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MoTeC telemetry analysis — free, in your browser

LapLift decodes MoTeC log files in the browser, so you can compare laps from a MoTeC dash without opening i2. Upload the native .ld or an i2 CSV export and start analyzing.

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Files LapLift accepts

.ld (binary)
The native MoTeC log file, read directly. Validated on C125-dash logs; other MoTeC dashes that write the same .ld layout (M1, ADL and similar) should read too. If a file will not open, use the i2 CSV export instead.
i2 / i2 Pro CSV export
A CSV exported from MoTeC i2 — a metadata header, a units row, then Time/Distance data. Its beacon markers give precise lap timing.

What gets parsed

SpeedGPS positionHeadingLateral GLongitudinal GVertical GYaw rateSteering angleThrottleBrake pressureRPMGearWater tempAir tempBattery voltage

The core telemetry plus whatever else your dash logged — water and air temperature, battery voltage and other channels come through as extra traces. Brake is read from the analog brake-pressure channel where the file has one.

What you can do

Overlay a faster driver
Stack your lap on top of any lap shared with you. A time-delta trace shows exactly where you gain and lose, corner by corner.
See your line and corner speeds
Your GPS trace becomes a track map with the speed you carried through every corner, so you can see where the time really goes.
Auto-sync your video
One click lines GoPro or DJI footage up with your data. Scrub the trace and the video follows, frame-accurate — no nudging footage by hand.
Build a Theoretical Best lap
LapLift stitches your fastest sectors into one ideal lap, so you know what the session was actually worth.
See how you stack up
Compare against other drivers on the same track with crowd percentiles — where you rank overall and corner by corner.

Questions

Can LapLift open a .ld file without MoTeC i2?

Yes. Upload the .ld directly and LapLift decodes the MoTeC binary in place — no i2 install and no export.

Is MoTeC i2 Pro free?

The i2 Pro installer is a free download from MoTeC, and i2 Standard is available to anyone logging with a MoTeC logger or ECU. The Pro features (advanced maths, multiple overlay laps, unlimited workbooks and worksheets) need either a Pro Analysis upgrade on your dash or logger, which saves its logs as Pro files, or a one-year Feature Licence on your PC. LapLift is separate and free: it overlays laps from the same .ld file in your browser with no licence.

Where do I download MoTeC i2?

From the downloads page on MoTeC's website, motec.com.au, which lists both i2 Pro and i2 Standard. If you only want to compare laps, you can skip the install and upload the .ld here instead.

My dash isn't a C125 — will my .ld still work?

It should, as long as the dash writes the standard MoTeC .ld layout (M1, ADL and similar do). The .ld reader was validated on C125 logs; if a particular file will not open, export an i2 CSV and upload that instead.

How accurate are lap times from a .ld?

The .ld lap counter is logged at 1 Hz, so LapLift's lap times from a .ld land within about a second of i2's. For exact timing, use the i2 CSV export — its beacon markers are precise.

What channels come through?

Speed, GPS position, the G-force/yaw/steering channels, throttle, brake pressure, RPM and gear, plus extras your dash logged such as water and air temperature and battery voltage.

Is it free?

Yes. Create an account, upload your MoTeC session, and analyze it in your browser at no cost.

Free, in your browser. Nothing to install.

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Related guide: MoTeC i2 Standard vs i2 Pro: what you get and how Pro is unlocked →