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Summary: Get tips and advice on checking your motorcycle break rotor for signs of wear or indications of possible replacement needs with this free automotive video clip.
Views: 2,064 | Tags: , free, repair, videos, motorcycle, maintain, automotive, brakes, motorcycles, motorcycle maintenance
About the Expert
Seth Williams Seth has been working on motorcycles and ATVs since he was 13. He trained at Motorcycle Mechanics Institute of AZ. and currently works at D-K Service in Cotto... read more
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Questions & AnswersOn behalf of Expert Village my name is Seth Williams. I work for D-K Service and I am here to tell you about simple street bike brake repair and inspection. As you can see here this is the brake rotor. This particular brake rotor is bad. You can tell if you run your fingernail across it there is going to be a little bit of scoring on this but what we're mainly concerned about is this brake pad deposit that you are going to see along the outside of this. That could cause the brakes to lock up, it could cause them to pulse, feel funny when you apply the brakes. If you look over here you are going to see this shiny glazed surface. That's what we call glazing or mirroring. When you get that you will get a ton of brake fade so you want to be especially careful of that and make sure they don't glaze over. Simple ball hone on a drill can buff that out really easily. Brake pads here, you can tell these are good, they've got minimal scoring from the brake rotor itself. It's using about half of it. You can tell here by this buffing here from the factory that right on the inside of the brake rotor you've got a little warping going on or a little concave in the brake rotor and that's why we know that this particular rotor needs to be replaced. If I flip these over, you see these circles indented into the backing plate. This is a special compound of metal that goes into the brake pad so far that when it goes down to a wear limit, these are called warning pads and they will actually cause the brakes to squeak and feel rough. That's when you know you need to replace the brake pads. These particular brake pads are new. As you can see they've got quite a bit of life left on them but you can also see that there is a minimal gapping up at the top that's going to show that these brake pads are wearing incorrectly due to a bad rotor that needs to be replaced. This particular rotor that needs to be replaced is going to have to be replaced also with the wheel. These five bolts that hold the brake rotor on are seized into the wheel itself, so this brake rotor needs to be replaced with a wheel or these need to be drilled out and removed.
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