
BUILT TO FIT, NOT FORCE
BTA Base Plate System – Sizing Guide
Our BTA base plate system is available in two sizes, designed to suit different cockpit setups and riser widths.
The Medium plate is best suited to narrower riser setups, while the Large plate is designed for wider configurations.
To choose the right option, measure the distance between the bolts that mount your arm cups to the frame.
Important: Measure from the outside bolt on the left arm cup to the outside bolt on the right arm cup.
- Medium Plate: fits bolt spacing from 40mm to 150mm
- Large Plate: fits bolt spacing from 100mm to 220mm
If your setup sits between ranges, consider how much adjustment you may need moving forward. Choosing the closest fit will give you a cleaner, more secure setup.
PRECISION COMFORT, BUILT FOR REAL RIDERS
A VIIKING BTA base plate is the starting point for a reliable front-end setup, giving you the confidence that your nutrition stays exactly where it should.
It keeps your hydration system stable and secure, so you’re not dealing with movement or distractions while riding. At the same time, the right amount of engineered flex allows it to move slightly with the bike over rough surfaces, reducing vibration through the cockpit.
The result is a setup that feels controlled, comfortable, and dependable when it matters most.
LIGHTWEIGHT, STRONG, PERFORMANCE READY
Each set is produced using Carbon Fiber PLA, giving you a lightweight structure with the durability needed for both training and racing.
The result is a clean, functional finish that holds up under pressure without unnecessary bulk.
// FEEDBACK LAB
BUILT DIFFERENT.
CONSTANTLY IMPROVED.
These BTA base plates are part of our Feedback Lab program.
Submit your feedback after riding, and if we make improvements based on it, we'll send you a discount off our next version.
Because we don’t believe products should stay static.
Cars get updates, software evolves, yet most cycling components stay the same for years. That doesn’t make sense to us.
With our manufacturing approach, we’re able to continuously refine and improve the design without being held back by large scale production constraints.
That means when you buy from us, you’re always getting the latest version, not old stock.