3T Eye Cycling Computer

What are the delivery costs?

We offer Free UK Mainland Delivery on all orders over £20. Products shipped to outlying UK regions are excluded from free shipping.

Standard delivery is normally 2 - 5 working days.

Please view our delivery page for full information on UK and international delivery costs.

3T Eye is a robust, handlebar-mounted digital display that supports navigation and training. Comes complete with face plate and clamp needed to fit it to a stem.

It monitors the outputs both of training aids communicating via ANT+, and smartphones communicating via Bluetooth.

Paired with a suitable input device, it’s capable of displaying key data such as speed, cadence, heart-rate, altitude, and power, in real time.

In Bike Mode, 3T Eye automatically pairs with any ANT+ sensor, such as a heart-rate monitor or power meter, and displays the data on its screen.

In Smart Bridge Mode, it captures data from an ANT+ sensor and transmits it via Bluetooth 4.0 to a compatible sports app running on a smartphone, as well as displaying the data.

In Smartphone Mode, it exchanges data automatically with the 3T Cycling app (available for Apple IoS™ and Android™) running on a smartphone, enabling real-time data display, monitoring, and recording. Most important for many riders is speed, which is calculated using the phone’s GPS.

3T Eye’s miniature, line-of-sight display means there’s no need to take the phone out of your jersey pocket to check your numbers. Key training data is always visible, while your costly and fragile smartphone is kept securely out of harm’s way.

* The 3T Cycling app is compatible with iPhone 4 and later and is available now in the Apple App Store. Android version coming soon, and will be available in Google Play Store.


Occasionally, without notice, manufacturers change product design and/or specifications.