User manual BONTRAGER TUBELESS

[. . . ] When these features are all in order, no tube is needed. Just install a special presta valve stem into the rim, and inflate. A properly mounted tubeless tire will `bleed' air, up to 4 PSI (0. 25 ATM) per day. If a tubeless tire loses air faster than 4 PSI (0. 25 ATM) make sure the valve nut is tight, check for punctures, and make sure all sealing surfaces are smooth and clean. [. . . ] Make sure the rim strip lies centered in the rim well, with no wrinkles or unevenness. Presta nut Tubeless valve nut Slot Make sure the rim strip covers all of the spoke holes or spoke heads. If they are exposed they may allow air loss, or puncture the inner tube, and may cause loss of control resulting in personal injury. Lay one tire bead into the center of the rim well. Start opposite the valve to give the tire beads the maximum slack. If you start at the valve, the bead will lie on top of the valve. With the bead on top of the valve, some slack will be taken up which is needed to lift the tire bead over the rim shoulder (Fig. 2). Note: If desired, the tire bead can be lubed with soapy water to aid in tire installation and seating of the bead. Start opposite the valve again, and install the second tire bead. Before installing the last 10 inches (25cm) of the second bead, pivot the beads so the second bead is at the bottom of the rim well. With the additional slack afforded by this bead placement, finish installing the second bead until it is completely in the rim well. Inflate the tubeless tire Too tight Note: If you choose to use tools to mount the tire, be careful not to mar the rim or abrade the tire as this could reduce the required ability of the rim to seal to the special beads of a tubeless tire. Tip: During initial inflation it may be helpful to hold both beads, adjacent to the valve stem, up and out of the center channel with your fingers. This will help remove any gaps between the tire beads and rimstrip. 1. The tubeless valve stem works just like a standard presta valve. 1), and use a pump with a presta fitting. Initially, its best to inflate the tubeless tire as rapidly as possible. This forces the beads out to the rim hook where they will seal (Fig. With the tire beads sealed to the rim hook, inflate the tire to about 60PSI (4 ATM) until the tire beads lock into the rim well (Fig. Visually check that the beads are seated correctly in their locked position(Fig. Most tires have lines or marks running around the casing, just above the bead. When correctly installed, these lines are at an even distance from the rim. When the beads are correctly seated all around the rim, inflate (or deflate) to the desired pressure. Fig. 2 Failure to maintain a minimum tire inflation of 30PSI (2ATM) may result in rapid deflation causing a loss of control resulting in personal injury. Bead lock WARNING Fig. [. . . ] Align the rim valve hole and rim strip valve hole. Place the special tubeless valve (or a similar item) through the rim strip valve hole, and then the rim. The `U' shape of the rim strip should face the same direction as the `U' shape of the rim well (Fig. Work the rim strip into the rim, moving away from the valve stem in both directions. [. . . ]