Results 1 to 9 of 9

Thread: Rear wheel specs

  1. #1
    dennisemanuel
    Guest

    Rear wheel specs

    Hi guys and gals I'm Dennis the Burmese guy just joined just got my dream bike 2012 gtl kinda disappointed about the klunky shifting mostly 1st and 2nd found that preloading the shifter helps . My latest findings is my rear wheel has 3 bumps .045 almost 120 deg apart towards the tire .And it's only on the drive side the right side of the bike is ok .005 out avg spoke to my dealer and they said it was within specs 1.5 mm for radial runout . Any thoughts ? Dennis

  2. #2
    dennisemanuel
    Guest

    Cool rear wel specs EDIT

    Quote Originally Posted by dennisemanuel View Post
    Hi guys and gals I'm Dennis the Burmese guy just joined just got my dream bike 2012 gtl kinda disappointed about the klunky shifting mostly 1st and 2nd found that preloading the shifter helps . My latest findings is my rear wheel has 3 bumps .045 almost 120 deg apart towards the tire .And it's only on the drive side the right side of the bike is ok .005 out avg spoke to my dealer and they said it was within specs 1.5 mm for radial runout . Any thoughts ? Dennis
    Hi Guys, forgot to mention I had a flat piece of glass went sliced my tire about 1/2 close to the middle had 14lbs of air when I was out of a tunnel and able to pull to the shoulder. You guys think its possible that tire machine could have caused the rim to be egg shape? I can't figure how one side of the wheel is straight and the other side which just happens to be the side they mounted down on the tire machine is bent out? I got a minus reading on my indicator when mounted on the inside of the rim meaning its bent towards the outside.Come on some of you guys must have a mag base indicator takes about 10 minutes to check runout on both sides. I suspect you guys will find your rims under .015 inches or half a millimeter. THANKS DENNIS

  3. #3
    IBA #44567 Ken F's Avatar
    Join Date
    Sep 2009
    Location
    SW, MO
    Posts
    1,206
    "At this point what difference does it make?" (I think Abe Lincoln said that)

    On a serious note Dennis, welcome to the forum! At this point you know that you have a bent rim, so the task at hand would be to straighten it, correct?
    I would think that a pneumatic tire machine that "grabs" the rim would possibly bend it, yes.
    I've never straightened one, but have sent them off to have them straightened, and they come back with reportedly virtually no run out.
    Obviously, having a bent rim will lessen tire mileage, and effect handling & rideability.

    Ken
    IBA #44567
    "Two things are infinite: the universe and human stupidity; and I'm not sure about the the universe."
    -Albert Eienstein

  4. #4
    Loading the Bike
    Join Date
    Jan 2011
    Posts
    4

    Cool rear wheel specs

    Quote Originally Posted by Ken F View Post
    "At this point what difference does it make?" (I think Abe Lincoln said that)

    On a serious note Dennis, welcome to the forum! At this point you know that you have a bent rim, so the task at hand would be to straighten it, correct?
    I would think that a pneumatic tire machine that "grabs" the rim would possibly bend it, yes.
    I've never straightened one, but have sent them off to have them straightened, and they come back with reportedly virtually no run out.
    Obviously, having a bent rim will lessen tire mileage, and effect handling & rideability.

    Ken
    Hi Ken ,thanks for the welcome .Yes i'm gonna get it straighten waiting for the rear tire to wear out.Dealer feels bad they tried with no luck .They offered to give me a new wheel and tire at their cost. Will just have a spare in the garage for faster tire swaps.Thanks happy trails Dennis

  5. #5
    Registered User
    Join Date
    Sep 2008
    Location
    Wilmington, NC
    Posts
    2,119
    If I understand your post, you've got 3 small bumps where a tire machine might grab the wheel. Yes monkeys with pneumatics or even less aggressive tools can bend aluminum wheels or worse (I once had an idiot rip a metal bead insert on a cage tire because he was too lazy to lube stuff. That's not easy given the tensile strength of that wire)

    Those little bumps, though out of spec, are no big deal PROVIDED they are what I think they are (small bends at contact points) and local. If that's all they are it won't do anything to sealing or balance that you're likely to notice. If not sure, spin up the mounted tire and see how true the tread runs. If it runs ok and holds air, it is ok...

    There is a reason the manual NoMar changer and similar are the preferred tools of many. I just "had to buy one" from a friend who did my tires but is moving out of town..

  6. #6
    Small road corner junkie pffog's Avatar
    Join Date
    Apr 2006
    Location
    WNY, Further fron NYC, than 6 entire states!
    Posts
    2,094
    I have to ask a question, can you FEEL the bumps when you ride??? If you can you must be a decedent of the princess from The "princess and the Pea" story.

    .045 is less then the thickness of a dime, and I would say that every tire I have ever mounted, and it has been in the thousands, had far more run out once mounted than that, and were smooth as silk at speeds far in excess of the speed limit. And I would bet that any spoke rim once installed and ridden has far more run out.

    My advice, put away the machinists tools and ride it!
    2010 F800GS Full Ohlins package, '04 R1100S Replika
    '01 F650GS Wife's bike
    Maritime Alps and Vosges 2012
    Tuscany and Central Italy 2010

  7. #7
    Loading the Bike
    Join Date
    Jan 2011
    Posts
    4

    rear wheel specs

    Quote Originally Posted by racer7 View Post
    If I understand your post, you've got 3 small bumps where a tire machine might grab the wheel. Yes monkeys with pneumatics or even less aggressive tools can bend aluminum wheels or worse (I once had an idiot rip a metal bead insert on a cage tire because he was too lazy to lube stuff. That's not easy given the tensile strength of that wire)

    Those little bumps, though out of spec, are no big deal PROVIDED they are what I think they are (small bends at contact points) and local. If that's all they are it won't do anything to sealing or balance that you're likely to notice. If not sure, spin up the mounted tire and see how true the tread runs. If it runs ok and holds air, it is ok...

    There is a reason the manual NoMar changer and similar are the preferred tools of many. I just "had to buy one" from a friend who did my tires but is moving out of town..
    Hi racer x , yes it runs true just kinda bugs me paying over 27k for my dream bike and i get a bent rim.

  8. #8
    Loading the Bike
    Join Date
    Jan 2011
    Posts
    4

    rear wheel specs

    Quote Originally Posted by pffog View Post
    I have to ask a question, can you FEEL the bumps when you ride??? If you can you must be a decedent of the princess from The "princess and the Pea" story.

    .045 is less then the thickness of a dime, and I would say that every tire I have ever mounted, and it has been in the thousands, had far more run out once mounted than that, and were smooth as silk at speeds far in excess of the speed limit. And I would bet that any spoke rim once installed and ridden has far more run out.

    My advice, put away the machinists tools and ride it!
    Hello ok no can't feel the bumps just bugs me to spend over 27k for my dream bike and i get a not so perfect vehicle must of happened in Germany the tire machine used here held the rim from the o.d.was just wondering if anyone else ran across this same scenario thanks dennis

  9. #9
    Ponch ponch1's Avatar
    Join Date
    Dec 2010
    Location
    Fountain Hills AZ
    Posts
    887
    Quote Originally Posted by Ken F View Post
    "At this point what difference does it make?" (I think Abe Lincoln said that)

    Ken
    Are you sure? I thought it was his wife?
    My Motorrad
    BMWMOA 162849 | BMWRA 41335 | VROC 8109-R | VBA 19

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •