Stop with control.

KS AIR LOCK adds anti-lock braking and automatic emergency braking to a bicycle, and shows it all on a round touch display on the handlebar.

Pre-order Try the demo

In development. A pre-order is a free request: no payment is taken.

Press and hold the display to squeeze the brakes.

Three jobs on every ride.

AIR LOCK sits between your hands and your brakes. It shows how hard you are braking, helps when a wheel is about to lock, and brakes for you when something is too close.

See your braking

Two arcs rise from the bottom of the display as you pull each lever. A light touch stays green. Harder pulls climb through yellow, orange and dark blue to red. When you pull both levers, the number splits into B for the rear brake and F for the front.

0BRAKE %
  • Green1 to 24%
  • Yellow25 to 39%
  • Orange40 to 66%
  • Dark blue67 to 84%
  • Red85 to 100%

Stay unlocked with ABS

When you brake hard and a wheel is about to lock, a small motor on each brake pulses it for you, and an orange ABS icon blinks on the display. The pulse rate is adjustable from the display or the rider app. It starts at 15 Hz.

Brake automatically

A distance sensor looks ahead of the bike. If something gets too close at speed, auto brake applies the brakes, a red AB icon blinks on the display and the buzzer sounds an emergency beep.

Also on board

  • Speed and batterySpeed in km/h sits under the brake number. Battery level and time sit at the top.
  • Battery warningsCharge reminders at 25, 20, 15 and 10 percent. Sleep at 9 percent. Lock at 2 percent.
  • Part checksA toast message appears if a brake unit or the sensor loses its link, with a shortcut to Connected Devices.
  • One-time brake setupSetUP asks you to pull each lever to its end once, so 100% always means your full pull.
  • Sleep clockSleep turns the screen off but keeps touch awake. A tap brings the display back.
  • Sounds with purposeA start-up chime and tap sounds on the speaker. The buzzer is kept for errors, ABS and auto brake.

Five small units, one wireless link.

Every part of AIR LOCK is its own small board. They talk to each other over ESP-NOW, a direct radio link between ESP32 boards, so there is no router and no internet needed on the bike.

  • Display unitXIAO ESP32-S3 with the 1.28 inch round touch display. It runs KS AIR LOCK OS, hosts the bike's Wi-Fi network and makes every braking decision.
  • Front brake unit (F)ESP32-C3 with a sleeve motor, a rotary encoder that measures lever pull, and its own battery.
  • Rear brake unit (B)The same build as the front unit, set up as the rear brake.
  • Sensor unitXIAO ESP32-S3 Sense with a VL53L1X time-of-flight sensor that measures the distance ahead.
  • Speed unitESP32-C3 with an MPU6050 gyroscope, plus an optional A3144 hall sensor and magnet on the wheel.

Your phone is the second screen.

The rider app runs in your phone's browser and connects to the bike's own Wi-Fi network, so it works without mobile data. It shows everything the display shows, and more.

  • Pair in a minutePick the KS AIR LOCK network, then tap Allow on the bike's display to confirm your phone.
  • Reports that wait for youAlerts and errors are held on the bike while no phone is connected, and arrive the moment you connect.
  • Find My BikeRings the buzzer and speaker until you stop it from the app or on the bike.
  • Setup and calibrationStart SetUP from the app and the bike walks you through calibrating both brakes.
  • Your settingsRename the bike's Wi-Fi network, join your home Wi-Fi, set the time and tune ABS.
  • Updates with release notesSee what is new, then install without touching the bike's display.

Try it yourself.

A working simulation of the bike display and the rider app. Power the bike on, squeeze the levers, trigger ABS and auto brake, and install a sample update. Nothing here is connected to real hardware.

Loading the demo

The demo is easiest to use on a bigger screen. On a phone, open it full screen.

Open the demo full screen Pre-order

Pre-order AIR LOCK.

Tell us what you ride and how many units you want. KS will contact you with the details when AIR LOCK is ready to order.

  • No payment now.A pre-order is a request. Nothing is charged, and you can cancel it at any time before it is confirmed.
  • Google sign-in only.You sign in with your Google account. We receive your name and email from Google. We never see your password.
  • Track it here.Your requests and their status appear under the form. KS confirms each one from its own admin panel.
  • Price and dates.Not announced yet. You will see them before you decide anything.
Checking your sign-in

Brand, owner and developer.

Everything on this page about who makes AIR LOCK, and who it belongs to.

KS logo

Owned by KS

KS AIR LOCK and the RYDOVEX™ brand are owned by KS.

RYDOVEX™ · Intelligent Cycling Systems

Product
KS AIR LOCK
Model
AL67
Version
1.0
Brand
RYDOVEX™, “Intelligent Cycling Systems”
Owned by
KS
Developer
Kaviru Sadil
Operating system
KS AIR LOCK OS
Display
1.28 inch round touch display
Main board
XIAO ESP32-S3
Link between units
ESP-NOW radio
Rider app
KS AIR LOCK app, served by the bike over its own Wi-Fi
Status
In development. Pre-orders open.

Kaviru Sadil

Owner and developer of KS, and the developer of KS AIR LOCK, the KS AIR LOCK OS and its apps.

Questions, answered.

Can I buy AIR LOCK today?

Not yet. AIR LOCK is still in development, which is why this page takes pre-orders as free requests. KS will contact you when it is ready to order.

Do I pay anything now?

No. A pre-order takes no payment and no card details. You can cancel it from this page while it is still a request.

Why do I have to sign in with Google?

So every pre-order belongs to a real account, and you can see or cancel it later without a password. Google tells us your name and email address. It does not tell us your password.

Does the rider app need internet?

No. Your phone joins the bike's own Wi-Fi network, called KS AIR LOCK, and the app talks to the bike directly. You only need internet to download an update.

Is the demo the real thing?

The demo is a simulation of the display and the rider app that you can try in your browser. It shows how AIR LOCK is designed to behave. It is not connected to a bike.

Who owns AIR LOCK?

KS AIR LOCK and the RYDOVEX™ brand are owned by KS. Kaviru Sadil is the developer.