20.
0. HIGH-SPEED TIRE HIGH-SPEED TIRE CONSTRUCTION & FEATURES CONSTRUCTION INNER LINER A layer of rubber (inner liner) which replaces the inner tube is stuck to the inside wall of the high-speed tire. The inner liner is made of thick rubber, a material that high-pressure air can not pass through. The liner can not be lengthened like other inner tubes, so when nails are inserted into the tire, breaks will not be enlarged because the nails are suppressed to avoid air leaks.
20. HIGH-SPEED TIRE TIRE FLANGE BEVEL ANGEL If the tire flange radius is smaller than the wheel rim radius, the tire and wheel can be locked tightly. Take the advantage of tire bead bevel angle to enlarge tire bead so that the tire and rim can combine with each other precisely. Consequently, it can prevent air leaks and tire will not fall off the rim when tire break or low pressure occurs.
20. HIGH-SPEED TIRE RIM VALVE USED FOR HIGHSPEED TIRE Air-tight valve is specially designed for rim valve of a high-speed tire. AIR-TIGHT VALVE A rubber of special shape is used to cover around the valve hole. The spring of rubber can prevent air leaks. Install the valve from the inner side of the rim and then pull it out through the rim valve hole with a special tool. ＊ • Use only the KYMCO recommended air-tight valve.
20. HIGH-SPEED TIRE PRECAUTIONS FOR HIGH SPEED TIRE STORAGE STORAGE METHODS If the space within the tire bead of a high-speed tire is narrower than the width of its rim, it is hard to install the tire to the rim and pump air into the tire. Therefore, it is better to put cardboard within the tire bead and put tires in order. Tires deform easily if they are piled horizontally. Avoid doing so. As to the reused tires, the structure of the rim remains the same.
20. HIGH-SPEED TIRE HIGH-SPEED TIRE REMOVAL/INSTALLATION In comparison with the tube-tire, the following points must be noticed when removing and installing a highspeed tire. •When removing the high-speed tire, avoid damaging the tire bead (special plastic seat), tire liner (internal antileak material) and rim flange (bead base). •Apply vegetable soapy water to the contact area between the tire bead and rim, and use a tire iron for installation.
20. HIGH-SPEED TIRE TOOLS & PARTS REQUIRED FOR SERVICING Tire iron Wheel rim protector Knife Water pan and probe Vegetable soapy water Pressure gauge Valve core assembly tool Valve assembly tool Rim valve used for highspeed tire Valve core 11 High-speed tire High-speed tire Model: KYMCO DINK50 Tire size: 110/70-12 (Front) 130/70-12 (Rear) Make sure to use KYMCOrecommend high-speed tire and rim valve.
20. HIGH-SPEED TIRE REMOVAL METHODS Use the valve core assembly tool to take the valve core out and bleed air from the tire. ＊ When removing the valve core, be careful that the high tire pressure may force out the valve core. If there is no special tool to pry off the tire bead, use your feet to do this as the figure shown. ＊•Don‘t step on the wheel rim and spoke wire. •Before installing the tire, make sure that the rim and axle bearing are not damaged. Be careful during installation.
20. HIGH-SPEED TIRE Apply vegetable soapy water to the area between the rim and tire and install the rim protector at the rim side. Then insert the tire iron to pry off the tire bead from the rim. At this time, the tire bead at the back side of the valve is in the rim groove completely. After making sure the above mentioned is done, remove the tire by following the sequence of 1234. ＊ Do not use a tool other than the tire iron for motorcycle tire removal. Use the wheel rim protector for removal.
20. HIGH-SPEED TIRE The procedure is the same as and . If 1/3 of the tire bead is separated from the rim, the whole tire is easily taken off. When 1/2 of the tire bead is pried off the rim, the tire will be easily removed by using only one tire iron. The bead at the back side can be pried off in the same procedures described in _ .
20. HIGH-SPEED TIRE Take out the rim from the tire. Check the rim valve for damage. Replace any faulty parts. ＊ When the tire is replaced, replace the valve as a set. RIM VALVE REMOVAL Cut the rim valve from it bottom. ＊ Be careful not to damage the rim valve hole. RIM VALVE INSTALLATION Apply vegetable soapy water to facilitate the installation of rim valve. Apply after other foreign objects are removed. • Apply around the valve when installation.
20. HIGH-SPEED TIRE RIM AND TIRE INSPECTION RIM INSPECTION Check the rim and remove rust and rubber materials from the rim. Air leak will be caused by rim deformation or cracks. When the tire or rim has cracks, do not repair them and immediately replace with a new one. THE DEPTH AND WIDTH OF TIRE SCAR IS OVER 0.5MM AND 1.0MM TIRE INSPECTION The tire cannot be repaired and must be replaced with a new one under the following conditions. •Tire crack or break is caused by a foreign object of 6mm outer radius.
20. HIGH-SPEED TIRE Put the wheel horizontally and put the rim protector on the rim. Use 2 tire irons to install the tire bead into the rim slowly (30_ 50mm). Use 2 tire irons to install the tire bead for the last 50_ 60mm part. By this way, one side of the tire bead is installed. The installation of the other side of tire bead should be started from the opposite side of the tire valve according to the order of 1234.
20. HIGH-SPEED TIRE Install the rim protector and insert 2 tire irons at an interval of 30mm to install the tire bead into the rim. Press to hold the installed part of tire bead by knees. After 1/2 of tire bead is installed, insert 2 tire irons at an interval of 30_ 40mm to finish the installation in order. ＊ • Both tire irons should be pulled out at the same time. • The already installed part should be pressed.
20. HIGH-SPEED TIRE If 50_ 60mm of the tire bead is not installed, use 2 tire irons to install the rest part of tire bead. Use the valve core installer to install the valve core. Apply vegetable soapy water to both sides of the tire bead.
20. HIGH-SPEED TIRE In order to ensure that the tire and the rim are well combined, raise the wheel and rotate it. Press around the tire by hand for several times to see if the tire is perfectly combined with the rim. Pump the tire up to the specified tire pressure. If there is air leak between tire bead and rim after pumping, turn the valve down and press the upper side of the tire with hand to rotate the tire and pump the air in.
20. HIGH-SPEED TIRE HIGH-SPEED TIRE REPAIR Repair the tire using the repair methods and repair agents recommended by the manufacturers. REPAIR PROCEDURES First remove the tire from the wheel. Find the crack and mark it. Take out foreign objects and check if the tire can be repaired. Tire repair Repair methods are divided into external and internal repairs. Perform the external repair first and then the internal repair. When repair agent is used, follow the instructions provided by the manufacturer.
