Inner tube 10x2.125 45x45° valve

Size

10x2.125 inner tube, inner diameter 6 inches (152.4 mm). This size fits the Ninebot F series, the Xiaomi Mi4 and machines with the same fitment. The rubber adapts to a range of widths around 2.125 inches.

45x45° valve

The valve is angled at 45 degrees on both segments. This intermediate angle is dictated by the rim and mudguard geometry: it gives access to the valve with an inflator head where a straight valve would be unreachable, without requiring the double bend of a 90x90°.

A 45x45° valve does not replace a straight valve, nor a 0x90°, nor a 90x90°. Check the angle of the original tube before ordering: this is the leading cause of error on this product family.

Fitting

Sold individually. Inflate the tube slightly before inserting it into the tyre to avoid folds, and make sure it is not pinched between the bead and the rim before bringing it up to pressure.