Thule Rear-Mounted Storage | Arcos, Santu & Onto 2
Rear-Mounted Storage: Extra Space Without Using the Roof - Fits Directly onto your Towball
If you’d rather keep the roof free, or simply want something that’s easier to load, Thule offers several different ways to add useful storage space behind the car.
From hard-shell cargo boxes to flexible solutions that work with an existing bike carrier, there’s an option for everything from family holidays and camping trips to golf bags, pushchairs and everyday extra luggage.
Thule Arcos: M, L & XL
The Thule Arcos range gives you secure, hard-shell storage mounted directly behind the vehicle. Because the box sits low to the ground, it’s much easier to load than a conventional roof box, while leaving the roof completely free for bikes, a roof tent or other equipment.
The Arcos is available in different sizes, including Arcos M, Arcos L and Arcos XL, so you can choose the amount of space that best suits the way you travel.
Shop the Thule Arcos L 400L: See More
Shop the Thule Arcos XL 450L: See More
Thule Santu
If you already own a Thule Easyfold XT, Easyfold 3 Or Epos Thule bike carrier, the Thule Santu gives you another way to turn the rear of the car into useful storage space.
Santu is a hard-shell cargo box designed to work with compatible Thule EasyFold and Epos carriers. That makes it a useful option if you want one system that can switch between carrying bikes and carrying luggage, rather than having completely separate setups.
Shop the Thule Santu:
https://roofboxed.com/products/thule-909400-santu
Thule Onto 2
For something lighter and easier to store when it isn’t being used, the Thule Onto 2 is a practical alternative.
It gives you 300 litres of rear-mounted storage and attaches directly to the towbar. Its low position makes loading straightforward, while the foldable design makes it easier to store away at home.
Shop the Thule Onto 2:
https://roofboxed.com/products/thule-905900-onto
Thule Onto 2 for EasyFold 3
If you already own a Thule EasyFold 3, there’s also a version of the Onto 2 designed specifically to work with that carrier.
The Thule Onto 2 for EasyFold 3 adds 300 litres of useful luggage space at the rear of the vehicle, giving your bike carrier another job when you aren’t transporting bikes.
It’s a neat option if you want to get more use from equipment you already own without adding another completely separate rear-mounted platform.
Shop the Thule Onto 2 for EasyFold 3:
https://roofboxed.com/collections/cargo-box-1/products/onto-2
Which option works best really depends on how you travel. If you want a solid, premium cargo box with plenty of capacity, the Arcos range is a great choice. If you already have a compatible bike carrier, Santu or Onto 2 for EasyFold 3 can help you get more use from the equipment you already own. And if easy storage at home matters, the foldable Onto 2 is worth considering.
Whichever route you take, the main benefit is the same: more luggage space without filling the car or using up valuable roof space.
