This eWheel inner tube is designed for compact 8.5x2 tyres with ETRTO reference 50-156. The short 20 mm Schrader valve suits many electric scooter and small-wheel layouts where space around the rim is limited.
Before fitting, compare the tyre sidewall with both markings: 8.5x2 and 50-156. Correct sizing is especially important on scooter wheels, where similar outside dimensions can use different rim diameters.
| Type | Inner tube |
|---|---|
| Brand | eWheel |
| Size | 8.5x2 |
| ETRTO | 50-156 |
| Valve | Schrader, 20 mm |