Slime Self-Sealing Bike Tube

This tube is designed for 20-inch wheels with a tire width between 1.5 and 2.125 inches. Before purchasing, check the sidewall of your current tire to ensure your size falls within this range.

The tube comes pre-filled with a liquid sealant. When a puncture occurs, the air pressure inside the tube forces the sealant into the hole, creating a flexible, long-lasting plug that stops the leak instantly.

Yes, this tube uses a standard Schrader valve, which is the same type found on most car tires. You can easily inflate it at home with a standard bike pump or at a gas station air compressor.

This tube weighs 269.3 grams. While the pre-installed sealant does add some weight compared to a standard, non-filled tube, the trade-off is significantly reduced downtime from flat tires.

The sealant is designed to handle small punctures caused by thorns, glass, or road debris. It will not repair large gashes, sidewall tears, or major structural damage to the tube.