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good idea to put in a new tube and rim strip when mounting tires on tube type rims. Old inner tubes can stretch and can get creases in them when mounting them inside a new tire. Make sure that the tube is the right size for the application, and not just the same size as what came off if it is a used bike. Sometimes people don’t pay the best attention, or don’t have the correct size available, so make sure to

designations on rubber type among things depending upon the manufacture. While it is still cold, check out your rubbers, wheels, spokes, and make sure you are ready to roll when the weather breaks. Ride Safe! Vernon

research the proper size. Storage options for the off season are pretty limited. It is not easy to just take them off and bring them in your house, but there are a few things that can be done to help prolong their useful lives. Try to keep them out of sunlight as that can degrade the rubber and cause weather checking. Oil, solvents, moisture, and extreme temperatures can also take their tolls on the rubber. If possible, taking the weight off the tires during winter storage can help keep them serviceable for a longer period. When you get a new set of tires, they have a slick exterior appearance to them. This is generally a protective film, or cleaner that has been applied at a retailer. This can be a little slippery at first, so take it easy for about the first 100 miles or so to run them in. This does not mean that you cannot corner, but until the new tires are run in, the slickness may cause you some problems. Try to avoid any sudden changes of speed or direction. Take corners, accelerating, and braking easy until the run in period is complete. The numerous sets of numbers and letters on the side of a tire can be quite confusing. Here is just a little bit of information for you to chew on. In the picture there is a 120/70ZR17 tire shown. The first number (120) is the width of the tire in millimeters. The (70) is the aspect ratio between the height and the width of the tire, which means that this tire is 70% as tall as it is wide. As far as the letters the (Z) is the speed rating, and the (R) indicates a radial tire. Speed ratings are variable per the type and design of the tire, and the (R) is one option, with a (B) for Bias ply the other option common on motorcycles. Another item on the sidewall is a designation for a (TT) or tube type, or (TL) for tubeless. Other designations on the tire can include things such as manufacture date codes, load ratings, and Thunder Roads Magazine of Iowa on Facebook

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TRMI FEBRUARY 2015 - 37

Thunder Roads Magazine of Iowa February 2015  
Thunder Roads Magazine of Iowa February 2015  

Iowa's Biker Magazine. About Iowa, For Iowa, From Iowa.

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