Fitting the tubular
Before you start
Make sure the wheelrim is the proper size for tubular. Use only Mastik or other specifically designated tubular rim cement.
Gluing and mounting
1 Lightly abrade the rim base to provide a key for the cement, clean with gentle solvent, and leave to dry. (Carbon rims: follow manufacturer’s instructions, or just clean with soapy water.)
2 Clean the base tape of the tubular with just soapy water and a gentle cleaner (no solvent) and let dry.
3 Spread a thin layer of Mastik over the rim, and over the base tape.
4 After 5–10 minutes, apply a second coat of Mastik to the rim only.
5 Leave to dry for 3–5 minutes.
6 Mount the tubular on the rim, inflate slightly, and center it.
7 Inflate the tubular to working pressure. Mastik reaches its full strength after about 24 hours.
8 Before each ride, check pressure and inflate tubular to the pressure indicated on the sidewall.
Important note: Inspect frequently for cuts in the casing, and to assure that the base tape is completely attached to the tubular end and free of cuts or fraying. Do not use the tubular if the base tape is fraying or separating from the casing or rim.
Keep tubulars in a dry place and, importantly, out of the light. After riding, remove debris such as metal, glass, flints, or anything stuck in the tread. Clean with water and mild soap such as
washing-up liquid – avoid products containing hydrocarbons, dilutants, or corrosive substances.
When not in use, tubulars should be kept inflated to 5–6 bar (70–90 psi) and suspended (to avoid causing ‘flat spots’).
How does the red valve work? Why I can’t unscrew the valve?
Our top range tubulars utilize a new type of unique valve with a fully removable valve stem, red anodized.
The entire valve (shaft and core) is removable at the base and it allows for a lighter, more air tight extended valves (available 36-42-60-80-110mm) and more balanced wheel spin.
Warning! Screw the valve by hand and with the appropriate plastic tool! Over tightening it would cause damage at the base o-ring, resulting in heavy air leaks.
What is the purpose of a rim nut?
The rim nut is there to avoid the valve stem to create noise when the wheel spins and when the low pressure would make the valve to fall inside the rim cavity when attaching the pump connector.Warning! The rim nut must only be tightened by hand. Never tighten the rim nut with pliers, as this can lead to tube damage.
How often should tire pressures be checked?
The inflation pressure should be checked and adjusted on a regular basis. Even the best inner tubes constantly lose pressure as, contrary to car tires, pressures in bicycle tires are much higher and wall thickness much thinner. A pressure loss of 1 bar per month can be considered as normal for butyl tubes, while latex tubes can decrease their pressure even of 1,5 bar every 8 hours (4,5 bars in 24h) and checking and adjusting the inflation pressure before every ride has to become an habit.
Warning! Pressure loss will be much faster with starting high inflation pressures and much slower with low inflation pressures. Use a pressure gauge to monitor the inflation pressure and always verify with the TPI casing.
Is there a way to prevent the typical inflation pressure loss of latex inner tubes?
We recommend to use a Pit Stop Road Racing cartridge or a liquid latex to be injected into the valve core with a syringe after removing the core itself. It seals the typical porosity of the latex walls, preventing annoying inflation pressure loss and adding the puncture prevention feature that the liquid latex uses to guarantee.
Can I use the Pit Stop Road Racing with Schrader valve?
The universal head is compatible with Presta and Schrader valves so it is able to inflate almost every standard of the market.
How do I use the Pit Stop road racing?
The Pit Stop road racing cartridge needs to be used with the tubular/clincher completely deflated to let the latex get in.
You need to inject it keeping the cartridge perpendicularly to the valve, positioning it at the top fully open and cleaned from any debris or dirt. Push the adapter onto the valve with strength and keep it for about 50″ until the cartridge sounds empty. The latex rumor while getting in is pretty recognizable so you can easily realize when it is finished.
Warning! The cartridge gets cold during the injection and it could be fastidious to hold, it’s always better to wear your riding gloves to hold the can.
Check the inflation pressure and re-check it after a couple of days and if necessary add some more pressure with a normal pump.
On the side of the cartridge there are few graphics instruction to help it out.
Does a tire/tubular get old? How can I properly store it?
The properties of our high quality rubber last for even 10 year if the tire is properly stored. In order to do that, keep tires on a dry place without too much temperature and humidity variance and, of much importance, away from sunlight and any UV ray light as Neon lamps and some others.
The presence of little splits and cuts on the tire surface even if not used means that the rubber has not been well stored. The outer surface could become eventually coated of a thin white layer of vax: remove it before using the tire in order to prevent poor grip on the first pedal strokes. Tires are well stored when slightly inflated or anyhow in a good shape if not mounted, avoiding too much deformation or foldings.
Fitting the tire
Before you start
Make sure the wheel rim is the right size for the tyre and the inner tube before fitting. Ask your authorized Vittoria dealer if you are not sure.
Mounting the tyre
1 Fit a good-quality rim tape of the right size, that completely covers the spoke holes. Ask your dealer if you’re not sure!
2 Fit one bead of the tyre on to the rim. Inflate the inner tube just enough so it is round, and fit the valve of the tube through the hole in the rim. Starting from the valve, push the tube gently up into the tyre.
3 Starting from opposite the valve, push the other bead on to the rim with your thumbs. Work around the rim in both directions with your thumbs, pushing the bead over the rim. Finish from both sides of the valve, deflating the tube when it gets hard to push more of the tyre on to the rim. Using this method, you can often install the tyre without tools.
4 If the last bit of bead won’t snap into place, deflate the tyre a bit more, push both beads down into the well of the rim all the way round the tyre, and try again. If this still doesn’t work, you may have to use tyre levers to lever the bead on. Take great care not to pinch the tube.
5 Make sure the tube is not trapped between rim and tyre, and the valve is straight. Slightly inflate tyre (1 bar/15 psi), and reseat the valve stem by pushing up on the valve. Rotate wheel to
check the tyre is seated correctly and runs true. If it’s not, work the beads firmly down into the well of the rim by hand.
6 Inflate the tyre to the indicated pressure, ideally using a pressure gauge.
Keep tyres in a dry place, and (very important) out of the light. After riding, remove debris such as metal, glass, flints, or anything stuck in the tread. Clean tyres with soapy water. Even if the bike is not in use, keep the tyres slightly inflated. Turn the wheels from time to time to avoid ‘flat spots’ developing in the tyres.