Setup

Bike

Each bike keeps its own zones, mount and zero. Changes below save to the selected bike.

Wheelbase

Distance between the front and rear axle. Used to work out how high the front wheel is: wheelbase × sin(angle). Check your bike's spec sheet.

Phone mount

How the phone sits in the handlebar mount, screen facing you. Set zero again after changing it.

Wheelie reads negative?

If lifting the front shows a minus angle, switch to Invert.

Balance zone start

Balance zone end

The angle where the bike stays up with the throttle closed. Most bikes sit somewhere around 70–85°. Find yours slowly and adjust.

Looping zone from

Past this angle the bike falls backwards. Cover the rear brake.

Count a wheelie above

Sound cues

Slow beeps from the count angle, speeding up and rising in pitch as you near the balance point. A soft steady chord while you're in the balance zone. "Brake!" over and over in the looping zone.

"Brake!" voice

Tap Record and shout "Brake!" within 2 seconds. Silence is cut off, so it plays the instant you hit the looping zone. Without a recording you get a fast alarm siren.

App

Offline support: starting…

To install: in Chrome tap ⋮ → Install app (or Add to Home screen). On iPhone: Share → Add to Home Screen.

Your bikes, settings, sessions and voice clip are stored only on this phone. Nothing is sent to the server, so other riders never see them.

Practice in a closed, empty area with full gear. The angle is measured from the phone's motion sensors, so a loose mount gives wrong readings. Readings settle within a second after big bumps.

Wheelie
Trainer

Lock the phone in the handlebar mount, screen facing you.
Sit on the bike, both wheels down, and tap Set zero. Recording starts straight away.
Ride. Every wheelie is logged with peak angle, time and time in the balance zone.

Sessions

Setup

WheelieTrainer

Wheelie
Trainer