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Thule Ride-On Adapter - Factory Roof Rack to Thule Bike Rack Adapter

Thule Ride-On Adapter - Factory Roof Rack to Thule Bike Rack Adapter

Item # TH532
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Adapts factory installed roof racks to work with Thule roof top bike racks. The Ride-On clamps around the wide factory load bars and provides a smaller, secure attachment point for Thule bike racks. Call 800-298-8924 to order Thule accessories and parts part number TH532 or order online at etrailer.com. Free expert support on all Thule products. Guaranteed Lowest Price and Fastest Shipping for Thule Ride-On Adapter - Factory Roof Rack to Thule Bike Rack Adapter. Accessories and Parts reviews from real customers.
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  • Reviews (10)
  • Q & A (56)
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Thule Accessories and Parts - TH532

  • Roof Rack
  • Adapters
  • Thule
  • Ride-On Adapters

Adapts factory installed roof racks to work with Thule roof top bike racks. The Ride-On clamps around the wide factory load bars and provides a smaller, secure attachment point for Thule bike racks.


  • Strong, level load bars create an ideal platform for bike carrier mounting.
  • Universal mounting hardware clamps easily to existing, factory installed luggage rack.
    • Tamper resistant hardware provides security.
  • Works with Thule's Criterium, Big Mouth, V2, Velo Vise, Echelon, Peloton and Long Tray Classic fork mount carriers.


  • 2 Bike rack capacity
  • Includes two 32" x 1-1/4" load bars
  • Will work with the following Thule carriers:
    • TH598 - Thule Criterium
    • TH599XTR - Thule Big Mouth
    • TH518 - Thule Echelon
    • TH517 - Thule Peloton
    • TH517 - Thule Peloton Long Tray
    • TH516 - Thule Prologue
  • Will NOT work with the following Thule carriers:
    • TH594 - Thule Sidearm
    • TH558P - Tandem Carrier
    • TH597 - Super G
  • Designed for use with most factory installed luggage racks.
  • Maximum crossbar dimensions: 3-1/2" x 1-1/2"
  • Weight capacity: 165 lbs

Thule Ride-On Rooftop Bike Rack Adapter

Factory installed roof racks typically have larger load bars (those that run from the driver's to passenger's side of the vehicle). The Ride-On adapter has extra wide mounts so that it can be clamped to the larger load bars. The adapter then provides Thule standard load bars that allow for easy attachment of Thule roof mounted bike racks.

Create more bike carrying options for your vehicle with a bike rack adapter that fits factory installed roof racks, whether on your car, van, or SUV. The versatile design of the Ride-On provides a stable and secure load carrying system to support a roof mounted bike rack as well as enabling almost any bike carrier to be installed to the existing load bars on your vehicle.

ride on adapter with Critium bike rack

Pictured is the Ride-On Adapter with the TH598 Criterium Bike Rack.

532 Thule Ride-On Adapter - Factory Roof Rack to Thule Bike Rack Adapter

TH532 Installation InstructionsInstallation Details TH532 Installation instructions

Video of Thule Ride-On Adapter - Factory Roof Rack to Thule Bike Rack Adapter

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

Video Transcript for Thule Roof Rack TH532 Review

Today we are going to cover part number TH532 from Thule. This is Thules Ride-On Adapter, and what this device basically does is, it converts your existing roof rack from the factory to be able to use a variety of different Thule products on your roof rack. Basically, what this adapter does it, it actually stacks on top of your existing crossbar. This has to have the factory rack. It also has the bars going from left to right. It also comes with a special torque bit, here. This actually has a security bit that actually has a hollow point so not a regular torques bit can get in there and undo it, so you have a level of security built in right there. Now I will go ahead and just put this on a factory roof rack and give you a better idea of how it looks and how it works.

All right, let us go ahead and install one of the adapter bars. It is pretty simple. Get it on top of your factory roof rack crossbar here and get it even. And you simply take one of the clamps and put it on the bottom and screw it into place. All right, and with that your roof rack is ready to go with virtually any Thule accessory out there. And there you have it for part number TH532 from Thule.

Customer Reviews

Thule Ride-On Adapter - Factory Roof Rack to Thule Bike Rack Adapter - TH532

Average Customer Rating:  4.9 out of 5 stars   (10 Customer Reviews)

Adapts factory installed roof racks to work with Thule roof top bike racks. The Ride-On clamps around the wide factory load bars and provides a smaller, secure attachment point for Thule bike racks.

- TH532

Attached are photos of the rack mounted with two Thule bike racks. I used some 50 inch Thule crossbars instead of the provided 32 inch crossbars. I can mount three Thule bike racks or two bike racks and a ski rack by going to the longer crossbars. Using the longer crossbars has enabled positioning the two bike racks closer to the outside of the car's roof making the bikes much easier to mount and dismount from the racks. I'm not worried about changing to a longer crossbar because the weight to be carried (usually just two bikes) is still the same. I love the product, but I don't think you can use the photo as the kit comes with the shorter bars. Maybe you could suggest to Thule they provide an option to substitute longer crossbars. 528182

Sold the car mentioned in earlier review, but am still using Thule cross bars, Thule bike and Thule ski racks on my current vehicle. In my experience Thule products are better quality and more durable than main competitors bike and ski racks which both failed over time - and were not supported by that manufacturer with repair parts.
John M - 06/28/2019


- TH532

Great product. Great service!! 657747

- TH532

works great. I have only used it for snowboards and skiis so far. very sturdy. I would buy again. 601602

- TH532

Outstanding product. Super fast delivery. Exactly as explained in description. Couldn't be happier with the priduct. 480168

Product is fantastic! Id recommend Thule for all your bike rack needs.
Timothy - 03/02/2019


- TH532

Great to use an older Bicycle rack with the smaller mount 445582

- TH532

The existing Thule rack was still serving the purpose, but after being transferred across 3 vehicles and almost 20 years of service, was showing it's age (i.e. sun-faded plastics, and surface rust on the square bars) For a terrific price and a 2-day wait, I now have the exact same rack setup...ready for another 20. 370530

- TH532

The TH532 was able to add years onto my Thule Pelotons. Etrailer came through with the parts necessary to make my older stuff work with my new Subaru Outback. 358116

- TH532

fits suburu rack--bars are short 32 inches.. haven't put bikes on it yet but it seems sturdy 167223

- TH532

Works great for a couple of bikes, but I wish Thule provided the option of different bar lengths. 36" would have allowed me to carry my canoe 58765

- TH532

worked just fine 30566


Ask the Experts about this Thule Accessories and Parts

  • Adapter to Attach Thule UpRide Roof Bike Rack TH599000 to Yakima Roof Rack System
    The Thule UpRide roof-mount bike carrier # TH599000 is designed to work on most roof rack crossbars but when the fit is not correct you can add the Thule Ride-On Adapter # TH532. The Ride-On adapter mounts to your Yakima roof rack and provides smaller square-profile 32-inch bars that will be a better fit for the mounting hardware on your ProRide bike rack. The Ride-On adapter can handle the load of up to two roof-mount bike carriers like the ProRide. You can refer to the linked video...
    view full answer...
  • Replacement Lock for Older Thule Rooftop Cargo Box
    Your pre-owned Thule rooftop cargo box is quite a few years old indeed! My contact at Thule noted this one was actually produced in Sweden, before Thule moved cargo box manufacturing to the USA. Often older boxes may need to use alternate parts for locks, hinges etc when the original items are no longer available. Your photo does not show the lock itself, but if it is a round metal core with a letter and several numbers after it, like # THLOCKN028, we may have a replacement lock core;...
    view full answer...
  • Adapter for Thule Big Mouth For Factory Roof Rack on 2016 Subaru Outback
    I have just what you need; check out the Thule Ride-On Adapter - Factory Roof Rack to Thule Bike Rack Adapter # TH532. This set of adapter bars is the perfect solution for mounting Thule roof rack bike carriers to oversized factory crossbars and is what Thule recommends for this situation. The bars on the Ride-On Adapter are a confirmed fit for your Thule Big Mouth bike carrier.
    view full answer...
  • Adapter Needed to Fit Thule Prologue Pack 515 Bike Rack to Rhino-Rack Vortex Crossbars
    Thank you for the details and the picture! Since you have everything to mount your (discontinued) Thule Prologue Pack 515 to the square bars all you need is the Thule Ride-On Adapter # TH532 to mount this bike rack to your Rhino-Rack Vortex crossbars. The only problem is that this adapter is the only thing available for a Prologue Pack bike rack and it is only able to accommodate 2 bikes. So if you only need to transport 2 bikes then you will be all set. Otherwise you need a new bike...
    view full answer...
  • How to Install Tandem Roof Bike Rack on Thule Aero Crossbar Roof Rack
    Since the tandem bike racks all require either a round or square crossbar you would need to install the Thule Ride On Adapter part # TH532 so that you can install a tandem roof bike rack like the Thule Tandem Bike Rack # TH558P.
    view full answer...
  • What Size Crossbars Does Thule Ride-On Adapter Fit
    If your 2015 Subaru Impreza has crossbars that measure no larger than 3-1/2" x 1-1/2" then the Thule Ride-On Adapter # TH532 will fit. As far as the adapter working with an older Thule 549 bike mount, I reached out to a representative of Thule who said that information was not available as they did not have the specs for that particular rack as it was long ago discontinued.
    view full answer...
  • Adapter for Square Bar Thule Bike Rack for Attaching to Aero Crossbars
    The Thule Ride On Adapter part # TH532 would be your best option. This will fit your aero crossbars and give you a square bar for your bike rack to attach to.
    view full answer...
  • Can the Thule Ride On Adapter be Ordered without Crossbars
    We don't have a kit for the # TH532 without the crossbars, but we do carry all of the parts individually. 4 of the # 915-0625-54 4 of the # 853-2154 4 of the # 853-2156 4 of the # 853-5267 4 of the # 753-2854 4 of the # 936060054 4 of the # 853-5269 8 of the # 853-5293 1 of the # 853-5270-02 1 of the # 853-3593
    view full answer...
  • Can Older Thule Bike Carriers Be Used on Thule AeroBlade Load Bars on a 2017 Subaru Forester
    The Thule Ride-On Adapter, # TH532, can mount to the Thule AeroBlade crossbars and then allow you to attach your older Thule bike rack. The adapter has square load bars and has a two bike rack capacity. The Ride-On adapter is compatible with the following Thule bike racks: Thule Criterium Thule Big Mouth Thule Echelon Thule Peloton Thule Peloton Long Tray Thule Prologue However, the adapter will not work with the Thule Sidearm, Tandem Carrier, or the Thule Super G. If...
    view full answer...
  • Recommended Roof Rack That Can Work With A Kayak Carrier For 2004 Mazda Tribute
    Rhe Thule Ride-On Adapter, part # TH532 will only work with bike carriers. This adapter uses plastic mounting hardware and cannot handle the stress a kayak would have and would fail. You will need to either install a roof rack designed to be able to handle the weight and stress, or if you have crossbars already on your Tribute you can find a kayak carrier that will fit your crossbars. If you do not have a kayak carrier and you have factory crossbars on your Tribute, the # TH532...
    view full answer...
  • Adapter Needed to Install Thule Big Mouth Roof Bike Rack TH599XTR on 2013 Acura RDX Roof Bars
    Thule's Big Mouth TH599XTR roof-mount bike carrier is not directly compatible with factory-installed roof rack crossbars like those on your 2013 Acura RDX as these are typically much wider than Thule's own square load bars. The one direct and cost-effective solution is the Ride-On Adapter # TH532 that you referenced. This adapter kit will work on any factory roof rack whose bar dimensions are as much as 3-1/2 W x 1-1/2 H. The linked video details use of the Ride-On adapter.
    view full answer...
  • How to Fit Thule BigMouth Bike Rack onto Aero Shaped Crossbars
    I have a solution for you, but at this time, there isn't a clamp kit that replaces the original mounting gear on the Thule BigMouth. Instead, I recommend the Thule Ride-On Adapter, part # TH532. This provides a smaller square bar that clamps onto your existing roof rack bars and allows you to mount the BigMouth's directly to that. Because of the quick-release nature of the bars, they're easy to remove after a ride. If you'd rather outright replace the racks instead of having the...
    view full answer...
  • How to Fit Older Thule Mountaineer on a 2016 Honda Pilot Factory Crossbars
    Are you missing the hardware for your Mountaineer? Or is the factory hardware just not fitting around the crossbars? If it won't fit there's really nothing I can safely recommend that would adapt the box aside from the Ride On Adapter part # TH532 which would fit your bars and then give the box square bars to attach to. If the Mountaineer cargo box you have is an ES model (669ES) then # TH05820 will fit for replacement hardware. For older Mountaineer boxes, the correct replacement hardware...
    view full answer...
  • Roof Rack Adapter to Allow Installation of Yakima Sidewinder Bike Rack on Subaru Factory Bars
    The Yakima Sidewinder Roof Tandem Bike Rack # Y02071 is designed to fit on round or square crossbars that are spaced between 24- and 36-inches apart. It will not directly fit on your Subaru factory bars and Yakima's Universal Might Mount Adapters # Y03590 are not compatible with the carrier. I do have another option for you. The best solution I can recommend is to use Thule's Ride-On Adapter # TH532. This is essentially a small roof rack with square bars that attaches to your factory...
    view full answer...
  • Available Adapter to Fit Older Yakima Roof Mount Bike Racks on a 2016 Ford Explorer w/ Factory Bars
    The Thule Ride-On Adapter, # TH532, can allow you to attach your Yakima Viper rack to your vehicle if this bike rack can be mounted to square crossbars. However, if the SteelHead rack can only be mounted to round bars, then that rack cannot be mounted to the Thule Ride-On. I contacted Yakima to see if they offered an adaptor that will allow the Viper and SteelHead bike racks to attach to the factory crossbars of the 2016 Ford Explorer. Unfortunately, they told me that there is no adapter...
    view full answer...
  • What Adapter Needed to Install Thule Criterium Bike Rack TH598 on 1991 Jeep Cherokee Roof Rack
    Thule part TH598 is for their roof-mount Criterium frame-mount bike carrier. This carrier is designed to fit only Thule square bars or Yakima round bars. So to mount this on a vehicle that has a factory-installed roof rack you'll just need to add on the Thule Ride-On Adapter # TH532. The Ride-On Adapter will mount to any factory or aftermarket bars that are up to 3-1/2-inches wide x 1-1/2-inches tall. Your Criterium bike rack can then mount to the square bars included with the adapter. Here...
    view full answer...
  • Roof Bike Rack Compatibility with TracRac TracOne Ladder Rack Bars
    The Swagman Fork Down Roof Mounted Bike Carrier # S64710 fits rack crossbars up to 3-inches wide so it will not fit the 4-inch wide TracRac TracOne crossbars. My contact at Thule confirmed they discontinued the adapter part 25411. Thule does still offer their Ride-On roof rack adapter # TH532 but this also will not fit on the 4-inch TracOne bars. Your substantial bar spread (about 53-inches center to center) will pretty much eliminate all roof-mount bike rack compatibility. Thule...
    view full answer...
  • Adapter for Thule Echelon Bike Rack on 2017 Subaru Outback Roof Rack
    There is an adapter that should allow you to use your Thule Echelon roof-mounted bike rack on your 2017 Subaru Outback's factory roof rack, though you need to take a quick measurement to be sure. The Thule Ride-On Adapter - Factory Roof Rack to Thule Bike Rack Adapter # TH532 will fit factory crossbars that are a maximum of 3-1/2" x 1-1/2" so if your Outback's bars come in at or below those dimensions, you can use the adapter to carry your Echelon on your Subaru.
    view full answer...
  • Roof Rack Recommendation for 2017 Kia Sorento with Flush Rails
    While there are great options for a new roof rack on your 2017 Kia Sorento there is not a way to connect your square Thule crossbars to the flush-mounted rails on your Sorento. A much better way to go is getting a new roof rack, the Thule WingBar, because of how functional, durable and quiet it will be on top of your Sorento. This rack will attach to your flush-mounted rails and consists of: - Thule WingBar Evo Crossbars # TH711220 (Black) OR # TH711200 (Silver) - Evo Flush Rail Feet...
    view full answer...
  • Adapter to Use Thule Peloton Rooftop Bike Rack on Factory Crossbars of 2000 Subaru Legacy
    Thule offers an adapter # TH532 to allow accessories like your Peloton TH517 roof bike rack to work on the wide factory crossbars on your 2000 Subaru Legacy wagon. The Ride-On Adapter # TH532 also works with these other roof bike racks: TH598 - Thule Criterium TH599XTR - Thule Big Mouth TH518 - Thule Echelon TH516 - Thule Prologue It DOES NOT work with the following carriers: TH594 - Thule Sidearm TH558P - Tandem Carrier TH597 - Super G
    view full answer...
  • Thule Roof Rack Ride-On Adapter to Enable Use of Bike Rack on Subaru Crossbars
    If your Subaru factory crossbars are too wide to directly accept the mounting hardware for your Thule roof-mount bike rack then you can add their Ride-On Adapter # TH532, shown in the linked video. This will fit on bars up to 3-1/2-inches wide x 1-1/2-inches tall. This fits your factory bars and allows mounting of any of several Thule roof-mount bike carriers including their Criterium, Big Mouth, V2, Velo Vise, Echelon, Peloton and Long Tray Classic fork mount carriers. The Ride-On...
    view full answer...
  • How to Carry Thule Big Mouth Roof-Mounted Bike Rack on Factory Roof Rack
    We actually have the exact part you need to carry your Thule Big Mouth Roof Mounted Bike Rack TH599XTR, the Thule Ride-On Adapter - Factory Roof Rack to Thule Bike Rack Adapter # TH532. This will fit factory crossbars that are up to 3-1/2" wide x 1-1/2" tall and give you the mounting option you need for your Thule bike rack. The mounting kit you mentioned is good outside-the-box thinking, but wouldn't work for the Big Mouth bike rack. I've added a link to a video review of Adapter #...
    view full answer...
  • Adapter Needed to Carry Thule Velo Vise Bike Rack with OEM Crossbars on a 2016 Toyota 4Runner
    In order to install your (discontinued) Velo Vise 589 rooftop bike rack to the aero-style crossbars on your 2016 Toyota 4Runner you simply need the Thule Ride-On Adapter # TH532 which is compatible with crossbars that are a max of 3-1/2" wide x 1-1/2" tall. Since your OEM crossbars don't have the T-Slot that allows the use of the Xadapt1 Adapter # XADAPT1 the Ride-On is your only option.
    view full answer...
  • How to Install Thule UpRide on Factory Crossbars on 2006 Subaru Forester
    Thule's UpRide, part # TH599000, will fit to your factory crossbar without needing to use the Thule Ride On, part # TH532. If you prefer a fork-mount carrier that includes locks an excellent choice is the Rhino-Rack MountainTrail # RBC035.
    view full answer...
  • Adapter Recommendation to Fit a Thule Flat Top Ski Carrier on Aero Bars
    Thanks for the pictures! Based on that it looks like you have a Thule Flat Top and need the part # 7533998 to allow it to fit aero bars. Your other option is the Thule Ride-On Adapter part # TH532 which will also fit your bars and provide you with a square crossbar.
    view full answer...
  • Thule Roof Rack Adapter fro AeroBlade Crossbars
    If you do not want to use the Yakima Universal Mighty Mount kit # Y03590 on your Thule AeroBlade cross bars you might prefer the Thule Ride-On Adapter # TH532 which fits on roof rack bars up to 3-1/2-inches wide x 1-1/2-inches tall. Since AeroBlade bars measure 3-1/8 wide x 1-1/8 tall the Ride-On adapter will fit. The adapter then provides basic square bars that will accept a wide range of rack-mount bike carriers so long as they fit square bars.
    view full answer...
  • What Adapter is Needed for Thule Prologue Roof Mounted Bike Carrier to Fit Thule AeroBlade Crossbars
    The Thule Prologue XT Roof Bike Rack - Fork Mount - Clamp On - Aluminum # TH516XT is not directly compatible with Thule Aeroblade crossbars. There is not a t-track style adapter compatible so you will need to use the Thule Ride-On Adapter # TH532 to make it fit. You may also want to consider the Thule Wheel-On Roof Mounted Bike Wheel Carrier # TH593.
    view full answer...
  • Adapter Availability for Thule Adventurer to Fit Wider Crossbars
    If the current hardware won't fit the crossbars there isn't an adapter available that would allow you to install it aside from the Ride On adapter # TH532 which essentially gives you a crossbar to mount to the top of your current crossbar.
    view full answer...
  • Adapter Recommendation to Attach Thule Big Mouth to Nissan Rogue Factory Crossbars
    Your best option would be the Thule Ride On adaper part # TH532 which will fit your Nissan Rogue crossbars and give you a set of square bars for the Thule Big Mouth to fit on.
    view full answer...
  • How to Fit Thule Hullavator on 2013 Subaru Outback with Factory Crossbars
    To install a Thule Hullavator part # TH898 on your 2013 Subaru Outback Wagon with factory crossbars will require you to install a Thule roof rack as well that is similar to what fits a 2016 but slightly different. You'll need the same crossbars part # TH711200 but instead the feet kit part # TH710401 and you'd be set.
    view full answer...

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