Bicycle Inner Tube Patches [No Password]

This is the most important step. Use the small square of sandpaper in your kit to roughen the area around the hole. This removes the slippery molding agents from the factory and gives the cement a textured surface to grip.

Not every tube can be saved. Replace the tube instead of patching it if: The hole is on a seam. The damage is at the base of the valve stem.

These kits come with a small tube of "rubber cement." This isn't actually glue; it’s a chemical agent that melts the patch and the tube together into a single, seamless piece of rubber. Once cured, the patch is often stronger than the rest of the tube. How to Patch a Tube in 5 Steps Bicycle Inner Tube Patches

Spread a thin, even layer of the fluid over an area slightly larger than the patch. Wait 2–3 minutes. The fluid needs to be "tacky" or nearly dry to the touch before you apply the patch.

These are essentially heavy-duty stickers. They are incredibly convenient and fast, but they are generally considered temporary. Over time, the adhesive can dry out or peel, so they are best used to get you home. This is the most important step

Before you start, you need to know which tool you’re using.

Pump some air into the tube. Listen for a hiss or feel for airflow. If you’re at home, submerge the tube in water; a stream of bubbles will pinpoint even the tiniest "slow leak." Not every tube can be saved

Here is everything you need to know about bicycle inner tube patches. The Two Types of Patches