Autumn and Snow worlds always look the same; seasons change Temperate, Alpine and Desert worlds.
Live weather comes from Open-Meteo.com (weather data CC BY 4.0). The location sent is rounded to about 1 km.
Shown on imported routes. Map tiles load from openstreetmap.org, which sees the area you’re riding. Map data © OpenStreetMap contributors.
Difficulty is how much of the real gradient you feel at the pedals. 50% is a good start; 100% feels like the real road. Your in-game speed always comes from your actual watts.
Keys: C camera · M routes · B bests · L rider list · G ghosts · R line up ghosts · T trainer check · H hide HUD · Esc settings
Power, last 60 seconds.
Same settings and seed always give exactly the same world: road, hills, trees and all.
Ride real roads: import a FIT, GPX or TCX file of a route or a past ride. The road follows its real shape and hills (the scenery around it is generated). Get one from Garmin Connect or Wahoo (FIT), Strava (activity → Export Original, or route → Export GPX), Komoot or RideWithGPS. Zipped .gz files from a Strava export work too. You can also drop files onto this page.
Earn XP by riding: 10 XP per km and 10 XP per 100 m climbed, plus a bonus for every achievement. Saved in this browser.
In a workout the trainer runs in ERG mode: it holds the target power whatever your speed or gear, so just keep pedalling. Free-ride parts give the hills back. Stop pedalling and the workout pauses.
Your trainer is connected read-only, so it can’t hold the targets: ride to the target power yourself.
FTP is the power you could hold for about an hour. Workout targets are percentages of it. Not sure? Do the ramp test first.
Optional. Sign in to keep your level, achievements, ghost rides, worlds and best times online, and ride with them on any device. Without an account everything stays saved in this browser.
The Cranzu server can’t be reached right now. Your progress is still saved on this device.
Signed in as admin
Synced across your devices: all settings (including graphics and the current world), level & achievements, ghost rides, your worlds, climb & sprint bests, and the ride in progress, so you can carry on from another device. Imported route files aren’t synced yet.
Signs you out on every phone, tablet and computer, this one included. Each keeps its own copy of your data.
Deletes your account and everything stored on the server: synced progress, ghost rides, worlds, workouts and your leaderboard times. This browser keeps its own copy. This can’t be undone.
Accounts need an invite code. Each code works once.
Your fastest times on , measured from the start of each ride. Race them live with 👻 Ghosts.
Race your past rides and steady pacers. Every ride starts from the same spot, so ghosts line up with you. Pick up to 4. Press R or “Line up with me” any time to bring them back next to you.
Pacers hold a steady power for your weight, e.g. 3.0 W/kg = 225 W.