Read this before you install anything.
STRIDE replaces the software on a treadmill console and then drives the machine. It sets the belt speed and moves the incline deck while somebody is standing on it.
The belt and deck can move without you touching anything. A guided walk changes the incline on its own, and a warm-up ramps the belt up when a workout starts.
The incline deck moves under load — flat to nine percent shifts real weight while you're on it.
Everything that was dangerous about the treadmill before still is. The motor, belt and deck are unchanged.
The safety key is the emergency stop, not the software. Pull it and the hardware cuts the belt, independently of anything STRIDE is doing. STRIDE notices and shows a screen, but it isn't what stopped the belt.
STRIDE drives the incline. It only ever suggests a speed. A guided walk moves the deck, because the deck can't run away underneath you. It will say "lift to 6.4 km/h" and leave the belt where it is.
Automatic stops ramp down at 2 km/h per second. The first guided walk cut the belt from 4.2 km/h to zero the moment the plan ended, which was enough to catch someone off guard — at a run it would have put them on the floor. The STOP button is exempt and stops immediately, because that is a person deciding.
The board's limits win. Incline and speed ranges are read from the machine at startup and every plan is clamped to them. Nothing in Settings can raise them.
Incline moves gradually — a percent every three seconds by default, so the biggest jump in any built-in plan takes about half a minute rather than landing under you mid-stride. Settings offers Gentle, Normal and Quick rather than raw numbers.
STRIDE is not a medical device and is not certified as anything.
The coach is a language model given some numbers and told to be brief. It is instructed never to give medical advice or express concern about a reading, and there is a setting to take a subject off the table entirely. It can still be wrong.
Bluetooth straps, and handlebar grips on machines that have them, are consumer heart rate sensors. If a number looks alarming, believe your body and a doctor.
- Your warranty is almost certainly void. Assume it is.
- You lose iFit — subscription workouts, the app, the account.
- You can make the console unbootable. Read the whole install guide before starting, not while stuck halfway.
It's reversible. A factory reset restores the manufacturer's software, verified on the machine STRIDE was built against. You are replacing the screen on the front, not the motor controller.
That is not the same as supported — nothing here is supported by anybody, and a reset that worked on one console is not a promise about yours. But the realistic worst case is "reset it and start again", not "you now own a broken treadmill".
Don't do this to a treadmill you don't own.
- Pull the safety key.
- Step off.
- Switch off at the wall.
Both still work whatever the console is doing. STRIDE can't disable either.
To get the treadmill back as it was, factory reset from the console's recovery and set up iFit again.
Please open a security advisory rather than a public issue, so it can be looked at before it is widely known.
Anything that moves the belt or deck in a way the person on it didn't expect is a safety problem, not a bug.