1. Some members were not receiving emails sent from XJbikes.com. For example: "Forgot your password?" function to reset your password would not send email to some members. I believe this has been resolved now. Please use "Contact Us" form (see page footer link) if you still have email issues. SnoSheriff

    Hello Guest. You have limited privileges and you can't "SEARCH" the forums. Please "Log In" or "Sign Up" for additional functionality. Click HERE to proceed.

front tire size check please -- updated

Discussion in 'XJ Technical Chat' started by clhannah, Sep 24, 2008.

  1. clhannah

    clhannah Member

    Messages:
    101
    Likes Received:
    0
    Trophy Points:
    16
    Location:
    Portland, OR
    Hey y'all. Everyone around here seems to drive much slower when I'm on my bike, so I started to think my speedo is about 10-15% slow. Pulled the cable, cleaned inspected and oiled it. I don't think it's the cable though because the needle is dead steady.

    Before I pulled the unit apart I thought I would check what's easy first.
    The manual says the bike should have:
    3.25 H19-4PR
    Installed I have:
    3.25-19 54V Metzler lazer somethings (forgot to write it down)
    The local dealer says the 3.25 x 19 is all that's important -- is this truth?

    seems to me the shape / profile could make a significant difference.

    thots?
     
    clhannah, Sep 24, 2008
    #1
  2. Polock

    Polock Well-Known Member

    Messages:
    9,751
    Likes Received:
    2,097
    Trophy Points:
    113
    Location:
    Beaver Falls, PA
    Polock, Sep 24, 2008
    #2
  3. clhannah

    clhannah Member

    Messages:
    101
    Likes Received:
    0
    Trophy Points:
    16
    Location:
    Portland, OR
    Re: front tire size check please

    Thanks Polock! So the aspect ratio is missing in both designations. Is it reasonable that one could have a 10%+ larger final diameter than the other? Looks like I might have to buy one of those little computers.
     
    clhannah, Sep 24, 2008
    #3
  4. clhannah

    clhannah Member

    Messages:
    101
    Likes Received:
    0
    Trophy Points:
    16
    Location:
    Portland, OR
    OK, so I got the planet bike Protege. My speedometer was 15% under at 25 MPH and a whopping 20% under at 50 -- I was doing 59.7! Of course the little magnet went flying off at this point 'cause I did not wait until the epoxy was fully set. I though: "weird -- how is that pebble going exactly my speed?" as it rose up in front of me for a split second.

    On the upside I am not at timid as I though -- taking the 40 MPH curves at nearly 50 doesn't make me feel so bad! Thank the gods that I did not get a ticket passing all those "grampas" . . .
     
    clhannah, Oct 1, 2008
    #4

Share This Page