Inner tube 200x50 valve 90x90°

Size

200x50 inner tube, also designated 8x2. This size fits the Speedway Mini 4 Pro, the Ninebot ES range and machines with the same fitment. The rubber adapts to a range of widths around 50 mm.

Two rim diameters in 200x50

The 200x50 fits rims of different diameters depending on the machine. Check the inner diameter of the original tube before ordering: the outer size alone is not enough to guarantee the fit.

90x90° valve

The valve is angled at 90 degrees on both segments. This double bend brings the inflator head parallel to the rim, where a straight valve would be unreachable between the brake disc and the fork arm.

The angle is dictated by the rim and mudguard geometry. Check the one on 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.