Trek Speed Concept Gen 3 BTA (Between-The-Arms) Mount

from $220.00

The UnderCup BTA Mount is a sleek, stable solution designed specifically for the Trek Speed Concept Gen 3. It positions your hydration bottle underneath your arm cups, making it ideal for setups that don’t have a built-in BTA mount.

Built to enhance aerodynamics and accessibility, it maintains a clean, integrated profile that matches the Speed Concept’s design. Perfect for high-performance training or racing, the UnderCup BTA is engineered to stay secure and steady—even on rough roads or during aggressive efforts.

Key Features

  • 💨 Aero-Focused Design – Tucks the bottle beneath the arms to reduce frontal drag and streamline your position.

  • 🛠️ Customisable Options – Includes adjustable stack height and multiple bottle positions.

📌 Not seeing an option that fits your setup?
No problem! Simply click here to go to the Custom Design page and fill out the form. We’ll help build a system tailored specifically to your bike.

The UnderCup BTA Mount is a sleek, stable solution designed specifically for the Trek Speed Concept Gen 3. It positions your hydration bottle underneath your arm cups, making it ideal for setups that don’t have a built-in BTA mount.

Built to enhance aerodynamics and accessibility, it maintains a clean, integrated profile that matches the Speed Concept’s design. Perfect for high-performance training or racing, the UnderCup BTA is engineered to stay secure and steady—even on rough roads or during aggressive efforts.

Key Features

  • 💨 Aero-Focused Design – Tucks the bottle beneath the arms to reduce frontal drag and streamline your position.

  • 🛠️ Customisable Options – Includes adjustable stack height and multiple bottle positions.

📌 Not seeing an option that fits your setup?
No problem! Simply click here to go to the Custom Design page and fill out the form. We’ll help build a system tailored specifically to your bike.

Bar Angle:
BTA Height: