StPeteXX Posted March 8, 2007 Share Posted March 8, 2007 I finally noticed a significant vibration from the front end yesterday after getting a new tire installed (dunlop qualifier). I had noticed a slight vibration before the new tire, but yesterday is was considerable. It is most noticeable from 10-0 mph. The bike is a 1997 with about 15k miles. I'm guessing new pads and can the rotors be turned? Looks like I'll be driving the car to the Daytona 200 instead of ridding. Call me paranoid I guess. I don't like taking chances when something doesn't feel right. Thanks in advance everyone. Rich Quote Link to comment Share on other sites More sharing options...
Northman Posted March 8, 2007 Share Posted March 8, 2007 Sounds like one of your rotors is bent. You'll have to replace it, as they are too thin to machine, and you can't machine out a warp, anyway. Quote Link to comment Share on other sites More sharing options...
StPeteXX Posted March 8, 2007 Author Share Posted March 8, 2007 Sounds like one of your rotors is bent. You'll have to replace it, as they are too thin to machine, and you can't machine out a warp, anyway. What would cause the rotor to bend? Bike has never been down and I am not "hard" on the breaks. Rich Quote Link to comment Share on other sites More sharing options...
Northman Posted March 8, 2007 Share Posted March 8, 2007 What would cause the rotor to bend? I would guess the tire replacement may have had something to do with it. Who mounts your tires? Quote Link to comment Share on other sites More sharing options...
airborneXX Posted March 8, 2007 Share Posted March 8, 2007 Sounds like one of your rotors is bent. You'll have to replace it, as they are too thin to machine, and you can't machine out a warp, anyway. What would cause the rotor to bend? Bike has never been down and I am not "hard" on the breaks. Rich A ham fisted jackass at the shop. He either pushed the tire iron into the rotor when taking the tire off, or when breaking the bead he had the rotor on the floor supporting the wheel instead of using blocks to support the wheel. The rotor carriers bend very easily. Quote Link to comment Share on other sites More sharing options...
StPeteXX Posted March 8, 2007 Author Share Posted March 8, 2007 Sounds like one of your rotors is bent. You'll have to replace it, as they are too thin to machine, and you can't machine out a warp, anyway. What would cause the rotor to bend? Bike has never been down and I am not "hard" on the breaks. Rich A ham fisted jackass at the shop. He either pushed the tire iron into the rotor when taking the tire off, or when breaking the bead he had the rotor on the floor supporting the wheel instead of using blocks to support the wheel. The rotor carriers bend very easily. Had the tire changed at the dealer. Anyone with rotors to sell ?? Rich Quote Link to comment Share on other sites More sharing options...
StPeteXX Posted March 8, 2007 Author Share Posted March 8, 2007 I called the dealer today and explained the situation. They are going to pick it up tomorrow and take a peek. Fortunately, I spoke to the service guy that rode my bike from the front service drop off to the actual servicing area. He was very neutral on saying if he noticed anything. Of course there wasn't anything to notice. I wish he would have been the one to have rode it back around the front after the tire change. He seemed to suggest a bearing might not be tight or even a bad tire. We'll see.... All I know is that it fucked my ride to Daytona. Maybe it's for the best though. Something bad might have been "around the corner" for me this weekend. Rich Quote Link to comment Share on other sites More sharing options...
scottw Posted March 9, 2007 Share Posted March 9, 2007 Some people have had success straightenibg bent rotors. You need to get the wheel off the ground to let the wheel rotate. Then find the low/high spot with a dial indicator. "Tweak" the low spot out useing a adjustable wrench, going slowly and checking the runout. A lot cheaper than new rotors and you never know if a used rotor is in spec or not. The manual specifies a max runout of .012 in. Quote Link to comment Share on other sites More sharing options...
StPeteXX Posted March 11, 2007 Author Share Posted March 11, 2007 The dealer picked the XX up on Friday. When I backed it out of the garage I could definetly hear something rubbing. Never heard that sound prior, or anything like it. My concern is that the dealer will say it wasn't anything that they did and won't take care of the problem. You know how that goes... "Sorry sir, what we found to be the problem wasn't anything that we did" speach... Any suggestions on what to do if then? I've never had an issue like this with a dealer, car or motorcycle. The bike didn't make any noises or feel like the front end was going to shake off the frame before the tire change. Rich Quote Link to comment Share on other sites More sharing options...
jcrich Posted March 11, 2007 Share Posted March 11, 2007 The dealer picked the XX up on Friday. When I backed it out of the garage I could definetly hear something rubbing. Never heard that sound prior, or anything like it. My concern is that the dealer will say it wasn't anything that they did and won't take care of the problem. You know how that goes... "Sorry sir, what we found to be the problem wasn't anything that we did" speach... Any suggestions on what to do if then? I've never had an issue like this with a dealer, car or motorcycle. The bike didn't make any noises or feel like the front end was going to shake off the frame before the tire change. Rich Your a LEO, wear your uniform there. They wouldn't BS a cop. would they? Quote Link to comment Share on other sites More sharing options...
StPeteXX Posted March 11, 2007 Author Share Posted March 11, 2007 Your a LEO, wear your uniform there. They wouldn't BS a cop. would they? That's "Administrative Communications Officer".....Administrative staff now....just for clarification. This month does make 14 years..God, I'm feeling old !!! I suspect that I'll find out tomorrow what the deal is. I would like to be prepared in the event that I'm told "It's not a dealer caused issue....blah blah blah." Rich Quote Link to comment Share on other sites More sharing options...
Northman Posted March 11, 2007 Share Posted March 11, 2007 That's "Administrative Communications Officer".....Administrative staff now....just for clarification. This month does make 14 years..God, I'm feeling old !!! I suspect that I'll find out tomorrow what the deal is. I would like to be prepared in the event that I'm told "It's not a dealer caused issue....blah blah blah." Rich Do you still wear a uniform? If so, that may be beneficial. Either that, or give your number at work, so they're fully aware of your work with the police. Quote Link to comment Share on other sites More sharing options...
StPeteXX Posted March 11, 2007 Author Share Posted March 11, 2007 That's "Administrative Communications Officer".....Administrative staff now....just for clarification. This month does make 14 years..God, I'm feeling old !!! I suspect that I'll find out tomorrow what the deal is. I would like to be prepared in the event that I'm told "It's not a dealer caused issue....blah blah blah." Rich Do you still wear a uniform? If so, that may be beneficial. Either that, or give your number at work, so they're fully aware of your work with the police. I tend not to mention where I work, as I really don't want to be treated differently (unless I'm getting pulled over ). I like to get my on my own merit, not my profession. If that makes any sense?? Would a bent rotor vibrate / shake that bad while slow speed braking? The fastest I got up to after the tire change was maybe 50mph and I didn't notice anything when grabbing the breaks. As I said, I only noticed it when getting down to about 10-0mph. Could it be that the slower rotation of the rotor at low speed is making the vibration more pronouced? Could it be anything else as the service guy mentioned? Loose bearing or something like that? Something with the break calipers when the wheel was removed / put back on? Rich Quote Link to comment Share on other sites More sharing options...
bajjer9 Posted March 13, 2007 Share Posted March 13, 2007 I thought one of my front discs were going...until the front right bearing disentigrated...THEN I knew the real problem!! Same symptoms...only had vibrations when slow speed braking Quote Link to comment Share on other sites More sharing options...
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