The Hartex fat bike inner tube covers wide 26-inch tyres from 3.50 to 4.00 inches, corresponding to the ETRTO 90/114-559 range. It is intended for compatible fat bikes and wide-tyre utility bikes using a Schrader-valve rim.
For a reliable fit, check the sidewall before installation: the tyre should be a 26-inch fat tyre on a 559 mm rim, with a width in the 90 to 114 mm range. Confirm the rim valve hole is suitable for Schrader.
| Type | Fat bike inner tube |
|---|---|
| Brand | Hartex |
| Tyre size | 26x3.50 / 26x4.00 |
| ETRTO range | 90/114-559 |
| Valve | Schrader |