Mountain Biking - Preventing thorn flats?

Is there something I can use to help prevent flats from thorns? I've had three in less than a week and it sucks.

Maybe something like SpinSkins (http://www.spinskins.com/)

or

Slime Single Liner (http://www.performancebike.com/bikes/Product_10052_10551_1035352_-1___20004)

+1 on the Kevlar Spinskins. I've used 'em and was happy with 'em.

Sorry. Forgot to add that it's a 29'er

The Slime tire liners work.

I used those, with a combination of those superthick "armored" tubes with the slime tube sealant inside them for a while. Never had any flats, just the tires were a lot heavier...

I ditched the real heavy stuff when I started racing.

So could I possibly buy three of these for two 29" wheels? Use one strip as a cut and patch piece to fill the gap of putting a 26" liner in a 29" wheel?

For years I've been using previous flatted tubes to line my tires. Slice a tube all the way around the inside like it were a fish being gutted. Snip the stem off. Stick it in the tire. Take another tube that will be inflated and line the inside of the sliced tube with the good tube. Make sure it's partially inflated so it holds the sliced tube in place as you install the good tube. Seat the tire, inflate to desired pressure. I've put up to three of these in my tires at different times. Once in a while, inspect te tire for intrusions that may penetrate but don't puncture. 1 tube=$3. Very cheap protection.

An advantage is that the first liner will usually stick to the inside of the tire after it's been in there awhile. Seldom do I flat, and even less do I patch.

I agree with the above comments. The spin skins are a great investment.

I agree with the above comments. The spin skins are a great investment.

But I have a 29'er.

But I have a 29'er.

Wow, I've been browsing the internet and haven't found squat for a 29'er. The only thing I could recommend would be a self sealing smart tube??? I have these on my road bike because my tires are JUNK and they've been holding out.

Just a thought.

I'll keep looking for stuff and I'll check around at our LBS to see if they can recommend anything.

Stan's Boogers

Wow, I've been browsing the internet and haven't found squat for a 29'er. The only thing I could recommend would be a self sealing smart tube??? I have these on my road bike because my tires are JUNK and they've been holding out.

Just a thought.

I'll keep looking for stuff and I'll check around at our LBS to see if they can recommend anything.

Thanks. As of now it's looking like the tube inside a tube deal would be the best idea. That or buying the anti puncture tape and getting a third set to use to patch the portion that's going to have no coverage.


Satan's Boogers

That's against my religion.

Thanks. As of now it's looking like the tube inside a tube deal would be the best idea. That or buying the anti puncture tape and getting a third set to use to patch the portion that's going to have no coverage.



That's against my religion.

Like I said, 'been doing it since I was a kid, that's at least 40 years. In the past 10 years, I've had probably 3-4 flats (really) and I've done a lot of off road. Used to ride above Goldbar, WA. Every weekend. 200 miles a week, to and from work and 140 mile weekends.

I still do it. Cheapest, best way to go.

Use thick tubes.