH10202014, or TH10202014-302)
    • Chariot Lite (TH10203006, TH10203006-301, TH10203007, or TH10203007-302)
    • Chariot CX (TH220506)
    • Chinook (TH10101510-507)
    • Coaster XT (TH10101803)

1550103033 Replacement EZ Hitch Bike Adapter for Thule Bike Trailer and Stroller

Alternate part number: 50103033

Video of Replacement Bike Adapter ezHitch Cup for Thule Bike Trailer and Stroller

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Review of Thule - Bike Trailers,Strollers - 50103033

Today we're taking a look at a replacement bike adapter ezHitch cup. This unit replaces the axle mounted ezHitch socket for your Thule Coaster XT bike, trailer, and stroller. It works with trailer and stroller part number TH10101803 00:00:15. It is a direct replacement from the original manufacturer. It's made from a durable steel construction and it features a nice protective finish to keep it safe from rust and corrosion. That's going to do it for today's look at the replacement bike adapter ezHitch cup..

Customer Reviews

Replacement Bike Adapter ezHitch Cup for Thule Bike Trailer and Stroller - 50103033

Average Customer Rating:  4.9 out of 5 stars   (107 Customer Reviews)

Replaces the axle-mounted ezHitch cup for your Thule bike trailer and stroller.


Thule trailer hitch was exactly what I needed, and etrailer was the ONLY shop I could find that had it in stock. Great pricing, excellent customer service. Now my little guy can join me on my bike rides again!

I use it daily. It’s great.
Samuel - 07/23/2021


Perfect fit! Now my wife and I each have an adapter for our bike trailer.


A must have for Thule trailers like the Chariot. Having extras makes swapping bikes a lot easier. Get one (or two!)


Worked out great for my Thule chariot bike trailer!! And it was waaaay cheaper!!


Excellent. Fit onto my bike. And is so helpful so me and my husband can switch wh's carrying the trailer.


My experience was great and the Thule bike trailer hitch I purchased works great


The hitch adapter works perfectly with the previously purchased Thule axle. Fast shipping and great follow up by etrailer.


Works as advertised. High quality metal hitch. I bought it to replace the one that was on my bike that was stolen.


Ordered this from etrailer and recommend! Arrived in a timely manner and its nice to have an extra on hand to switch the chariot easily from bike to bike!


Worked for a chariot carriers caddie tct circa 2004 we've had. I didn't want to swap the hitch from bike to bike and this hitch cup works great. Thank you


The piece was exactly what I needed. Now I don’t have to remove the quick release on my bike, if my partner wants to tow our son. Fast and friendly service from etrailer, transparent and informative.


I was completely surprised that it was available when the manufacturer had none to sell. I should’ve shocked here first.


It has held up so far, no issues after a year of use.

Still working as intended
Thomas - 04/07/2022


I bought a used Thule bike trailer and the adapter for my bike was missing. I couldn’t find it anywhere for less than $60 online until I stumbled upon I paid less than $15 for the piece and shipping! I received updates about my order throughout the process. I have been very impressed by their customer service and attention to detail. Thanks for saving me money and keeping me posted!

1 year later still loving this product! Great quality and so easy to hookup and unhook the bike trailer.
Rebekka B - 07/03/2020


A perfect fit/replacement hitch for my Nashbar branded double-seated bicycle trailer.


Works with our Chariot Cougar 2 perfectly and arrived a day early. Genuine part feel safe knowing it'll hold while pulling the kids


Exactly as specified.


I received an older Chariot as a gift and I just needed the ball hitch. It fit perfect! Also, great communication via E-mail from the etrailer team with order confirmation, shipping updates, and follow up.

Fantastic. We actually bought a second!
Nicholas - 07/04/2020


Just had To enlarge the hole slightly To fit the hub on my electric bike.
I Don't understand why thule dont sell this part alone in Canada.
Thanks To etrailer

Very fine
Michel - 05/31/2020


Purchased these as an extra for my wife’s bike. Exactly the same as the one that came with my Thule Chariot.


Bought this to put on our second bike so I wasn’t the only one pulling the double thule trailer. It fits exactly like the one that came with our trailer and we haven’t had a single problem.


On-time delivery. Fits our cougar chariot 2 trailer. Easy installation on my bike!I just had a normal thru-axle.


Perfect replacement part, thanks!


Thank you for your time and efforts to get us that part. We will use it often as we train for a trip through Europe.


Great service thanks

Show More Reviews

Ask the Experts about this Thule Accessories and Parts

  • Does Replacement Bike Adapter ezHitch Cup Fit Thule Chariot Cougar 2 Stroller
    Yes it will! I checked with Thule, and can confirm that the Replacement Bike Adapter ezHitch Cup # 50103033 is a fit for your Thule Chariot Cougar 2 stroller.
    view full answer...
  • Replacement Bike Adapter ezHitch Cup for Thule Chariot Cougar 1
    I checked with Thule and was able to confirm that the Replacement Bike Adapter ezHitch Cup # 50103033 is indeed the correct replacement for your Chariot Cougar 1 Stroller as well. This is an exact replacement part and it will work perfectly. I have attached a short video review that you can check out as well.
    view full answer...
  • Replacement Hitch Adapter for Thule Chariot ezHitch Bike Trailer Stroller
    In most cases, yes; the Replacement Bike Adapter ezHitch Cup for Thule Bike Trailer and Stroller # 50103033 will be all that you need to connect your bike trailer/stroller to the quick release skewer on your bike without any other parts needed. However, if you've got a specialized hub like an Internally Geared SRAM Spectro or Internally Geared Shimano Hub, you would need a different part. If you've got one of these specialized hubs on your bikes, I've linked the parts we have available...
    view full answer...
  • Using Thule Cadence Trailer With Two Bikes
    Yes, if your bike has a quick release skewer the Replacement Bike Adapter ezHitch Cup for Thule Bike Trailer and Stroller, part # 50103033, will work with your Thule Cadence Bike Trailer. I have included a product description link and a video review link below.
    view full answer...
  • What Size Ball Can Fit the Thule Replacement Bike Adapter ezHitch Cup
    The diameter of the holder for the coupling ball on the Replacement Bike Adapter ezHitch Cup # 50103033 is 1.14" which is just over 1-1/8". The diameter of that mounting hole it 7/16" and then the overall thickness is 1/4" but that little indention looks to be about 3/16". Attached is a photo to further demonstrate this.
    view full answer...
    Image 1 for
  • How To Determine Which Ball Mount To Choose
    We have a very wide variety of ball mounts to choose from. Finding the correct one will depend on a few things though. First you will need to know the distance from the ground to the top of the inside of the trailer hitch once installed. Next, you will then need to measure from the ground to the bottom of the trailer coupler when on as even a surface as possible. The difference will tell you how much drop or rise you will need. As an example, if the trailer hitch measures 12" and the...
    view full answer...
  • ezHitch For Thule Chariot Bike Trailer With Quick-Release Skewer
    It sounds like you're looking for the ezHitch for Thule Chariot Bike Trailer # TH20100796. This will fit cycling ready, Thule Chariot child carriers that already have a hitch arm, and will install on bikes with solid and quick-release rear axles. This products includes the quick-release skewer and hitch cup.
    view full answer...
  • Availability of Replacement Wheel/Tire and Bike Connection for Thule Stroller
    I'm guessing you're needing a replacement stroller wheel and the parts used to connect it to the bike, is that right? If you have the Chariot, Cheetah or Cougar stroller, you'd need wheel # TH40102421 or for the Coaster stroller, use # 40192431. The strollers mount to the bike using a skewer mounted bracket like the once you referenced, part # TH20100796. That skewer mount works for the following stroller models: 2011 and newer Cheetah 1-child and 2-child bike trailers 2011 and newer...
    view full answer...
  • Diameter of Thule Replacement Bike Adapter ezHitch Cup
    I went out to the warehouse with the digital caliper # PTW80157 and found that the diameter of the Replacement Bike Adapter ezHitch Cup # 50103033 is 1.14" which is just over 1-1/8". This adapter is designed for the Thule Coaster XT Bike Trailer and Stroller # TH10101803 so if you have something else this may not be compatible.
    view full answer...
  • How to Install Thule Cheetah XT2 on Rear Two Nut Solid Axle
    The Hitch Adapter for Chariot ezHitch - For Bikes with Internally Geared Shimano Hubs # TH20100797 which is 3/8 by 26 and the Hitch Adapter for Thule ezHitch - For Bikes with Internally Geared SRAM Spectro Hubs # TH20110722 which is 10.5x1.0mm. These will work with the Replacement Bike Adapter ezHitch Cup for Thule Bike Trailer and Stroller # 50103033 you referenced.
    view full answer...

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Info for this part was:

Employee Tyler C
Edited by:
Tyler C
Employee Cole B
Installed by:
Cole B
Employee Matthew S
Written by:
Matthew S
Employee Matthew E
Updated by:
Matthew E
Employee Manda E
Updated by:
Manda E

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