Slime Smart Tube Inner Tube

The tube is pre-filled with Slime's Fibro-Seal liquid. When a puncture occurs, the escaping air forces the sealant into the hole, where it builds a flexible, long-lasting plug to stop the leak instantly.

This specific model is designed for 26-inch wheels. Please check the sidewall of your current tire to confirm your wheel diameter before purchasing.

This tube is equipped with a Dunlop valve. Ensure your bike rim is compatible with this valve type, as it differs from the more common Presta or Schrader valves found on many modern bikes.

The sealant formula is non-toxic and environmentally friendly. While it is a liquid, it is contained within the tube, so you shouldn't encounter any mess unless you experience a significant puncture that requires a tube replacement.

While the sealant adds a small amount of weight compared to a standard, empty tube, it is negligible for most recreational and commuter cyclists. The trade-off is a significant reduction in the time and hassle spent fixing flats.