ULIP Reinforced Inner Tube 16 x 2.125 with 45° Valve for Electric Bike or Wheelchair

ULIP Reinforced Inner Tube 16 x 2.125 with 45° Valve for Electric Bike or Wheelchair

This ULIP Reinforced Inner Tube is designed for electric bikes or wheelchairs that use 16-inch wheels. It features a 45-degree angled valve stem, which can facilitate easier inflation depending on your wheel design. This inner tube is a direct replacement part for servicing worn or damaged tubes.

Key Features and Dimensions

• Size: 16 x 2.125 inches. This indicates a nominal wheel diameter of 16 inches and a tube width suitable for tyres around 2.125 inches wide.
• Valve Type: Angled valve stem. The valve is positioned at a 45-degree angle from the tube surface.
• Valve Length: Approximately 30mm (as shown in image 2).
• Weight: Approximately 179.2g (Net Weight, as shown in image 2).
• Outer Diameter (uninflated): Approximately 395mm (as shown in image 2).
• Inner Diameter (uninflated): Approximately 320mm (as shown in image 2).
• Width (uninflated): Approximately 40mm (as shown in image 2).

Compatibility and Selection Guide

To ensure correct fitment, it is crucial to verify the specifications of your existing tyre and wheel assembly. The nominal wheel size alone is not sufficient. Please check the following:

• Tyre Sidewall Marking: Locate the size marking on your current tyre's sidewall. It should match "16 x 2.125" for optimal compatibility.
• Valve Hole Angle: Confirm that your wheel rim's valve hole is suitable for a 45-degree angled valve. Some rims require straight valves, while others benefit from angled ones for easier access.
• Valve Hole Diameter: Ensure the valve stem diameter of this inner tube is compatible with the valve hole on your wheel rim.

This inner tube is a dimensionally specified component. Compatibility depends on the exact measurements and design of your existing tyre and wheel. If you are uncertain, compare the markings on your old inner tube or tyre with the specifications provided here.

Installation and Safety Notes

When installing the inner tube:

• Carefully inspect the inside of the tyre for any sharp objects or debris that could puncture the new tube.
• Partially inflate the inner tube before inserting it into the tyre to give it shape and help prevent pinching during installation.
• Ensure the valve stem is correctly seated through the rim's valve hole and is not at an extreme angle.
• After installation, inflate the tyre to the pressure recommended by the tyre manufacturer (usually found on the tyre sidewall). Do not overinflate.
• After initial inflation, check for proper bead seating around the entire circumference of the rim on both sides.