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Curt Trailer Hitch Receiver Adapter - 1-1/4" (Class II) to 2" - 6" Long
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CURT

Curt Trailer Hitch Receiver Adapter - 1-1/4" (Class II) to 2" - 6" Long

Part Number: C45785
263 Reviews | 48 Questions
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$41.89
 Hitch Adapter
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curt hitch adapter bike racks cargo carriers mounted accessories fits 1-1/4 inch
curt hitch adapter expander bike racks cargo carriers mounted accessories trailer receiver - 1-1/4 inch (class ii) to 2 6 long
curt hitch adapter expander 1-1/4 inch to 2
curt hitch adapter bike racks cargo carriers mounted accessories 1-1/4 inch to 2 c45785
curt hitch adapter expander bike racks cargo carriers mounted accessories
curt hitch adapter expander fits 1-1/4 inch c45785
curt hitch adapter fits 1-1/4 inch to 2 c45785
curt hitch adapter expander 1-1/4 inch to 2 trailer receiver - (class ii) 6 long

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0 hitch adapter curt expander fits 1-1/4 inch trailer receiver - (class ii) to 2 6 long
0 hitch adapter curt bike racks cargo carriers mounted accessories fits 1-1/4 inch in use
0 hitch adapter curt bike racks cargo carriers mounted accessories fits 1-1/4 inch c45785
0 hitch adapter curt bike racks cargo carriers mounted accessories 1-1/4 inch to 2 c45785
0 hitch adapter curt expander 1-1/4 inch to 2 in use

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Curt Trailer Hitch Receiver Adapter - 1-1/4" (Class II) to 2" - 6" Long customer photo
Curt Trailer Hitch Receiver Adapter - 1-1/4" (Class II) to 2" - 6" Long customer photo
Curt Trailer Hitch Receiver Adapter - 1-1/4" (Class II) to 2" - 6" Long customer photo
Curt Trailer Hitch Receiver Adapter - 1-1/4" (Class II) to 2" - 6" Long customer photo
Curt Trailer Hitch Receiver Adapter - 1-1/4" (Class II) to 2" - 6" Long customer photo

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Transform your 1-1/4" trailer hitch receiver (Class II only) into a 2" one with this adapter from Curt. It slides into your existing hitch receiver so you can easily carry a 2" bike rack or other hitch-mounted accessory. 1-800-940-8924 to order CURT hitch adapter part number C45785 or order online at etrailer.com. Free expert support on all CURT products. Great prices and Fastest Shipping for Curt Trailer Hitch Receiver Adapter - 1-1/4" (Class II) to 2" - 6" Long. Hitch Adapter reviews from real customers.
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  • Reviews (263)
  • Q & A (0)
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CURT Hitch Adapter - C45785

  • Hitch Expander
  • Fits 1-1/4 Inch Hitch
  • 6 Inch Extension
  • Bike Racks
  • Cargo Carriers
  • Hitch Mounted Accessories
  • 1-1/4 Inch to 2 Inch
  • CURT

Transform your 1-1/4" trailer hitch receiver (Class II only) into a 2" one with this adapter from Curt. It slides into your existing hitch receiver so you can easily carry a 2" bike rack or other hitch-mounted accessory.


Features:

  • Hitch adapter turns your 1-1/4" Class II trailer hitch receiver into a 2" receiver so that you can mount a bike rack, cargo carrier or other 2" hitch accessory
  • Extended length allows your hitch-mounted accessory to clear your bumper
  • Strong, steel construction
    • Solid 1-1/4" shank
  • Gloss black powder coat finish offers superior rust resistance


Specs:

  • Application: 1-1/4" x 1-1/4" trailer hitch receivers
    • Fits Class II hitches only
  • Receiver size: 2" x 2"
  • Maximum tongue weight: 350 lbs
  • Length: 6" from center of hitch pin hole to center of hitch pin hole
  • Overall length: 10"
  • Pin hole diameters:
    • 1-1/4" Receiver: 1/2"
    • 2" Receiver: 5/8"
  • 1-Year limited warranty


Note: Using this adapter will reduce your hitch's weight capacity by 50 percent. Do not use this hitch adapter in towing applications or for snow plow attachments.



45785 Curt Hitch Extender for 1-1/4" Trailer Hitch Receivers - 6" Long

Similar to Tow Ready 80303







Customers Who Purchased This Hitch Adapter Also Bought...



Customer Satisfaction Score:

Ratings & Reviews

4.7

263 reviews
5 Stars
(222)
4 Stars
(23)
3 Stars
(7)
2 Stars
(6)
1 Star
(5)
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by:
Heavy duty…used with a platform basket to put a rollator onto.
by:
The Curt C45785 1.25 inch to 2 inch hitch adapter seems well-constructed, but does NOT fit the current SPA Volvo OEM 1.25 inch automatic retractable hitch receptacle (mine is on a 2020 V60 Cross country). The lock pin hole doesn't go back far enough to accommodate the pin -- see photo.
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Sierra K. profile picture
Etrailer Expert

Sierra K.

11/23/2021

Thanks for the feedback. Looks like you need one a tad bit bigger like item # HTAD.

by:
Solid heavy duty steel. Fits snugly into hitch.
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William profile picture

William

9/20/2019

Works great. Easy to attach and remove. Secure mount.

by:
Really good product easy to install, fast shipping keep up the hard work thank you I will continue buying from etrailer.com
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by:
It took a bit LONG to arrive after I ordered (causing me to wonder if you were legit). But once it FINALLY arrived, yes, it performs as advertised. Let's improve that delivery Delta, shall we?
by:
Saves me some money. William in inside sales was very helpful.
by:
Sits fairly loose in the 1 1/4" hitch receiver. Also didn't come with a hitch pin, so you have to buy that separately too.
by:
This works great with my hitch to extend out behind my car and also expand to the 2” size for by bike rack. The fit was just slightly loose so I put a couple of strips of duct tape on 2 sides to eliminate the “play” inside the hitch. Works perfectly.
Mike L. profile picture
Etrailer Expert

Mike L.

9/4/2018

Please be aware that using the adapter/extender will reduce the tongue weight capacity of your hitch by half.

by:
Wish I had known that it didn't come with a pin to lock it in place, but I had one from another bike rack. Only other issue is the excessively tight fit in the receiver, but prefer that over too loose. Is a solid piece of metal and looks like it will hold up well.
Heather A. profile picture
Etrailer Expert

Heather A.

9/22/2021

It sounds like you need a 2 hitch pin for the 2 portion of this adapter. For that I recommend locking pin part # e98880 to help protect your setup. If you needed a pin for the 1-14 side of the adapter I recommend part # e98879. You can also get these keyed alike.

Helpful Links

Hitch-Pins-and-Clipsetrailere98879.html

Hitch-Pins-and-Clipsetrailere98880.html

by:
No complaints. I've only used it a couple of times as we have changed our bike rack to work with the smaller hitch, but when we do need to carry more bikes on the larger rack this adapter does the trick.
by:
While this seems to be a sturdy, well-made product, it is not the optimum set-up for a Subaru Outback equipped with a factory-installed 1.25" hitch.
Quite simply, the pin hole drilled in the 1.25" section is not where it should be. In order for it to line up with the hole in the Subaru hitch, the hole would need to be another 1.5" or so closer to the "rear". Not that this doesn't work, for it does--- but with the unit sticking out yet another 1.5" or so from the hitch. To remedy this, I drilled another half inch hole into the unit where it should be located. Now it works great, but it took considerable effort (and a $20 titanium drill bit) to get it right.
Again, this unit will work in a Subaru Outback without drilling another hole in it; it's just not optimal.
by:
The hitch adapter and 90 degree mount solved my desire to mount my electric wench on my auto trailer replacing the manual wench. See photo.

The 2" sleeve would not come out of the existing 2" receiver so I used the hitch adapter to make the transition. The etrailer experts correctly told me there would be some play in this joint. However, it works here (as this is not for towing).

I also used the 90 degree mount upside down (also not an approved application). But again no towing is involved. I did need to drill a new hole in the receiver.

by:
I purchased the Curt Trailer Hitch Receiver Adapter (C45785), the Hitch Pin 1/2" x 3 1/2 (12H), and the MaxxTow Hitch Pin and Clip with Oversize Grip - 2" Hitches - 5/8" Diameter - 3-5/8" Long (MT70053).
They arrived earlier then expected and work perfectly! The quality is better then I expected. Thank You!!!
by:
Nice quality.
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by:
Great service and speedy delivery. Have not had to use it yet because of other issues associated with new bike rack but I really appreciate the extremely comprehensive selection of hitch related items.
by:
I have a car with 2" hitch and one with 1.25" hitch. This is a great adapter and less expensive than buying two bicycle racks to fit 2" and 1.25" hitches. Adapter is short enough and fit is good enough that it doesn't wobble too much.
by:
Needed the adaptor for a bike rack and works great but with a few issues. It is does add several inches so need to be careful backing up, in parking spaces, and can bottom out (our driveway has a dip). Same bike rack on newer car did not need an adaptor and avoids these issues.
by:
Heavy steel and as pictured. The two inch interfaces very loosely compared to my other hitch with same bike rack. Rattling down the road I'll go! Also, in case you are interested the adapter DOES NOT come with a pin (That's a separate purchase and a bit of a surprise). I'm weighing the purchase of a 1 1/4" rack to snug things up as I ride daily. If so check my recycling bin for this gem.
by:
We wanted the latest part to adapt our new hitch to be able to accept a Thule bike rack. The new part is perfect.
by:
It has worked as expected for a year. I attach a bike tray rack that weights about 40 pounds and two bikes which weigh about 30 pounds each and use this on several multi-week mountain bike road trips in the southwestern U.S. I go on some rather rough roads.
by:
Great product. Perfect for my 2014 Mini Countryman S with 1-1/4" receiver paired with my Allen bike rack (2" opening). Thank you etrailer.
by:
I haven’t used my hitch adapter yet, but I can say this. E-Trailer is an excellent company to buy from, they keep you notified when shipped, and the shipping is very fast. Highly recommended.
by:
Great product from an even greater company. ETRAILER has the knowledge and products to solve most any trailering problem.
by:
Work just as expected. Easy installation and clear instructions
by:
Fit really tight into the vehicle hitch which was nice, no rattles. Also liked that is not very long preventing the basket that we placed on it from extending out very far.
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See what our Experts say about this CURT Hitch Adapter

Do you have a question about this Hitch Adapter?
  • Is There a 2" Trailer Hitch Available for a 2021 Toyota Corolla Hatchback?
    Hi Zachary, I'm afraid there aren't any 2" hitch receivers on the market for the 2021 Toyota Corolla Hatchback. Only 1 1/4" Class I hitches like the Curt Trailer Hitch part # C11567, this is largely due to the tow capacity of the Corolla, which is only 200lbs of tongue weight or 2,000lbs tow capacity. Class II and III hitches with a 2" receiver are rated for far more than what the vehicle can handle and that tends to lead to people overloading the vehicle. If you're wanting to use an...
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  • Hitch Extender for 2013 Audi A3 Hitch Scraping Curbs
    Hey Mara! For your 2013 Audi A3's hitch, you can use the CR Brophy Hitch Extender for 1-1/4" Hitch Receivers # hes6. This is the shortest extender for a 1-1/4 hitch and in turn will hopefully prevent scraping will going uphill or over a curb. The drawback with using a hitch extender is that it will reduce the carrying capacity of your hitch by 50%, so you will need to assess your hitch and make sure that using the extender won't hinder your ability to carry your bike rack. If you have...
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  • Availability of Adapter to Allow Bike Rack to Be Carried and Tow Trailer
    Sounds like you may be interested in the part # D210. This will fit your 2 inch hitch and gives you a ball mount platform down below and a hitch opening above for your bike rack. However, if you do not yet have a hitch yet, we have great news. We have the EcoHitch Hidden Trailer Hitch Receiver # 306-X7322 that has a 2" opening and a 300-pound tongue weight capacity. With this hitch, you could use the Thule Hitching Post Pro 4-bike rack # TH934XTR. I attached a video of these products...
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    Image 1 for
  • Hitch Adapter Needed For A Thule 916XTR T2 Bike Rack On A Honda CR-V With A 1-1/4" Hitch
    Hey Michael, Since your Honda has a 1-1/4" hitch you'll need an adapter like the Curt Trailer Hitch Receiver Adapter # C45785. This adapter has the shortest hitch pin hole to hitch pin hole measurement at 6" so it'd be the best option to keep the rack closer to vehicle, but it does come with some drawbacks. Hitch adapters like this would reduce the overall capacity of the trailer hitch by 50%, which typically makes a low capacity 1-1/4" trailer hitch almost unusable. You'll also want...
    view full answer...
  • 1-1/4 inch to 2 inch Hitch Expander that is Class I Hitch Compatible
    Hey Dylan, so we have the Brophy hitch expander part # HTAD which is Class I compatible but the adapter you mentioned can only be used with Class II hitches so it wouldn't work for you.
    view full answer...
  • Is There a Short 1-1/4 Inch to 2 Inch Hitch Adapter, No Longer than 4"?
    Hello Zach, Welcome to etrailer, I'm glad you found us! You said you are looking for 1 1/4" to 2" adapter, but asked it on a 2" to 1 1/4" reducer sleeve, so if you really mean a reducer please let me know. I checked our 1-1/4" to 2" hitch adapters, and I don't have one with the shorter 4" extension you're looking for. The shortest straight option I have is the Curt Trailer Hitch Receiver Adapter # C45785, which measures 6" from the center of one hitch pin hole to the center of the other...
    view full answer...
  • Do They Make a 2 Inch Trailer Hitch for a 2005 Volvo S80
    The only trailer hitch receiver they offer for your 2005 Volvo S80 is the Curt Trailer Hitch Receiver part # C12285 which has a 1-1/4" receiver tube opening. Therefore, no they do not offer a trailer hitch receiver with a 2" receiver tube opening on your 2005 Volvo S80. You can obtain a 2" receiver tube opening by using the Curt Trailer Hitch Receiver Adapter part # C45785 but please keep in mind that this will reduce the weight capacity of your trailer hitch by 50%. If you can tell me...
    view full answer...
  • Will Using a Hitch Adapter Cause Your Tongue Weight to Go Down
    Yes Ron. Anytime an adapter like the Curt Trailer Hitch Receiver Adapter # C45785 will cut your tongue weight in half. If you're talking about using two adapters, then that's absolutely a no-go because you'd create two points of failure which is pretty unsafe.
    view full answer...
  • Effects on Weight Capacity from Using Hitch Adapters
    Hitch adapters can be a convenient way to join accessories of different sizes, such as allowing use of a 2-inch hitch bike rack or towing ball mount in a smaller 1-1/4-inch hitch. An example of such an item is the Curt # C45785. The "dark side" of hitch adapters like these is that they also unavoidably reduce your hitch's capacity by 50-percent because they move the actual load that is on the hitch further away. This greater distance translates into more leverage applied to the hitch...
    view full answer...
  • Trailer Hitch Receiver For 2018 Buick Regal TourX Using 2 Bike Rack and Cargo Carrier
    The Curt Trailer Hitch Receiver # C12173 is only available with a 1-1/4" receiver tube on your 2018 Buick Regal TourX. You can use a Curt Trailer Hitch Receiver Adapter # C45785 to allow you to still use your 2" hitch mounted accessories. The adapter does reduce the receiver capacity by 50%, which would allow you to carry 175lbs with the Draw-Tite receiver. I recommend using a Roadmaster Quiet Hitch for 1-1/4" Trailer Hitches # RM-061-125 to remove the rattle in the adapter to the receiver...
    view full answer...
  • 2 Inch Trailer Hitch Receiver Compatible With 1991 Volvo 240
    For your 1991 Volvo 240, there is only one hitch available and it is not a Class III. This is most likely due to the vehicle weight capacities given by the manufacturer that would limit the hitch capacity. I know you were specifically looking for that 2 inch receiver, but the Class II with the 1-1/4 inch receiver is all that is available as a fit. If you want a trailer hitch receiver on this vehicle, you will want the Curt Trailer Hitch Receiver - Custom Fit - Class II - 1-1/4" # C12207...
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  • Difference Between Curt and Tow Ready 1-1/4 inch to 2 inch Hitch Adapters
    Realistically there isn't much difference between the two extenders you referenced aside from price. Both are extenders that go from 1-1/4 to 2 inch and are both right at 6 inches in length. If it were me I would go with the Curt # C45785 over the Tow Ready part # 80303.
    view full answer...
  • Could etrailer Anti-Rattle Hitch Lock be Used in Curt Hitch Adapter
    The Anti-Rattle lock for 2" hitches # 63232 can be used in the Curt hitch adapter part # C45785.
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  • Recommended Trailer Hitch Receiver and Towing Components for 2017 Honda Accord Sedan
    The Curt Trailer Hitch Receiver - Custom Fit - Class I # C11681 is a confirmed fit for your 2017 Honda Accord Sedan and at this time there is not a Class II hitch available. If you will be towing with this hitch, I recommend the ball mount # C45521 and hitch ball # A-80 for a 1-7/8 inch ball or # A-82 for a 2 inch diameter hitch ball. You will also need a pin and clip like # F-4 to secure your ball mount. For trailer wiring, I recommend the Curt T-Connector # C56299 which will connect...
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  • Can I Add a Hitch to a 2026 Volkswagen Jetta Sport for a Kuat Bike Rack and Utility Trailer?
    Hello Chris, Welcome to etrailer, I'm glad you found us! When I look up the specs for your 2026 Volkswagen Jetta Sport, I do not see that it has dual exhaust. I would still take a quick look underneath and confirm you only have the single exhaust. If that's the case, the Curt Trailer Hitch Receiver # C11540 is going to be a great fit. The # C11540 is a Class I hitch with a 1-1/4" receiver, so which Kuat bike rack do you have? Some Kuat racks can be converted to work with a 1-1/4" receiver...
    view full answer...
  • Using 2 Inch Receiver For a Bike Rack Versus Using a 1-1/4 to 2 Inch Receiver Adapter
    The problem with using an adapter is that it will lower the tongue weight capacity of the hitch by 50%, and also, because there will be an intermediate piece installed in between the receiver hitch and the hitch mounted bike rack, you're going to have more bounce and movement in your bike rack. Additionally, if you're using hitch locks, you'll need a You would certainly save some money by going with the Curt Class II # C12091 hitch over the # 306-X7239 EcoHitch, but you'll need to purchase...
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  • Why Does a Hitch Expanded Reduce Weight Capacity But A Ball Mount Does Not
    The Curt Trailer Hitch Receiver Adapter part # C45785 will reduce the tongue weight capacity of your trailer hitch by 50% according to the manufacturer. This same statement holds true for pretty much any other hitch adapter like this no matter the manufacturer. The reason that this will reduce your tongue weight capacity by 50% but a ball mount will not has to do with a supported vs non-supported load. If you were to place a bike rack on the rear of the vehicle using a hitch adapter, the...
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  • Does the Curt Hitch Adapter # C45785 Come with a Hitch Pin?
    The Curt Trailer Hitch Receiver Adapter - 1-1/4" (Class II) to 2" # C45785 does not come with a hitch pin. If you are in need of a hitch pin for the 1-1/4" end of the receiver, that is the # 5200. For the 2" receiver end, that is the # e98880. Both of these are locking pins in order to protect your adapter as well as your hitch-mounted accessories.
    view full answer...
  • 1-1/4 inch to 2 inch Hitch Adapter that Bike Rack with 3 inch Long Shank Fits
    I have a solution for you, but the distance from the hitch pin hole of the Curt adapter part # C45785 to the back of the hitch opening is 2.55 inches so it would not be deep enough for your bike rack. Instead we have the Brophy hitch adapter part # HTAD which has a distance of 3-1/8 inches from the pin hole to back of the hitch opening so it would be your best option.
    view full answer...
    Image 1 for
  • Flat Towing With a 1-1/4" Hitch Receiver
    I do have an option that will allow for you to use your 2017 Subaru Outback to flat tow a 1972 Volkswagen Beetle, however, none of the 1-1/4" to 2" hitch adapters are rated for towing applications. Instead, you will need to use a 2" hitch receiver like the Draw-Tite Max-Frame Trailer Hitch Receiver part # 75673 as this has a 2" receiver tube opening. You may also need a high low adapter depending on your application. In order to determine this, you will need to measure from the ground...
    view full answer...
  • How To Safely Carry Thule T2 Classic 4 Bike Rack With a 2020 Mazda CX-5
    I have another option, but using a 1-1/4 inch to 2 inch adapter like the Curt Trailer Hitch Receiver Adapter # C45785 will reduce the maximum tongue weight rating of your trailer hitch receiver by 50%. Due to the weight of your Thule T2 Classic 4 Bike you would not be able to support 4 bikes with an adapter. Your best option is to install the Curt Trailer Hitch Receiver # C13315 which has a 2x2 receiver, and installs with only the receiver being visible. I included a picture of Curt #...
    view full answer...
    Image 1 for
  • Will Trailer Hitch Adapter Reduce Tongue Weight Rating Of A Vehicle?
    You are correct that the Curt Trailer Hitch Receiver Adapter # C45785 you were looking at will reduce the capacity of your trailer hitch receiver by 50%. This will not necessarily reduce the tongue weight rating of your vehicle, as the hitch manufacturers test the hitches independently of the vehicle and have not tested the effects on a specific vehicle. With that said I would reach out to the manufacturer of your vehicle to get there input on this, but until then I would error on the...
    view full answer...
  • Anti-Rattle Option for Curt Hitch Adapter C45785
    While we do have an anti-rattle option for you, there isn't an anti-rattle hitch pin that will work with the Curt Trailer Hitch Receiver Adapter - 1-1/4" (Class II) to 2" # C45785. The best option that will reduce the rattle with this adapter is the Roadmaster Quiet Hitch for 1-1/4" Trailer Hitches # RM-061-125. This will attach to your hitch and you'll tighten the U-bolt, which in turn will tighten the adapter to ensure a quieter, rattle-free ride. I have added a link below to a video...
    view full answer...
  • Recommended Trailer Hitch Receiver For 2020 Toyota Camry To Carry Bike Rack
    I have a different option for you, but there is not a 2" trailer hitch receiver available for your 2020 Toyota Camry 2.5L Nightshade SE. Starting with the trailer hitch receiver I recommend the Curt Trailer Hitch Receiver - Custom Fit - Class I # C11576 which is the only trailer hitch receiver available for your vehicle. It has a 200lb tongue weight rating and 2000lb trailer weight rating. Depending on the weight of your bike rack and bikes you may be able to use them by using the Curt...
    view full answer...


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