Slime Self Sealing Tube

The tube comes pre-filled with Slime sealant, a liquid formula that sits inside the tube. When a puncture occurs, the escaping air forces the sealant into the hole, where it instantly clots to plug the leak and prevent further air loss.

This tube is designed for 29-inch tires with a width between 1.75 and 2.125 inches. Always check the sidewall of your current tire to ensure your size falls within this specific range before purchasing.

The sealant remains effective for up to two years. After that period, the sealant may dry out or lose its efficacy, and you should consider replacing the tube to maintain optimal puncture protection.

No, this specific model is equipped with a Presta valve. If your bike rims are drilled for Schrader valves, this tube will not fit properly without an adapter, and it is generally better to purchase the correct valve type for your rim.

Yes, because they are pre-filled with liquid sealant, these tubes are noticeably heavier than standard, non-sealant tubes. While this adds a small amount of rotating weight, most riders find the trade-off for flat protection to be well worth it.