The long-beloved "RAL Loader Series" has returned in a new form.
Starting now, the line has been renewed under SimWorks' new branding, with updates to both model names and colors!
We have combined the bags that Circles previously manufactured under the RAL brand with the SimLoader Series, evolving them into bags that fit even better into more people's rides and daily lives.
The new SimLoader Series continues to utilize 1000-denier nylon as before. While maintaining a classic look and well-balanced sizing, the pannier models inherit the same well-regarded durability and easy-to-install attachment system.
Each bag is highly versatile, budget-friendly, and practical—in short, they are all "just right"—so let me introduce them to you one by one.
Chibi Pannier
SIMWORKS Chibi Pannier
Colors: Black, Coyote/Royal Blue, Olive/Espresso, Charcoal/Orange
Dimensions: 29 x 13 x 29 (cm)
Capacity: Approx. 11ℓ
Price: 12,430 yen (tax included)
With a medium capacity of about 11ℓ, this bag is perfect for everything from touring to daily commuting.
Accessing the main compartment is smooth thanks to the large 2-way zipper.
Without the cover, it can easily fit a 14-inch MacBook!
It can also hold your lunch, water bottle, or even a stuff sack with a change of clothes.
Additionally, the exterior mesh pocket makes it easy to see and retrieve items, making it convenient for storing things like your BEDROCK SANDALS or your gloves once the weather gets a bit colder.◎
The attachment hardware for all pannier bags in the lineup features a simple and robust structure consisting of an aluminum plate, rubber-padded hooks, bungee cords, and S-hooks, so there is no need to worry about them breaking easily. Of course, the hook positions can be adjusted using a spanner or wrench.
The length of the bungee cord can be adjusted freely, allowing for attachment to various sizes of racks. To adjust, simply remove the stopper and use needle-nose pliers or similar tools to manipulate the cord.
The stopper is quite firm, so you won't have to worry about the length changing once you've set it back in place.
Cago Pannier
SIMWORKS Cago Pannier
Colors: Black, Coyote/ Royal Blue, Olive/ Espresso, Charcoal/ Orange
Dimensions: 33 x 20 x 30 (cm)
Capacity: Approx. 20.25ℓ
Price: 19,030 yen (tax included)
Head out for some serious shopping on the weekend, or maybe go get some exercise at the park! The Cago Pannier lets you pack it all—from a small folding stool to a frisbee or even a soccer ball.
You can simply toss items into this large-capacity bag and use it roughly, or even slide in a larger backpack as it is (The backpack in the photo is the OUTDOOR PRODUCTS Circles Day Pack).
This prevents that classic problem of ruining your back with sweat right before you head out to shop in style!
Attachment is simple with the same rail hook mount as the Chibi Pannier. It also includes a bottom board to prevent it from losing its shape even when packed with a lot of items.
It can be folded when not in use, making it less of a nuisance when parking your bike, so you can keep it attached to your bike at all times.
Tomo Tote Bag
SIMWORKS Tomo Tote Bag
Colors: Black, Coyote/ Royal Blue, Olive/ Espresso, Charcoal/ Orange
Dimensions: 32 x 19.5 x 34 (cm) *With roll-top closed
Capacity: Approx. 21ℓ
Price: 14,850 yen (tax included)
This model has seen significant evolution in this latest update. The bag is now newly equipped with internal slip pockets and organizer pockets, making it even more convenient to keep your belongings tidy.
With a larger capacity of about 21ℓ compared to the Chibi Pannier, this bag offers a reliable size that can hold quite a lot while still leaving room for a quick shopping run on the way home.
You could even use it as an eco-bag at the grocery store and then attach it directly to your bike for the ride home.
In addition, the large center Velcro strap has been reinforced, and the outer slip pocket is now also equipped with Velcro. This prevents items from bouncing out, even on rough roads, so you can use it with peace of mind.
It features just the right amount of padding to safely carry cameras and electronic devices, and its liner construction keeps contents dry.
The rectangular base fits perfectly into a Wald 137 basket, and it's a nice touch that the bag can stand on its own while you're packing it.
Origami Frame Bag
SIMWORKS Origami Frame Bag
Colors: Black, Coyote/ Royal Blue, Olive/ Espresso, Charcoal/ Orange
Dimensions: 38 x 5 x 15 (cm)
Capacity: Approx. 2.2ℓ
Price: 8,800 yen (tax included)
This is a frame bag designed to fit bikes of any size or riding style—road, gravel, MTB, children's bikes, you name it.
On larger frames, if you install it with the embroidery facing the drive side, you can still use your down tube and seat tube bottle cages.
While simple and compact in appearance, the main large-capacity pocket can hold a repair kit, a lightweight rain jacket, a mini-wallet, and even a smartphone—everything you need for a basic ride.
The slim side pocket is perfect for thin, flat items like maps or energy snacks.
Additionally, it includes internal Velcro loops to securely hold items like mini-pumps or tools.
With the addition of these daily-use options to the SimLoader Series, the lineup has evolved to be more versatile than ever, supporting everything from commuting and city riding to touring, regardless of the scenario.
Whether used individually or in combination, these bags open up infinite possibilities for exploring unknown roads with your bike.
SimWorks delivers reliable tools that give you the confidence for such adventures.
If you are interested, please come by the shop to see them in person.
