The Triangulator is a custom-sized frame bag filling the triangle between the top tube, seat tube and down tube. It's a handy place to store a water bladder and small items such as your first aid kit. Standard designs will seldom fit your frame correctly, especially if you have rear suspension. We'll provide detailed instructions on how to make a stencil from your bike frame. This not only enables us to create the best fit for your bike, but you can also specify exactly which features you want, or even request custom features specific to your setup!
Standard Features
- Single compartment (one zip - choose left/right side)
Deluxe Features
- Double compartment with horizontal divider (two zips - choose upper left/right, lower left/right)
- Internal map pocket (opposite side to zip(s) - for double compartment, both zips will need to be on the same side)
- Hydration tube exit sleeve (opposite to top zip)
Please note that not all options are possible with small sized frames. Generally, deluxe features are only possible on hard-tail frames, as dual suspension limits the space available.
Custom Extras
Please specify what you'd like and we will contact you regarding the feasibility and price.
Production Time
All Triangulator Bags are custom fitted so take up to 3 weeks from the time we receive your frame stencil (provided we have your requested fabric colours in stock for manufacture). It may be possible to shorten the standard production time, but a surcharge will apply for fast service orders.

Bag construction
Lightweight yet durable - quality made in New Zealand.
Dyneema GridStop has been used as the main outer fabric, as it is light, durable and waterproof.
Bike Portage
Hand space under the top tube (directly in front of the seat) allows for an easy bike carry.
Side Padding & Protection
Closed cell foam laminated to the external fabric on all sides protects your bike frame and gives the bag structure.

Water resistant zippers
YKK Uretek water resistant zippers are used throughout.

Visibility
Highly reflective logos keep you visible from all directions at night

Reinforced
Hyperlon reinforcement patches provide both increased grip and protection for your bike frame
Velcro Attachments
Quality One-wrap Velcro provides a reliable snug fit to your bike

Fabrics & Colours
With 4 external fabric colours to choose from and a large selection of trim colours, you're spoilt for choice! Choose a unique combination that matches your bike or contact us for a completely custom look.
Custom Fit & Sizing
As we can’t physically work with your bike frame (unless you leave it with us!), we need you to create a frame stencil for us. You make the stencil, send it to us and we use it to size the bag and place the straps. The more accurate your stencil, the snugger the fit. All custom-fit bags ship with longer straps, so you can trim them to the correct length once on your bike.
What to put in it
This bag is a great location for your drinking bladder as it places a potentially quite heavy item at the centre of the bike. This distributes the load better across the wheels and allows for better riding performance.
How to pack it
Attach the bag to your bike first, then pack it. This makes it less likely that you'll over-fill it and makes it easier to add heavy items. Make sure the velcro strips are nice and tight and overlap well.
Model: | standard |
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Product Code: | RK24STD |
Weight: | 180 - 240 g |
Capacity: | 5.0 - 8.0 L |
Height: | 30 - 40 cm |
Width: | 7 cm |
Depth: | 40 - 50 cm |
Here at Robo-Kiwi we are all about lightweight bike packing solutions. Our standard option is designed to be very weight efficient and is lighter than many competitors “ultralight” options.
However, if you'd like to save more weight, check out the Triangulator Bag UL.