KENDA 350/400-8 TR13 TUBE

The Kenda 350/400-8 TR13 Inner Tube is a replacement butyl rubber tube designed to fit 3.50-8 and 4.00-8 tyres on 8-inch rims. It suits a range of small-wheeled powered and unpowered applications including scooters, pit bikes, and small trailers.

Kenda is a globally recognised tyre and tube manufacturer known for consistent quality control and wide fitment coverage. The TR13 straight rubber valve stem is a commonly used fitment that works with standard Schrader-type inflation equipment.

• Fits both 3.50-8 and 4.00-8 tyres on 8-inch rims
• TR13 straight rubber Schrader-type valve stem
• Butyl rubber construction for reliable air retention
• Suitable for scooters, pit bikes, and small-wheeled applications
• Drop-in replacement compatible with a wide range of 8-inch wheels

• Inner tube

Inspect the tube for damage or deformation before installation.
Lightly dust the tube with talcum powder before fitting to reduce friction against the tyre casing and prevent pinching.
Partially inflate the tube just enough to give it shape before seating it inside the tyre — this helps avoid folds or kinks.
Use plastic tyre levers rather than metal ones when mounting to avoid puncturing the tube.
Once seated, inflate gradually and check that the tyre bead is evenly seated on both sides of the rim before reaching final pressure.
Do not over-inflate; refer to your vehicle's recommended tyre pressure for this tyre size.
Inspect for slow leaks by submerging the inflated tube in water if a puncture is suspected.
Store unused tubes uninflated in a cool, dry location away from direct sunlight, ozone sources (e.g. electric motors), and petroleum products.
Avoid contact with oils, fuels, and solvents, which degrade butyl rubber.