What file format does SpeedAngle use?

SpeedAngle records .sa log files, exported via its free R4 desktop software (Windows). StintBox reads .sa natively, including the lap and sector times stored in the file's track plan.

How accurate is the lean angle?

Lean angle is measured on the device itself at 20 samples per second using SpeedAngle's patented method — not estimated from the camera or GPS. It feeds the StintBox Lean Angle widget directly.

I used to overlay SpeedAngle data with Dashware or RaceRender — can I switch?

Yes. SpeedAngle users have long paired their logs with tools like Dashware and RaceRender. Dashware is discontinued, and StintBox is a modern, maintained alternative with native .sa support.

← All compatible devices

Racing

SpeedAngle Telemetry Overlay

Device-measured lean angle and lap times for motorcycle track days

SpeedAngle GPS lap timers are built for motorcycles, with a patented sensor that measures lean angle directly on the device. StintBox reads the .sa log natively — GPS, speed, lean angle, longitudinal G, plus lap and sector times from the track plan stored in the file.

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Supported Data Channels

GPS Position (10 Hz)

Speed

Lean Angle (20 Hz, device-measured)

Longitudinal G-Force

Lap Times

Sector Splits

Satellites

How It Works

Record your session

Mount the SpeedAngle on your motorcycle and ride. It logs GPS, lap times, and lean angle automatically.

Export the .sa file

Connect the device and export your session as a .sa log using SpeedAngle's free R4 desktop software.

Import into StintBox

Drag the .sa file and your video into StintBox. Lap and sector times appear automatically from the track plan saved in the file.

Build your overlay

Add lean angle, lap timer, track map, and G-force widgets, then align the data with your footage in seconds.

Supported Models

APEX DASH

10 Hz GPS, lean angle, dash display

APEX

10 Hz GPS lap timer with lean angle

GMAP

Earlier-generation GPS lap timer

Recommended Widgets

Lean Angle

Lap Timer

Track Map

Speedometer

G-Force Meter

Sector Splits

Speed Trace

Frequently Asked Questions

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Windows, macOS, Linux — no account required