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Swingarm and Shock question.

Discussion in 'Mechanics Garage' started by cad600, Mar 9, 2007.

  1. cad600

    cad600 New Member

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    So as I mentioned in my intro, I'm going to be doing a VFR single sided mod onto my FZR. I've got most of my parts now, and I'm trying to stratigize how I'm going to do this. But I've got two questions first:
    1) Did I mess something up, or is the shock not aligned with the wheel? I'm assuming that the wheel should be centered in the frame. Is this correct?
    [​IMG]
    It seams like the shock will be offset from the wheel and frame.

    2) What are my options for the swingarm itself? Paint, Polish, PowderCoat?

    Thanks.
     


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  2. RVFR

    RVFR Member

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    another one of the other biggies to check is chain alinement, not sure what other manufactures make out of the offset thats built into the engine and frame. Hmm, doesn't look right to me either, I'll have to go check mine now. I'm pretty sure I have more clearance between the tire and swing arm, what year is the swing arm and size is the tire?
     


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  3. cad600

    cad600 New Member

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    The swinger is from '90. The wheel is the 8 spoke with a 170 on it.[​IMG]
    I've taken the hub apart to replace the brake disk which might account for the tighness of the tire/swingarm since I'm waiting on a new torque wrench to tighten it properly. But looking at it, there is about 1-1/2" difference in the center of the shock mount and the tire. Torquing the hub shouldn't move things that much.
     


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  4. mello dude

    mello dude Administrator

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    Hi - can u reduce your pic size? I have a hard time seeing what going on.

    - Generaly the primary consern would be front to rear wheel alinement and then the sprocket alinement after that. It may take a little creativity to get the wheel in the correct position. Also you may have to shim or trim/machine the bosses that the spocket bolt to. After that juicy design problem, then attack the shock mounting problem.

    - Just notes from a pro-geek. Good luck!

    MD
     


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  5. tbones86

    tbones86 New Member

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    This is what I'm seeing by looking the picture; the center line of the swing arm is actually to the right of the shock as it appears in the pic'. Meaning the shock assm actually sits off the the left, again as pictured. I'm basing this off of the center line of the front pivot & not the tire/shock alignment. In therory I guess it would make sense as you have no load bearing fixture on one side so you would want the support to be offset towards the load side of the swing arm:noidea: :noidea:
     


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  6. cad600

    cad600 New Member

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    Can anyone post a picture of the rear end of their bike. Spicificly try to show the rear wheel, shock, and frame in the same picture. Maybe this will clear up some confussion.

    And I agree T-Bone. I think the alignment of the wheels (front and rear) to the frame is more important. The sprocket is another issue altogether. The max width on a stock FZR is a 160 tire size. This means that I'm going to need to create front sprocket with about 10mm of offset. Should be interesting.
     


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  7. RVFR

    RVFR Member

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    Probably not much help, here's one I had taken during my shock swap

    [​IMG]
     


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  8. tbones86

    tbones86 New Member

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    Ok, looking @ RVFR's pic, using the fuel tank to roughly establish a center line the shock is offset to the swing arm side by about 1/2 the width of the shock mounting boss, the brake rotor is actually the center line. So as MD stated start by aligning front & rear tire centerlines then figure out what needs to be done to align the sprokets & you should be good to go except for the little detail of altering your upper shock mounting point as the FZR shock is centered. I hope your snowed in, I'd hate to doing this kind of mod when it was nice enough to ride.:biggrin:
     


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  9. mello dude

    mello dude Administrator

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    I think TBones is right - from my foggy memory I think the rotor is the rough centerline of the wheel - youll have to figure which way to offset the swing arm to line the wheel up (if any), come up with a bolt up sceem that you trust, then figure out offsets of the sprockets and move on from there.:eek:

    - I'm done with my mods for a least a season, I did that last year - gotta get caught up on riding, Yea spring!

    MD
     


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  10. cad600

    cad600 New Member

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    Thanks for the picture RVFR. That was exactly what I was looking for. And I would have to agree with everyone, the disc brake looks to be centered on the frame.

    Unfortunitly, I'm not snowed in. The weather in Georgia has actually been nice, but the bike doesn't run correctly right now anyway. Basicaly I'm too busy and scared to clean and re-jet the carb (never had luck with carbs). Plus I'm still recovering from a nasty low side I had back in September. But I've got more titainium on my collar bone than on the bike. Cost me more than the bike did too.
    [​IMG]
     


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  11. RVFR

    RVFR Member

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    Ooo boy, can a relate to this.

    Time for a new thread..
     


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