RoadBikeReview.com's Forum Archives - Cyclo-Cross


Archive Home >> Cyclo-Cross(1 2 3 )


tufo tire sealant(4 posts)

tufo tire sealantbuffalosorrow
Apr 11, 2003 1:28 PM
how does this get into the valve?
does the tire need to be inflated or flat?
or did I miss the special tool at the LBS?
re: tufo tire sealantatpjunkie
Apr 11, 2003 6:25 PM
yes, special tool to remove stem core.little plastic gizmo should have been packed in with tires. Otherwise if you are planning on using on non-tufo tires or tubes you need type with removable stem cores. Tire is flat with core removed ( a redundancy I know) squeeze half a tube in each, put core back in, inflate and spin wheel. good for about 6 mos.
Things I learned about Tufo Sealanttriangleforge
Apr 14, 2003 1:37 PM
Learned a couple of new things about the Tufo sealant this Fall & Spring that I thought I'd pass along.

1) It's possible to put in a Presta valve tire that doesn't have a removable core. A little tricky, but nothing major. First, screw the presta valve locknut (not the thread-on ring that goes around the entire valve stem, but the one that's on the little rod that releases the valve) down a little, so the tip of the rod is exposed. File the end off the rod, so you're removing the mushroomed part that holds the locknut on. Remove the locknut. The valve core can now drop down into the tire, so press your finger (from the tread side, if you're doing a tubular; same idea if you're doing a tube) against the bottom of the stem so the valve can't fall all the way into the tire. Add the sealant (you'll probably need to release your finger just a bit, so it can go in, but not TOO much so the valve gets washed into the tube). Try to get as much sealant to dribble out of the stem into the tube as possible -- you won't get all of it, so it's going to be a little messy when you shake the valve core back down into place. Thread the locknut back on, stick the valve through a rim & thread the lock collar around the stem. Tap the end of the rod with a hammer, so it mushrooms over just a little bit again. You're done.

2) Tufo sealant does work just fine with latex tubes, as you'll find in a lot of high-end tubulars. BUT latex tubes will still lose air pressure gradually, and if the tubes go completely flat (say, like my road racing wheels over the winter), the latex tubes inside seem to flatten out and stick together. When I went to pump them up again before the road season started, I couldn't get any air into the tubes, except (apparently) into a tiny little latex pocket right at the valve. Unsupported by the tire casing, this little latex blister quickly popped. Two virtually new Vittoria CXs down the tubes, in one of the more expensive five minute periods I've ever spent...

Cheers!
Things I learned about Tufo Sealantjjohnson05
Apr 16, 2003 5:23 PM
Putting sealant into presta valved tires is FAR EASIER than explained above. Just cut a hole in the mouth of the tube small enough so that it can be threaded onto the main body of the valve stem. Open the valve as you would to inflate the tire. With the valve at the top of the wheel (12 o'clock), screw the tube of sealant onto the valve stem. Rotate the wheel so that the stem is at 3-4 or 8-9 o'clock. Gently squeeze half of the tube of sealant into the tire. Remove the tube from the stem. Return the valve to the 12 o'clock position and inflate the tire. Give the tire a good spin and you are done. I've been doing this for years with very good luck on all sorts of tubular tires; cyclocross, track and road racing.

Always keep some air in your tubular tires. Even without sealant, the tubes may stick together when left uninflated for a long period.