Bicycle Inner Tube GEKO Dętka 3 - 4 (100) — compatible for 3–4 inch wheels, standard valve

GEKO Dętka 3 - 4 (100) is a replacement bicycle inner tube designed for wheels with a 3–4 inch diameter. The tube is intended for compact bikes, scooters and other small-wheeled assemblies where a standard valve inner tube of this size is required. It restores tyre pressure after punctures and serves as a direct spare part to maintain rolling performance and safety.

Advantages

The inner tube is made to meet common dimensional and material expectations for small wheels, offering a straightforward fit and reliable sealing. Its standard valve design allows use with typical pumps and inflation equipment. Supplied as a single, ready-to-install tube, it is suitable for quick roadside repairs and routine maintenance without the need for special adapters.

Suitable for

• Small-wheeled bicycles and children's bikes with 3–4 inch wheels
• Scooters and kickbikes using 3–4 inch tyres
• Replacement in wheel assemblies of strollers, carts or compact equipment with matching tyre size
• On-the-go puncture repair and workshop maintenance for compact wheels

Key specifications

• Wheel diameter compatibility: 3–4 inches
• Valve type: standard valve compatible with common pumps
• Application: inner tube for small/compact tyres
• Packaging: single unit, ready for installation

How to use

Remove the wheel from the frame or fork if required, deflate and unseat the tyre bead from the rim to access the damaged tube. Carefully extract the old tube and inspect the tyre interior and rim for debris or sharp objects. Lightly inflate the replacement tube to give it shape, insert it into the tyre, seat the tyre bead back on the rim and inflate to the manufacturer-recommended pressure. Check for proper seating and any slow leaks before reinstalling the wheel.

Usage recommendations

Ensure the tyre and rim are free of sharp objects and that the replacement tube matches the tyre's internal diameter. Use appropriate tyre levers to avoid pinching the tube during installation, and inflate to the tyre manufacturer’s recommended pressure range. For repeated punctures, inspect tyres and rims for damage or consider using additional protective measures such as puncture-resistant strips.