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Slime inner tubes - any good?(8 posts)

Slime inner tubes - any good?Saddle_Sore
Dec 8, 2003 2:16 AM
Saw these in my LBS and thought that they might be worth a punt, although they cost a few more quid than normal inner tubes? Anyone used them before and if so, are they worth it?
re: Slime inner tubes - any good?swimbikerun75
Dec 8, 2003 7:10 AM
In Arizona they're worth their weight in gold. I've found that I don't usually get flats until after a year and a dozen or so thorns, and even then it's a slow leak that caused a flat BEFORE my ride instead of on the trail.
don't like Slime, do like Specialized Airloksterry b
Dec 8, 2003 7:56 AM
living where I do, at the center of the Thorn Universe, I can barely ride down the street in the fall and winter without getting a puncture.

My experience with Slime brand tubes has not been positive - the green goop jams presta valves. The Specialized Airlok though has a less viscous sealant and it works really well. When I finally do get a fatal puncture, I find on average, 10-15 sealed punctures. You can get them at any LBS that is a Specialized outlet or on Specilaized's web site. Tad more expensive, but if you have a chronic problem with flats due to thorns - they're a lifesaver.
Second that... nmtorquecal
Dec 8, 2003 7:48 PM
Great w/small holes; I've had problems patching big onesCory
Dec 8, 2003 9:08 AM
I live in Big Thorn country, too, and Slime works well on pinprick punctures. Where I've had problems is when a hole is big enough that the gunk leaks out and gets on the outside of the tube. It's only happened a few times, but on the road, I've had a hard time cleaning it off well enough that a patch will stick. When you sand the surface, or after you apply the patch and try to press it down, it squeezes the Slime out and lifts the patch.
Piece of garbage.Alexx
Dec 8, 2003 2:48 PM
Not only does slime do a lousy job of plugging holes at pressures over 50 psig, but it also solidifies when cold, leaving you with no protection, and a lumpy tire to boot.
Only works if the tube is the proper size.Humma Hah
Dec 8, 2003 4:10 PM
Slime will slow the leaks of small punctures from things like thorns and glass, but only if the tube does not have to stretch to fill the tire casing. If the tube is stretched, the hole will expand and Slime won't help.

Slime also lubes the inside of the tube a little, helping prevent pinch flats.

I have also had the stuff CAUSE a flat, when the fibers in it fouled up a valve stem so it wouldn't hold air.

I've never used the pre-slimed tubes, but for Presta-valve tubes its probably the only way you could use the stuff.
re: Slime inner tubes - any good?Saddle_Sore
Dec 9, 2003 1:57 AM
Okay, thank you for all the views. It sounds as though I'd be better off getting an armoured tyre instead :-|