If you do not want to perform a manual rollout measurement, program your unit using these standard industry estimates: Tire Size / Dimension Manual Calibration Entry Value (mm) 26" x 1.50" 26" x 1.95" 2055 26" x 2.125" 2133 700c x 23mm 2097 700c x 25mm 2105 700c x 28mm 2136 700c x 38mm 2180 Programming the Internal Clock (CLK)

| Tire Size | Setting Value (mm) | Tire Size | Setting Value (mm) | | :--- | :--- | :--- | :--- | | | 1973 | 700x20C | 2114 | | 26×1.9 | 2089 | 700x23C | 2133 | | 26×2.00 | 2114 | 700x25C | 2146 | | 27×1 1/4 | 2199 | 700x28C | 2149 | | 29×2.1 | 2288 | 700x35C | 2205 | For other values, consult a full wheel-size chart to ensure accuracy.

Route the wire down your front brake cable. Wrap it loosely around the cable to prevent it from flapping or getting caught in the wheel spokes. Leave enough slack near the handlebars to allow the front wheel to turn fully. Step 2: Install the Sensor and Magnet

Note: This will not erase your cumulative Odometer (ODO) data. 🔋 Battery Replacement