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Curt Adjustable Cable Lock - Steel - 6' Long

Curt Adjustable Cable Lock - Steel - 6' Long

Item # C23666
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Curt Keyed Unique Cable Locks - C23666
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Use this cable lock to secure your gear. Great for locking your bike to your rack. Push the button on the lock assembly to automatically cinch the cable around your gear, eliminating slack. Vinyl-coated braided steel construction. 2 Keys included. Call 800-298-8924 to order Curt cable locks part number C23666 or order online at etrailer.com. Free expert support on all Curt products. Guaranteed Lowest Price and Fastest Shipping for Curt Adjustable Cable Lock - Steel - 6' Long. Cable Locks reviews from real customers.
  • All Info
  • Reviews (7)
  • Q & A (15)
  • Videos (1)
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  • Why etrailer?

Curt Cable Locks - C23666

  • Curt
  • 6 Feet Long
  • Utility Lock
  • Keyed Unique
  • Steel

Use this cable lock to secure your gear. Great for locking your bike to your rack. Push the button on the lock assembly to automatically cinch the cable around your gear, eliminating slack. Vinyl-coated braided steel construction. 2 Keys included.


  • Cable lock secures your gear to your bike rack, roof rack, cargo carrier, and more
  • Automatic cinching lets you tighten the cable snuggly around your gear quickly and easily
    • Insert the cable into the lock assembly and press the red button to tighten the cable
  • Braided steel construction is strong and difficult to cut
  • Vinyl coating prevents the cable from scratching your equipment and provides corrosion resistance
  • 2 Keys are included


  • Cable dimensions: 3/8" diameter x 6' long
  • 1-Year limited warranty

This cable lock not only helps prevent theft of your gear, but it also cinches tightly around your gear to help keep it immobilized during transport. The lock assembly lets you adjust the cable to your desired length, pull it tight, and secure it in place - similar to how a buckle works on a tie-down strap. Simply thread the cable through the lock assembly and press the red button to quickly and easily cinch the cable around your bike, cargo, sports equipment, or other gear. Then insert the loose end of the cable into the port on the lock assembly to secure the cable. When you're ready to unload your gear, just use one of the 2 included keys to unlock the cable from the port, and then release the tension on the cable by pressing the red button.

23666 Curt Heavy-Duty, Multi-Use Security Cable - 6 Foot

California residents: click here

Video of Curt Adjustable Cable Lock - Steel - 6' Long

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

Video Transcript for Curt Adjustable Cable Lock Review

Today we're going to take a look at the Curt Adjustable Cable Lock that's 6 feet long. Part number C23666. This cable lock features a nice, braided steel construction that's going to protect the finish on anything that you're locking. It features this nice virtual lock cable system. You take the end of the cable lock and it goes in, locks the cable to this heavy duty lock. It does come with two keys.

Let's put those in there. Unlock the cable, that will come out. It does feature a hoop on one end so you can go ahead and feed your lock cable through there to secure your items. The unique thing about this lock is once you have it locked into the lock core, you can push the red button down and cinch the cable tie and that will secure whatever item you have locked down to keep it from rattling around. Such as a ladder on a utility trailer, a bike on a bike rack or what other items you may be carrying. Now I'll go ahead and show you some applications where you can use this unique lock system. A good application for this cable lock is you can secure your bike onto your bike rack.

What I like to do is go ahead and take your hoop end, put that around your tire. You can feed the cable into it. That'll secure your bicycle tire to your bike frame if you have a quick skewer axle on there. Then you can go ahead and take the cable, put it around your bicycle frame, go ahead and feed that back to the backside of your bike rack. You're going to go ahead and take your cable lock, feed it through your lock as so.

You slide it down the cable a little bit. Go around your bike rack and back into itself, securing it to your bike rack. You have your bike tire secured to your bicycle, through the hoop, you have your bicycle secured to the rack here with the rest of the remaining cable. You can go ahead and cinch it down to add some stability to your bicycle here to keep it from swaying around so much while you are going down the road. That's one of the neat features about this locking system. You can press the red button and cinch it as tight as you need it.

As you see, the nice rubber coating on the steel cable will protect your finish on your bike. Another application for this cable lock is if you do need a portable one for your bicycle, you'll go ahead and wrap it around your frame once you're not using it. Once you get to a stand where you need to lock it into place, you go ahead, put around your bike. You can feed the end of the cable lock through the hoop and, again, you can go through the tire again. Through the rack, feed your cable again through there. You can even go back around the cable, if you like. Lock it. Again, you can cinch it tight if you need to. That'll secure your bicycle to the rack so nobody can take your bike or your tire. Another application for this, if you want to put two bikes together, you can go ahead and feed your lock here through the middle of your cable. Go around your bike, around the bike rack. You can go ahead and secure it like that. You can see it allows you to have double loops in it to secure more than one bicycle or if you have more than one ladder or any other cargo that you're carrying either on your trailer, on your bike, on your bike rack, or even on the roof rack of your vehicle if you want to keep it secure to your vehicle. As you can see, there's a ton of uses that this Curt Adjustable Cable Lock will come in handy for. That will do it for our look at the Curt Adjustable Cable Lock, 6 foot long, part number C23666. .

Customer Reviews

Curt Adjustable Cable Lock - Steel - 6' Long - C23666

Average Customer Rating:  4.9 out of 5 stars   (7 Customer Reviews)

Use this cable lock to secure your gear. Great for locking your bike to your rack. Push the button on the lock assembly to automatically cinch the cable around your gear, eliminating slack. Vinyl-coated braided steel construction. 2 Keys included.

- C23666

This lock is the best! It is extremely versatile and yet gorilla strong. Easy to install and remove. I highly recommend it. 728149

- C23666

Simple to use and does what it should. 724761

- C23666

We are very happy with the Yakima Ridgeback2, along with the Yakima Tube Top Bike Adapter for my wife's Step-Thru and the Curt Adjustable Cable Lock for unattended safety. Ease of attachment to our vehicle takes approximately 3 minutes. Very solid choice of purchase. Excellent service from etrailer for ordering and immediate shipping and delivery. 424498

- C23666

Allows locking bike with variety of cable lengths. Convenient and locking mechanism works easily. Great product. 654712

- C23666

Great product that has kept my boat safe and sound! 614186

- C23666

I plan to use this product to lock al the bikes on the rack together while driving to the beach, or parks 543547

- C23666

Very versatile and many possible applications. Great quality!. Can be used with confidence on bikes, rv batteries, rv surge protector and a host of other functions. Long length makes it easy to utilize. 404559


Ask the Experts about this Curt Cable Locks

  • Recommended Lock For Curt Bike Rack & Hitch
    Manufacturers of hitch accessories such as bike rack and cargo carriers make the threaded bolts and weldnuts in the accessories uniquely threaded so that you cannot use other manufacturer's products. For example the Swagman lock # S64027 will not fit the Curt Premium 4 Bike Rack for 2" Hitches # C18064. To lock the bike rack to the hitch I recommend using Curt Adjustable Cable Lock # C23666. You would just need to route the cable through the bike rack and then through the safety chain...
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  • Recommended Trailer Hitch Receiver Compatibility with Curt 3-Bike Rack
    All standard 2 inch trailer hitch receivers have the 5/8 inch hitch pin. The Curt Premium 3 Bike Rack for 2" Hitches - Tilting # C18063 will fit that receiver well and comes with an anti-wobble hitch pin that is threaded to perfectly fit your receiver and bike rack. I recommend the Curt Adjustable Cable Lock - Steel - 6' Long # C23666 to further secure your bikes to the rack. You may also want to consider the Swagman Deluxe Bike Frame Adapter Bar for Women's, Children's, and Alternative...
    view full answer...
  • Using a Stabilizer Strap with a 2017 Mini Clubman 2 Door Hatch
    Curt does require use of a stabilization strap for their Class I Hitches. Normally, you'd use a Stabilizing Strap like part # 18050 but like many hatchback vehicles, you're running into a simple problem that is easy to fix. For this, you'll want to purchase part # Y02612 , a set of Yakima Glass Hatch adapters. This part will give you an alternate location to hook the stabilizing strap to that will evenly apply pressure to the padded security bar, removing the need to mount the support...
    view full answer...
  • Distance Between Arms of Curt 4-Bike Rack 18064
    I can confirm for you that the distance between the arms of the Curt Premium 4-Bike Rack # C18064 is 14 inches at the wide end and 8 inches at the narrow end. You can also see this at roughly the 2:10 mark of the linked video review I added for you to check out. Keep in mind if you do plan on carrying any children's or alternative-frame bikes (with a step-through frame, for example) you will need Curt Bike Frame Adapter Bar # C18016 to give those bikes a horizontal mounting point. Additionally...
    view full answer...
  • Recommended Anti-Rattle Trailer Hitch Receiver and Lock Compatible With Curt Bike Rack
    The Curt 2 Bike Platform Rack # C18085 comes with the threaded anti-rattle hitch pin, but it does not have a locking option for that rack. There isn't a locking hitch that fits that pin, so I recommend using a cable lock like # CAB-10 or # C23666 and running the cable through the safety chain loops of the hitch to secure the bikes and the rack.
    view full answer...
  • Is there a Locking Anti-Rattle Hitch Pin for Curt Platform Bike Racks
    Curt bike rack 18086 does not have a locking anti-rattle hitch bolt option. What we recommend is to use the regular hitch bolt and then use a cable lock, # C23666, to secure the bikes and rack to the hitch by running the cable through the hitch safety chain loops. I have linked a video review of this cable lock for you.
    view full answer...
  • Why is the Rhino-Rack 2 Bike Rack # RRRBC045 Not Compatible with a Motorhome
    Since the rear axle is located much further away from the trailer hitch on a motorhome as opposed to a passenger vehicle some bike rack manufacturers have said that certain bike racks are not compatible. This is due to the extra movement and stress caused by the further distance from the axle. If you really like the Rhino-Rack 2 Bike Rack # RRRBC045 but want to use it on a motorhome then I recommend taking a look at the popular Thule Roadway # TH912XTR. This has the same tilting and...
    view full answer...
  • How to Lock Curt 2 Bike Platform Rack for Fat Bikes C18085-FB
    Curt's 2 Bike Platform Rack for Fat Bikes # C18085-FB includes an anti-rattle threaded hitch pin that will reduce motion of the rack in your hitch but this feature prevents use of a standard hitch lock. No worries though since you can use a simple cable lock such as # e98891 (10-foot) or # C23666 (6-foot) to both lock your bikes to the rack and also to lock the rack to your hitch receiver by running the cable through a safety chain loop on your hitch. If you prefer a 2-bike Fat Bike...
    view full answer...
  • Are There Hitch Lock Options for Curt Bike Rack?
    I spoke with a representative of Curt, who informed me that apart from the SportRack, # SR0901, which you mentioned, there are no other locks that will work with the Curt # C18086 bike rack. If you are concerned about security, there are some measures you can take, starting with a highly visible one, the Curt Adjustable Cable Lock, # C23666. For a more specific fit, you can use the Locking Hand Knobs for Curt 4 Bike Platform Rack, # C18090-2. They replace the existing knobs on the Curt...
    view full answer...
  • Lock Options for Use with Curt 4-Bike Tilting Hitch Rack C18030
    We offer Curt Adjustable 6-Foot Cable Lock # C23666 for use with your hitch bike rack # C18030 but really any cable lock will serve to secure your bikes to the rack and even secure the rack to your hitch. The cable lock # e98891, which is 10-feet, should provide enough length to allow you to route it through each of the bikes, and also through the small ring on the upright tube. You can then secure the rack and bikes to the hitch with the one cable lock. If you prefer you can certainly...
    view full answer...
  • Recommended Hitch-Mounted 2 Bike Rack for 2017 Toyota RAV4
    For a hitch-mounted bike rack to transport your two bikes with your 2017 Toyota RAV4, I recommend looking at the Swagman Chinook 2 Bike Platform Rack # S64683. This is a great bike rack that has a similar platform-design to the Swagman # S64650 referenced in your question but with a weight capacity of 45 pounds per bike. This particular rack has a few really nice features, such as its ability to tilt down with the bikes still loaded for easy rear cargo access and the included, built-in...
    view full answer...
  • Recommended Curt Bike Rack for 2 Cruiser Bikes On Truck with 2-1/2 Inch Trailer Hitch
    The Curt Premium 3 Bike Rack for 2" Hitches #C18063 and the Curt 2 Bike Rack for 1-1/4" and 2" Hitches - Tilting # C18029 are rated similarly for each bike being up to 45 lbs. Because you have a 2-1/2 inch trailer hitch receiver on your Sierra 2500 which is factory size, I recommend using the 3 Bike option due to the larger shank size. To make this compatible the sleeve you were given with the hitch will not work. You will instead need to use a hitch reducer that has an extender like...
    view full answer...
  • Installing the Curt 2 Bike Platform Rack
    The Curt 2 Bike Platform Rack, part # C18085 is a fairly easy install. To install it, you'll simply insert it into the receiver, then secure it with the included anti-rattle bolt using the included tool. I do recommend getting a full sized ratchet though, as it will install the bolt much faster than the included tool. I've attached a video review of this rack, and at about the 3:20 mark, you can watch one of our reviewers putting the rack onto the vehicle so you can get familiar with...
    view full answer...
  • Parts Needed to Install Curt Bike Rack on a 2012 Nissan Versa Hatchback
    The most essential thing you will need to carry the Curt bike rack part # C18085 on your 2012 Nissan Versa hatchback is a trailer hitch. Which the Draw Tite hitch part # 24798 is a confirmed fit and would work well for this. For locking hand knobs for the rack you would want the part # C18090. For a cable lock to lock the rack to your hitch you would want the part # C23666.
    view full answer...
  • Will a Swagman XC 2-Bike Rack Platform Style hold a 650bx3 or 27.5x3 wheel size bike?
    If your tires measure 3-1/2 inches wide or less, then the Swageman XC 2-Bike Platform Bike Rack, # S64650, will work with your bikes. The Swagman can carry up two bikes and and has a weight capacity of 70lbs ( 35lbs per bike). This bike rack is a frame mount bike rack the uses telescoping hooks to mount your bikes to the rack. If you have special frame bikes, like carbon fiber, then you will want to look at wheel mount bike racks. I recommend the Let's Go Aero BikeWing 2-Bike Rack,...
    view full answer...

Do you have a question about this Cable Lock?

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Info for this part was:

Edited by:
Lindsey S
Video Edited:
Jacob T
Written by:
Chelsea B
Updated by:
Kristina F
Updated by:
Isabelle B

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