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

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

Item # C45770
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Transform your 2" trailer hitch receiver (Class III only) into a 1-1/4" one with this adapter from Curt. It slides into your existing hitch receiver so you can easily carry a 1-1/4" bike rack or other hitch-mounted accessory. Call 800-298-1624 to order Curt hitch adapters part number C45770 or order online at etrailer.com. Free expert support on all Curt products. Guaranteed Lowest Price and Fastest Shipping for Curt Trailer Hitch Receiver Adapter - 2" (Class III) to 1-1/4" - 4" Long. Hitch Adapters reviews from real customers.
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  • Reviews (55)
  • Q & A (23)
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  • Why etrailer?

Curt Hitch Adapters - C45770

  • Hitch Reducer
  • Fits 2 Inch Hitch
  • 4 In Extension
  • 2 Inch to 1-1/4 Inch
  • Curt
  • Steel

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


Features:

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


Specs:

  • Application: 2" x 2" trailer hitch receivers
    • Fits Class III hitches only
  • Receiver size: 1-1/4" x 1-1/4"
  • Maximum tongue weight: 350 lbs
  • Length: 4" from center of hitch pin hole to center of hitch pin hole
  • 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.



45770 Curt Hitch Extender for 2" Trailer Hitch Receivers - 4" Long






Customer Reviews

Curt Trailer Hitch Receiver Adapter - 2" (Class III) to 1-1/4" - 4" Long - C45770

Average Customer Rating:  4.8 out of 5 stars   (55 Customer Reviews)

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

- C45770
by:

Product performed very well. Price was very reasonable, customer service was excellent and it was shipped and received in about 48 hours. Would highly recommend etrailer.com


Comments
no issues at all. Met expectations
Glenn W - 07/25/2021


- C45770
by:

Exactly what I needed. Thanks etrailer!



- C45770
by:

Bike rack is 1 1/4 inch and I needed this adapter to put it into my 2" hitch receiver. Adds a little distance to keep the bikes away from the back of my Jeep.


Comments
Great product. Does exactly what its supposed to do.
John H - 10/01/2020


- C45770
by:

Bought this to put into Curt hitch receiver in order to fit my bike rack. No issues and looks great. Highly recommend.



- C45770
by:

Hitch adapter is exactly what I ordered. However this review is not really about the adapter itself. It is about Etrailer.com's customer service. The adapter was shipped in the box along with a new hitch that I had ordered. The shipper somehow destroyed the box and only the hitch arrived. The adapter was lost. When I reported the missing adapter, Etrailer.com immediately shipped out a new adapter, which I received a couple of days later. Problems do happen, what makes the difference is how a company responds and takes care of the problem. Etrailer.com response and handling of the problem far exceeded my expectations and will be one of the reasons I will consider them first for any of my needs that they can supply. Bravo Zulu



- C45770
by:

My items arrived quickly and as ordered. The detailed videos made installation simple and easy to do in one afternoon.



- C45770
by:

The trailer hitch and accessories we purchased through etrailer for my wife's RAV4 Hybrid were reasonably priced, excellent quality, and have proved perfect for our needs. It's the 2nd time we've purchased a similar package from you nice folks. I've learned you're exactly the place I need to go when I need a hitch or related products. Thanks from a most satisfied repeat customer.



- C45770
by:

The 4" adapter is about right for length.......not too short and not too long. Heavy duty construction should bring longevity of use. I don't like the "slop" fit ......but imagine it has to be that way. Ordered bracket to tighten this up to stop movement of the bike rack and for other uses. Would suggest the sales force mention these brackets to make it one purchase, instead of two, if people want to tighten up the fit. The adaption from 2" to 1 1/4" for bike rack is perfect. Company sells several options for stopping the rattles and sway.



- C45770
by:

Fits, works, little loose so it’s got a slight rattle, but serves its purpose.



- C45770
by:

A bit loose fitting allowing for a bit of movement. For a bike rack that's not ideal but it still works fine.



- C45770
by:

This is the second time we've ordered from etrailer. Service is top notch - they always communicate each step of the way and delivery is fast. A couple of items were on backorder and they let me know right away and gave us suggestions of similar products, and the expected date if we chose to keep our original order. We stayed with the original order and the items came well before the date they thought it might be.



- C45770
by:

The hitch pin and clip didn’t fit the 2” receiver part to small. It needs a 5/8” x 3” to 31/2” long hitch pin. The other pin sent fits the 11/4” receiver but still to short for clip to go in. Tried to call two different days after receiving order could never get through.



- C45770
by:

Your website is easy to use. The quality of this tow bar adapter looks very sturdy and well made.



- C45770
by:

Very well made heavy duty part. Seems like it will last a long time.



- C45770
by:

Excellent Adapter for extending and attaching a Thule bike rack to a 2" receiver. More solid than a Thule sleeve, and the extensions provide ample clearance to open the SUV Rear Door.



- C45770
by:

Has worked well for me. Use it to adapt my 2 inch hitch so I can use my bike carrier. Is well made



- C45770
by:

This is just what I needed to attach my bike rack to my Curt hitch. The length is perfect!



- C45770
by:

This is a simple product that allows you to use 1 1/4 inch receiver mount in a 2 inch receiver. I'm using it for mounting a ATV winch receiver mount in the front receiver on my pickup truck. As with all steel Curt products it is very well made and seem to have powered coating to make it last a long time; time will tell.



- C45770
by:

Fits perfectly the reducer for bike rac k.



- C45770
by:

The adapter is pretty straight forward. I am writing this review because I wish I had called and spoken to someone when I first bought the hitch. I bought the hitch (no shipping charges), then realized I need an adapter. I paid shipping charges for the adapter and then realized I really wanted anti-vibration, locking pins (more shipping charges). This is no reflection on etrailer, they're great. But there is a lesson to be learned from my lack of forethought.



- C45770
by:

Did not fit snug, to loose.



- C45770
by:

I wish it were an inch or two shorter. I also had to buy a hitch clamp so the bike rack wouldn't sway.



- C45770
by:

I used this to attach hitch-mounted bike rack to a newly-installed front hitch. It takes the bike rack out beyond the bumper and grill, leaving plenty of clearance.



- C45770
by:

Purchased this when I got a new hitch from etrailer for my new car. Made sure I'm ready for any possible hitch situation, and this fit the bill perfectly. Great price, great product.



- C45770
by:

This is exactly what it appears to be. None were available locally, but Etrailer delivered within about a week of my buying.


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Ask the Experts about this Curt Hitch Adapters

  • Hitch Pins for Use with Curt Trailer Hitch Receiver Adapter # C45770
    Hitch pins are not included with the Curt Trailer Hitch Receiver Adapter # C45770. The reason they aren't is that not everyone needs a hitch pin so instead of forcing people to pay extra for a part they may not need it's offered separately. For the 1-1/4 inch portion of the adapter the pin and clip you'd need is the part # F-4 and then for the 2 inch portion you'd want the part # PC3.
    view full answer...
  • Anti-Rattle Device for 2 Inch to 1-1/4 Inch Receiver Adapter Carrying Bike Rack
    Because using an adapter like the # C45770 adds another piece to the connection between the hitch receiver tube and the hitch mounted accessory (bike rack in this instance), you will tend to get some more movement than you normally would. If you were to use a Roadmaster Quiet Hitch, part # RM-061 where the adapter connects to the receiver hitch, it would prevent movement there. If your bike rack already has an anti-rattle threaded hitch pin, you won't need to do anything about the connection...
    view full answer...
  • Recommended Solution to Reduce Hitch on 2020 Lincoln Corsair From 2" to 1-1/4"
    I have a solution for you, but I don't recommend using any adapter that extends the hitch away from the vehicle similarly to the Curt Trailer Hitch Receiver Adapter - 2" (Class III) to 1-1/4" - 4" Long # C45770 since those will reduce the tongue weight capacity of your hitch by 50%. Instead, I recommend using the Hitch Reducer 2" to 1-1/4" Trailer Hitch Receiver # HT02, which won't reduce the tongue weight capacity but will still reduce the 2" receiver down to a 1-1/4". This will allow...
    view full answer...
  • Do You Sell a 2-Inch Hitch Adapter for a 1-1/4 Inch Bike Rack?
    If you have a Yakima Buckhorn 4 1-1/4" bike rack (which is discontinued from Yakima), I recommend the Curt Trailer Hitch Receiver Adapter - 2" (Class III) to 1-1/4" - 4" Long # C45770. With this adapter, you will be able to use your 1-1/4" Buckhorn on a 2-inch receiver. It is important to note that using this adapter will reduce your hitch's weight capacity by 50 percent.
    view full answer...
  • Is There a 2" Hitch Reducer Adapter That Can Be Retracted
    I do have some great 2" to 1-1/4" trailer hitch reducers but none of them retract into itself. There are option that offer an extension like part # C45770 but these also reduce capacity. If you need the extra capacity then you'll want to use part # HT02 which is just a simple reducer adapter without extension.
    view full answer...
  • Is It Possible To Fit A 1 1/4" Bike Rack On A 2" Hitch?
    The only option we have for the 2021 Toyota Venza is a 2" hitch. If you want to keep your bike rack, I recommend you look into the Curt Trailer Hitch Receiver # C89UR. This is a USA-made hitch that is high quality and easy to install, no welding required. In order to use your 1 1/4" bike rack with this 2" hitch, using a hitch adapter such as the Curt Receiver Adapter # C45770 would be a great option. The only downside to this would be that the hitch capacity is reduced by 50%. For...
    view full answer...
  • Using Yakima HoldUp EVO for 1-1/4” Hitches on a 2” Hitch Receiver
    I definitely have some options so that you can use your Yakima Hold-Up EVO Bike rack # Y02480, but the reason Yakima does not recommend using an adapter with this bike rack is because most hitch adapters reduce the weight capacity of your hitch by half. An example of that is this Curt Hitch Adapter # C45770 that not only makes your hitch smaller to fit 1-1/4" accessories, but it also extends out by 4" if you need extra length for clearance issues. The drawback is your weight capacity is...
    view full answer...
  • Recommended Trailer Hitch Adapter Compatible with Thule T2 9045 Bike Rack and 2 Inch Receiver
    For your Thule T2 Classic 2 Bike Platform Rack - 1-1/4" Hitches # TH9045 there is not a an adapter compatible for a 2 inch hitch from Thule and they also don't have the replaceable shank to upgrade to the 2 inch receiver. The best adapter to fit your truck is the Curt Trailer Hitch Receiver Adapter - 2" to 1-1/4" - 4" Long # C45770. This will allow you to use the hitch lock that came with your bike rack and then you will use a separate hitch lock like # 63232 to secure and lock the...
    view full answer...
  • Trailer Hitch for 2020 Ford Escape Hybrid
    I am happy to help you find a hitch for your 2020 Ford Escape Hybrid. I contacted Draw-Tite to discuss the # DT92RR hitch, and they are currently researching its compatibility with the Hybrid model after discovering issues with fitment near the exhaust. I recommend you go with the Curt # C23FR hitch. It is a confirmed fit for the Hybrid and there are some helpful customer reviews showing it installs and works well on your vehicle. The Curt hitch is a 2 inch instead of a 1-1/4 which...
    view full answer...
  • Is There a Curt 1-1/4" Receiver Hitch for 2007 Hyundai Veracruz
    While I do have a solution for you, there is not 1-1/4" hitch that will fit your 2007 Hyundai Veracruz. I do, however, still recommend the Curt Trailer Hitch receiver 2" # 13545 for your Veracruz. In order to have a 1-1/4" receiver you simply need an adapter. I recommend the Curt Trailer Hitch Receiver Adapter - 2" (Class III) to 1-1/4" - 4" Long # C45770 for your needs. This will allow you to use any 1-1/4" accessories you may have. I have attached a video review of the adapter for...
    view full answer...
  • How to Use Rola Convoy with 1-1/4 Shank on 2012 Jeep Liberty with 2 Receiver
    There is not a specific adapter for the Rola Convoy # 59307 to adapt to a 2" receiver but you can use a hitch reducer sleeve like the Hitch Reducer 2" to 1-1/4" Trailer Hitch Receiver # HT02 to make the 2" hitch on your 2012 Jeep Liberty into a 1-1/4" receiver. I prefer this to an extension type adapter because it uses the existing receiver and does not extend away from the cross tube significantly, so it won't reduce your tongue weight by 50% like the # C45770 would.
    view full answer...
  • How To Transport A 60lb E-Bike On A 2013 Ford Edge
    I do have a solution for you, however, the Thule Passage 2 # TH910XT has a weight capacity of 35lbs per bike, so this will not be able to safely carry your E-bike. There is currently no trunk mounted bike carrier that is capable of transporting your 60lb E-bike. For your 2013 Ford Edge I recommend the hitch-mounted Inno Tire Hold 1 Bike Rack # INH110. This has a weight capacity of 60lbs. Since the weight of your e bike would be close to or over the weight capacity of the rack, you...
    view full answer...
  • Recommended Adapter to Use 1-1/4 Inch Hitch Accessories in 2 inch Hitch Receiver
    If you have the Curt Class III hitch, part # C13119 which is a fit for the 2012-2016 Honda CR-V and you're needing a reducer so you can use an accessory meant for a 1-1/4 inch receiver, we do offer hitch reducers that can make that happen for you. In some cases, a reducer will also provide some extension, thus increasing the distance between the vehicle hitch and the hitch mounted accessory, such as the Curt # C45770. Because that distance is increased, the capacity (both towing and...
    view full answer...
  • Thule T2 Bike Carrier Replacement Shank
    If you have a 2 inch hitch on your 2020 Mazda CX-9 and use a hitch reducer # C45770 then this shank # 753370902 for the Thule T2 # TH9045 will work!
    view full answer...
  • Trailer Hitch Options for 2021 Cadillac XT5 1-1'4" or 2" Receiver
    I do have a solution for this, while currently no one makes a 1.25" hitch for your 2021 Cadillac XT5 we can offer a Reducer # C45770 with 4" extension or # HT02 with 3" of extension. They are 2 similar options with different lengths of extension. I do recommend our Curt Hitch Receiver # C13285 as it is designed to hide behind the access panel on your Cadillac. The access panel is easily removed by 2-7mm screws. And install requires no drilling or removal of body parts besides the access...
    view full answer...
  • Hitch Pin Holes on Draw-Tite Hitch Do Not Line Up
    The Draw-Tite hitch has one set of holes for your hitch pin to go through. There is an extra hole on one side in case you decide to use the optional Tow Ready # 63201 J-pin lock set and anti-rattle device instead of a standard hitch pin. While I am not right there to see the issue, I suppose it is also possible that your bike rack has a 1-1/4" squaer shaft that you are trying to put in a 2" receiver. Most 1-1/4" bike racks come with an adapter for 2" receivers. If yours does not you could...
    view full answer...
  • How To Reduce Rattle When Using a 2 Inch to 1-1/4 Inch Reducer with Bike Rack
    I do have an option for you but all of the reducer sleeves like the Curt Trailer Hitch Receiver Adapter part # C45770 are going to be problematic in regards to excess slop at the connection point. However, what you can do to avoid this is use an anti-rattle device. The best anti-rattle devices we have are the Roadmaster Anti-Rattle devices which can be used for both the hitch reducer, and your 1-1/4" accessories. For the 2" side of the reducer you can use part # RM-061 and for the 1-1/4"...
    view full answer...
  • Two E-Bike Rack With Ramp For Class III Hitch - 2019 Ford Escape
    Thank you for your feedback! I've got a solution for you. While we offer quite a few hitch racks that are compatible with your e-bikes, it sounds like a ramp is pretty important to you, which narrows the field a bit. While I don't have the complete specs of your trailer hitch, it's likely that you have a Class III hitch installed on your 2019 Ford Escape with a 2" receiver, with a tongue weight capacity of at least 300 lbs. The Yakima # Y36FR bike rack comes with that ramp you're...
    view full answer...
  • Recommended Hitch for 2021 Volkswagen Tiguan SE With No Holes or Bolts in Side Frame
    Your 2021 Tiguan SE should have holes in the side frame, it is the weldnuts that have been reported missing on some models. I recommend completely avoiding this with the Stealth Hitches Hidden Rack Receiver - Custom Fit - 2" # SH49ZR. This custom fit hitch uses a different installation process so the lack of weldnuts will not be an issue. The Stealth Hitch replaces the factory reinforcement beam on the back of your vehicle. The hitch has a tongue weight of 350 lbs and is only for hitch...
    view full answer...
  • Recommended Adapter for Installing 1-1/4 Inch Hitch Accessories in 2 Inch Hitch
    Anytime a hitch accessory is left in a receiver for an extended period of time, you'll run the risk of the hitch and the shank of the accessory or the adapter corroding over time and becoming rusted together, which is why we don't typically recommend leaving hitch mounted accessories installed in the receiver when they're not being used. Applying some grease to the shank of the hitch accessory and the shank of the adapter will go a long way toward preventing this from occurring, but I'd...
    view full answer...
  • Which Trailer Hitch Receiver With Hidden Crossbar For 1 1/4 Bike Rack On a 2016 Toyota Sienna
    I have another option but the 1 1/4 inch trailer hitch receivers for your 2016 Toyota Sienna do not have hidden crossbars. My recommendation is to use the Draw-Tite Max-Frame Trailer Hitch Receiver # 76112 which has a hidden crossbar but a 2x2 receiver. You can then use a trailer hitch adapter like the Curt Trailer Hitch Receiver Adapter # C45770 to convert the 2x2 receiver to a 1 1/4x1 1/4 so you can still use your Kuat Bike Rack. Using a trailer hitch adapter will reduce the maximum...
    view full answer...
  • Does the Yakima Hold-Up 2 and Yakima Two-Timer use the same tongue assembly?
    Unfortunately the tongue of your Yakima Two-Timer is different from your Yakima Hold-Up 2, so they cannot be interchanged. I have included pictures below that show the difference. Your best option is two get the Yakima HoldUp EVO bike rack, part # Y02480. It is an 1 1/4" bike rack that can hold all sized bike tires. Then you would get a the Curt Trailer Hitch Receiver Adapter, part # C45770, This will reduce your 2" hitch receiver to an 1 1/4". It will allow you to put your rack on each...
    view full answer...
    Image 1 for Image 2 for
  • Using an Adapter on a 2 Hitch for a 1-1/4 Boone Outdoor Tailgate Table on a 2018 Ford Edge
    You can indeed use a hitch adapter to pair a 1-1/4" accessory like the Boone Outdoor Tailgate Table, part # BH70114, with a 2" receiver. Using an adapter reduces your tongue weight by 50%, so remember that if you plan on towing heavier accessories with a 1-1/4" shank. If you are worried about sway, then you need an adapter that has a shorter shank. I recommend the Curt Adapter, part # C45770. It only has 4" between the center of one hitch pin hole to the other. I've linked to a video...
    view full answer...

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