Saturday, May 28, 2005
Recommended UST Tire pressure (30 to 60 psi)
UST TUBELESS rim and a sealed valve
Here is some details to easily mount a UST Tubeless tire:
1 - Use a sponge to wet the surface of the rim with soapy water (ordinary water is better than nothing).
2 - Follow the mounting procedure as laid out below.
3 - Pump energetically at the beginning, especially if using a mini-pump.
4 - The beads will lock into place behind the humps, a "popping" sound is sometimes heard which indicates this. Look carefully at the indicating line all around the tire which should be fully visible on both sides.
5 - In order to be 100% sure that the beads are locked into place, deflate the tire and the beads should stay locked in place even with no air in the tire.
6 - Then pump up to the required pressure (recommended pressure is between 2 to 4 bars or 30 to 60 psi).
Mounting
Insert the first bead in the bottom of the groove. For the second bead, start on the opposite side of the valve. Mounting is done without using tools. Insert the second bead in the bottom of the groove. Finish at the valve. The tire must fit snugly in the bottom of the groove before inflating.
Removal
Deflate the tire. Then beginning at the point opposite to the valve, unlock one side of the bead by forcing it into the gorge of the rim. Continue in this fashion around the rest of the tire. Without using tire levers, pull only the first side of tire over the top of the rim around the whole rim circumference. Unlock the second bead by pushing it into the rim gorge and continue round the whole rim circumference. Remove the tire.
Note
Checking the seal of a UST system (UST Tubelesswheel or rim + UST Tubelesstire)
- Verify the external state of the tire (gashes etc…).
- Verify the perfect seating of the tire beads: over-inflate the tire by 10% more than the maximum pressure indicated on the side of the tire and then deflate completely: the tire beads must remain locked on the rim.
- Check the cleanliness of the internal side of the tire and of the rim (eventually clean up with a rag).
- Check the state of the tire beads and the rim sidewalls.
- Re-install the tire, having moistened the bottom of the rim with soapy water.
- Inflate the UST Tubelesssystem to 3 bars (45psi) of pressure, immerse the bottom of the wheel in a bowl of water or spray a leak detector on the tire/rim joint to find the possible leak.
- Install a new tire that you know is perfectly sealed.
- If the leak is revealed around the valve hole, remove the valve, put grease on the rubber part of the valve in contact with the rim, and mount the valve again.
If, after having carried out these checks, the sealing of the UST Tubelesssystem is not acceptable, please consult your local MSC.
http://www.mavic.com/servlet/srt/mavic/vtt-tech?lg=uk
Here is some details to easily mount a UST Tubeless tire:
1 - Use a sponge to wet the surface of the rim with soapy water (ordinary water is better than nothing).
2 - Follow the mounting procedure as laid out below.
3 - Pump energetically at the beginning, especially if using a mini-pump.
4 - The beads will lock into place behind the humps, a "popping" sound is sometimes heard which indicates this. Look carefully at the indicating line all around the tire which should be fully visible on both sides.
5 - In order to be 100% sure that the beads are locked into place, deflate the tire and the beads should stay locked in place even with no air in the tire.
6 - Then pump up to the required pressure (recommended pressure is between 2 to 4 bars or 30 to 60 psi).
Mounting
Insert the first bead in the bottom of the groove. For the second bead, start on the opposite side of the valve. Mounting is done without using tools. Insert the second bead in the bottom of the groove. Finish at the valve. The tire must fit snugly in the bottom of the groove before inflating.
Removal
Deflate the tire. Then beginning at the point opposite to the valve, unlock one side of the bead by forcing it into the gorge of the rim. Continue in this fashion around the rest of the tire. Without using tire levers, pull only the first side of tire over the top of the rim around the whole rim circumference. Unlock the second bead by pushing it into the rim gorge and continue round the whole rim circumference. Remove the tire.
Note
Checking the seal of a UST system (UST Tubelesswheel or rim + UST Tubelesstire)
- Verify the external state of the tire (gashes etc…).
- Verify the perfect seating of the tire beads: over-inflate the tire by 10% more than the maximum pressure indicated on the side of the tire and then deflate completely: the tire beads must remain locked on the rim.
- Check the cleanliness of the internal side of the tire and of the rim (eventually clean up with a rag).
- Check the state of the tire beads and the rim sidewalls.
- Re-install the tire, having moistened the bottom of the rim with soapy water.
- Inflate the UST Tubelesssystem to 3 bars (45psi) of pressure, immerse the bottom of the wheel in a bowl of water or spray a leak detector on the tire/rim joint to find the possible leak.
- Install a new tire that you know is perfectly sealed.
- If the leak is revealed around the valve hole, remove the valve, put grease on the rubber part of the valve in contact with the rim, and mount the valve again.
If, after having carried out these checks, the sealing of the UST Tubelesssystem is not acceptable, please consult your local MSC.
http://www.mavic.com/servlet/srt/mavic/vtt-tech?lg=uk
# posted by Webmaster_Ecociclista @ 9:12 AM 
