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Old 08-01-14, 08:51 AM   #1
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Vittoria Pit stop for MTB tubeless flats

Just got my first set of tubless wheels/tires (Ibis 928, with Racing Ralphs snakeskin TL)

My understanding is that your options for fixing a flat on the trail are to add sealant, reinflate, and if that doesn't work to put a tube in.

Vittoria makes a product, Pitstop, which is both sealant and inflator in one, originally designed for Road tubulars.

I've used it with mixed success on tubulars, and less success on clinchers.

Wondering if anyone uses it on MTB tubeless?

It would definitely be quicker in a race, than removing the valve core, adding Stans, and reinflating, if it worked.
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Old 08-01-14, 09:25 AM   #2
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haven't tried the Pitstop - most tubeless loss of air issues while mountain biking come from burping out air either from big hits or running too low of pressure and corning hard etc. This is fixed easily by adding more air (as long as your make sure the bead is re-seated). If you have a slow leak it might be worth a shot with the pitstop - or do the Stans/valve core method. If its a immediate loss of air that you know is a puncture I'd go straight for a new tube and some kind of inner patch to the tire and get moving again. Carry a extra valve core with in case it gets plugged up by the Pitstop perhaps.
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Old 08-01-14, 10:17 AM   #3
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I am not sure if the Vittoria pit stop will work, but I don't think its really needed.

In a race situation, you already should have sufficient sealant in the tire. And if the sealant isn't sealing the puncture, you will have to either use a tube or try a genuine innovations tubeless tire plug to try and plug a bigger hole. Shooting in more sealant won't solve the problem.

Also, I know it sounds silly, but make sure there are no thorns or barbs sticking through your tires before you set them up for race day. I see it overlooked alot.

Even though the tire will hold air tubeless doesn't mean whatever is in the tire won't puncture the tube if you have to put one in during the race

Last edited by C Law; 08-01-14 at 10:20 AM.
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