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 high- speed tire. ·When removing the high-speed tire, avoid damaging the tire bead (special plastic seat), tire liner (internal anti-leak 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. ·It will cause tire deformation when removing the tire forcedly as the figure shown. Be sure to remove the tire following the instructions given in the manual. ·The tight joint of tire and rim can prevent air leaks. As long as the rim is deformed, air leaks will occur easily. Therefore, do not remove or install the tire forcedly. Use special tools and rim protector for servicing. Frequently check if there is any deformed part and do not use tools of poor quality. ·Rust and rubber materials on bead base are the main cause of air leaks. Remove them thoroughly. ·Be sure to remove and install the tire following the procedures provided in the manual. · When removing or installing a high-speed tire, do not damage the axle bearing. Draw or pull the rubber on the rim lower part. · It is difficult to remove a tire when the rim valve is pressed by tire flange. In this situation, do not remove it forcedly because the rim valve hole will be damaged. 20-5