Member Contributer BusyLittleShop Posted July 1, 2007 Member Contributer Share Posted July 1, 2007 I got a Dunlop Qualifier last season around August. Since then I have put 4500 miles or so on my bike. Is this normal tire wear for this amount of miles? If not....what could have caused this? Since tire wear is the actual removal of rubber from your carcass.... I'd say after looking at your rear tire that the center went first and this is often exaggerated because acceleration, engine braking and real braking scuff off the upright rear tire. Each time you downshift, upshift, roll on the throttle or roll off the throttle, you will scuff the rear tire at the contact patch. The rear is your drive tire and at speed this rear contact patch is the only thing that keeps you going straight... getting a tire down to the cords doesn't mean it's a going to pop but it does mean the rear will slide more under acceleration and especially during braking... cord rubber feels wooden and offers no grip... but you'll be fine once you lean over to the unused edge... Link to comment Share on other sites More sharing options...
Member Contributer jeremy556 Posted July 1, 2007 Member Contributer Share Posted July 1, 2007 I think you should stay closer to Honda's recommended pressures for the street and drop about 5% to 8% for the track... Underinflated tires can result in imprecise cornering, higher running temperatures, irregular tread wear at the edge of the contact patch, fatigue cracking, overstressing and eventual failure of the tire carcass. You should tell the race tire reps and distributors about that :rolleyes: Link to comment Share on other sites More sharing options...
Member Contributer BusyLittleShop Posted July 2, 2007 Member Contributer Share Posted July 2, 2007 You should tell the race tire reps and distributors about that :goofy: You should know that race reps and distributors go straight to the manufactures for factual information... Quote Metzeler: "Many tyre damage result from incorrect inflation pressure. Furthermore, the inflation pressure has a big influence on the riding qualities of a motorcycle. The inflation pressure recommended by the motorcycle manufacturer can be found in the bike's manual and is usually written on a sticker on the rear swingarm or chainguard. Set the suggested inflation pressure on cold tyres before riding." Quote Bridgestone: Always keep the motorcycle manufacturer's recommended air pressure in both tires. This is an important requirement for tire safety and mileage. Your motorcycle owner's manual will tell you the recommended cold inflation pressure. On some motorcycles, the recommended front and rear tire pressures will be different. The pressures stamped on the sidewall of the tire are only for maximum loads. On some occasions, these pressures will also be the manufacturers recommended settings as well. Riding on tires with too little air pressure is dangerous. The tires will build excessive heat. This can cause a sudden tire failure that could lead to serious personal injury or death. Underinflation may also: Damage the tire leading to tire failure Adversely affect vehicle cornering Reduce tire life Increase fuel consumption Fatigue cracking Quote Michelin: The tyre needs air to perform and to last, so it's necessary to check inflation pressure regularly. Every tyre loses air, molecule by molecule, because of rubber's natural porosity. Accidental causes such as valve or rim damage often accelerate air loss, as will small cuts in the tyre tread or sidewall. Air pressure affects every aspect of the tyre: safety, economy and riding enjoyment. The wrong pressure can degrade performance in all areas. Routine pressure checks can prevent many worries. Quote Dunlop: CHECKING TIRE PRESSURES IS THE MOST IMPORTANT TIRE MAINTENANCE FUNCTION YOU CAN PERFORM. For high-speed, fully loaded or dual-riding touring motorcycle applications, inflate front tires to maximum recommended by vehicle manufacturer for Dunlop fitment and rear tires to maximum load inflation pressure on sidewall. Rear touring tires must be inflated to a minimum of 36 psi for light to medium loads and 40 psi for dual riding and other loads. Never exceed maximum load indicated on tire sidewall or vehicle capacity load found in owner's manual. Underinflated tires can result in imprecise cornering, higher running temperatures, irregular tread wear at the edge of the contact patch, fatigue cracking, overstressing and eventual failure of the tire carcass. Link to comment Share on other sites More sharing options...
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