Drop in a GPX and ride the real terrain in photorealistic 3D, with the road grade driving your smart trainer. Free, open-source, no install.
Everything you need to ride real-world routes indoors. Nothing you don't.
Every route rendered on Google Photorealistic 3D Maps with a follow camera, rider beacon, minimap, and cinematic overviews — orbit, ellipse fly-by, figure-eight fly-over, or straight-down satellite.
Connect a Wahoo KICKR or any FTMS trainer over Web Bluetooth. Pedal and the map moves at your speed; the road grade drives your resistance live.
Pair a Bluetooth strap for live BPM. HR and power zones computed from your resting/max HR and FTP.
Auto-classifies difficulty and finds every sustained climb — length, gain, grade, and live progress to the top.
Rides record locally and download as virtual-ride .fit files for Strava, Garmin Connect, or intervals.icu.
Drag in any route with elevation, or pick from the built-in gallery.
Pair your FTMS trainer and heart-rate strap over Bluetooth.
The camera drops behind you and the road grade drives resistance.
Download your ride and upload it anywhere you track fitness.
Open it in Chrome or Edge, drop in a route, and ride. It's free and always will be.