Product details
Description
The Hartex fat bike inner tube is sized for 20x4.00 tyres with ETRTO 100-406. It is suitable for compact fat bikes, cargo or utility bikes and other wide 20-inch wheels that use a Schrader valve.
Before installation, confirm that the tyre sidewall shows 20x4.00 or ETRTO 100-406. The 406 mm rim diameter is the key compatibility point for 20-inch wheels, so match the ETRTO marking rather than relying on the inch size alone.
| Type | Fat bike inner tube |
|---|---|
| Brand | Hartex |
| Tyre size | 20x4.00 |
| ETRTO | 100-406 |
| Valve | Schrader |
