Still Wasting Money On Innertubes?

See how expert cyclists and professional riders avoid buying brand new innertubes all the time.

Innertubes can be costly, and when you're trying to bike on a budget, sometimes it's easier to just not - you know what I mean? With our Stop Flats and Stop Flats 2, you can avoid the hassle of constantly replacing your innertubes.

Stop Flats 2: The ultimate puncture-flat tool.

Protect yourself from punctured tires caused by broken glass, thorns, and road & trail debris. Stop Flat 2 is a dual layer tire liner that will give you the ultimate confidence, no matter where you’re riding. Available in 11 popular sizes. Also available in 10 pc bulk packaging. Made in the USA.

2X Tougher than our original Stop Flats!

Our StopFlats 2 is proven to be 2x TOUGHER than our original StopFlats! That means you can ride through your trail with confidence that with California Bike Gear at your side, you won't be getting a puncture flat any time soon.​

Lifetime Guarantee.

​If you get a puncture flat while using a StopFlats 2 tire liner, we'll send you a brand new innertube and liner FOR FREE! To take advantage of your warranty in the event of a (highly unlikely) puncture flat, send your punctured tube and liner to the California Bike Gear Guarantee Center.