Q:My 2013 Harley-davidson has 30,000 miles on it. Recently I felt a sudden violent shimmy as the rear wheel began to wobble from a worn bearing. I have friends who have 100,000 miles on their Harleydavidsons with the original bearings. On Facebook, others tell me they change them every other tire change as part of routine maintenance. What would you recommend? PHIL CENCI STATEN ISLAND, NY
A:You don't mention if you pressure-wash your motorcycle, but if you do, stop now and never do it again. The vast majority of wheel bearing “failures” are due to corrosion caused by water forced past seals into bearings. On recent models, Harleydavidson recommends checking wheel bearings for play or roughness at every 5,000-mile service. You certainly may replace them every other tire change (your mileage may vary), but given proper checks, why not save money and effort by continuing to use perfectly serviceable bearings?