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Tow Bar Mounted Cargo Boxes

Tow Bar Cargo Boxes

Rear Mounted Cargo Storage for Your Car

Tow bar cargo boxes provide a practical and easily accessible way to increase your vehicle's luggage capacity without using valuable roof space. Their low mounting position makes loading and unloading easier, particularly when carrying heavy or bulky items.

Rear mounted cargo boxes are an ideal choice when your roof is already being used for bikes, kayaks, surfboards or a roof tent, and their position behind the vehicle can offer aerodynamic advantages compared with carrying additional luggage on the roof.

They're also a popular storage solution for electric vehicles and motorhomes, providing additional external luggage space that's easy to access.

Suitable for everything from holiday luggage and camping equipment to wet or muddy walking gear and sports equipment, Thule tow bar cargo boxes are available in a range of sizes and mounting options to suit different requirements.

Thule Onto 2

A practical 300-litre rear cargo box that mounts directly onto your vehicle's tow bar, complete with integrated rear lighting, 13-pin electrics and a number plate holder.
£999.99
£1099.99

Thule Santu

Adds cargo storage to your Thule EasyFold 3, EasyFold XT or EPOS bike rack - easy to attach and use, 260 litres of cargo storage within the solid plastic storage box.

From
£699.00
£779.00

Thule Onto 2 for EasyFold 3

Rear mounted cargo box designed specifically for the Easyfold 3 bike racks (944 & 945)

From
£549.99
£649.99

Thule Arcos M, L & XL

Premium rigid rear cargo boxes designed to provide additional luggage space without using your vehicle's roof. Available in Medium, Large and XL sizes to suit different storage requirements.
From
£749.99
£829.99

Thule Easyfold 3 with Onto 2 Cargo Box (3 bike model)

Bundle includes:
1 x Thule Easyfold 3 (3 Bike)
1 x Thule Onto 2 for Easyfold 3

From
£1369.98
£1649.98

Thule Easyfold 3 (4 Bike) with Onto 2

Bundle includes:
1 x Thule Easyfold 3 (3 bike model)
1 x Thule Easyfold 3 Bike Add-On
1 x Thule Onto 2 for Easyfold 3
1 x Thule Onto 2 Bike Arm for EasyFold 3 (945800)

From
£1615.96
£1932.96

Thule EasyFold 3 (3 Bike) with Santu Package

Bundle includes:

1 x Thule EasyFold 3 (3 Bike) 945200
1 x Thule Santu Cargo Box 909400

From
£1518.99
£1778.99

Thule EasyFold 3 (2 Bike) with Santu Package

Bundle includes:
1 x Thule EasyFold 3 (2 Bike) 944200
1 x Thule Santu Cargo Box 909400

£1438.99
£1628.99

Thule Epos 3 with Santu Package

Bundle includes:
1 x Thule Epos 3 (979200)
1 x Thule Santu Cargo Box 909400

£1748.99
£1928.99

Thule Epos ParkSecure 3 Bike with Santu Cargo Box Package

Bundle includes:
1 x Thule Epos 3 ParkSecure (9803200)
1 x Thule Santu Cargo Box 909400  

£2098.99
£2228.99

Thule Arcos Box Package

All in one tow bar cargo box with integrated lighting and number plate holder.

£1169.98
£1319.98

Thule Chasm | Duffel Bag Collection

Premium Travel Duffel Bags for active outdoor lifestyles

View Details

Thule Arcos Platform

The Thule Arcos Platform is needed in order to carry the Thule Arcos cargo carrier box.

£299.99
£349.99

Which Tow Bar Cargo Box Do I Need?

Thule offers several different rear mounted cargo storage systems. The right option will depend on whether you want a dedicated cargo carrier or already own a compatible Thule bike rack.


Thule Onto 2
The Thule Onto 2 is a complete rear mounted cargo solution that attaches directly to your vehicle's tow bar. With integrated rear lights and a number plate holder, it's a convenient option if you want additional luggage space without needing a separate bike rack.

Recommended for: Easy-to-access luggage storage, holidays, outdoor equipment and vehicles where you want to keep the roof clear.

Thule Santu
The Thule Santu adds a rigid cargo box to a compatible Thule bike rack, allowing you to convert your existing carrier into additional luggage storage when you're not transporting bikes.

Recommended for: Owners of compatible Thule EasyFold 3, Easyfold XT or Epos bike racks who want to use their carrier for both bikes and luggage.

Thule Onto 2 for EasyFold 3
Designed specifically for compatible Thule EasyFold 3 bike racks, this version of the Onto 2 allows you to add rear cargo storage using your existing bike carrier as the mounting platform.

Recommended for: EasyFold 3 owners looking for additional luggage-carrying versatility.

Thule Arcos
The Thule Arcos is a rigid rear cargo box available in a choice of sizes. Used with the required Thule Arcos Platform, it provides generous, easily accessible storage at the rear of your vehicle.

Recommended for: Customers looking for a premium dedicated rear cargo box with a choice of storage capacities.

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