5th Gen Jack Up Kit to raise bike at the rear suspension

Discussion in '5th Generation 1998-2001' started by RossR, Nov 7, 2018.

  1. RossR

    RossR New Member

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    I noticed that Lust Racing and Hyperpro sell a jack up kit to raise the bike at the rear suspension.
    Does anyone have experience with this?
    Does it really improve the handling of the bike?
    The options range from 20mm rise in increments of 5mm to 35mm.
    I did a search for "jack up kit" on the forums, but nothing came up.
    I hope that it's OK to post links so that readers know what I am talking about.

    Any feedback and advice would be appreciated from someone who has actual experience with raising the bike .

    I am 6' 1" so getting on and off a higher bike is not an issue, but I weigh only about 170lbs, so I was wondering if raising the bike would increase the weight on the front wheel, and cause the back to have less traction.


    https://www.ebay.com/itm/Honda-VFR8...h=item3628f2cbbf:g:QLgAAOSw-xVaSUWW:rk:1:pf:0

    https://www.moorespeedracing.co.uk/honda-jack-up-kits/vfr800f-98-01-hyperpro-jack-up-kit.html
     
  2. Terry Smith

    Terry Smith Member

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  3. NorcalBoy

    NorcalBoy Member

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    Thurn Motorsports sells the link plates to change it. Did it to a 6g after a GMD Computrack session resulted in them providing me with 3 different ways to get the chassis geometry in line with their "sweet numbers". I ended up going with the Thurn link plates, a length adjustable Ohlins 46HRCLS and raising the fork tubes to 12mm above the top triple. Great bang for the buck mod.
     
  4. RossR

    RossR New Member

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    Hi Terry,

    Oh, Oh! I now have to choices, and that makes things more complicated.

    Thanks for the link to the shims.
    The thing is that I have no clue which height to go for. Any suggestions on how to choose, other that adding one shim at a time and then riding to see how it feels?

    Of course, it's true that there is always the hacksaw route, but I found them at another vendor for a much lower price so I am not sure that it's worthwhile to DIY.
    I found the same thing more reasonably priced at a German vendor (about 30 Euros + postage), and they offer options from 20mm rise in increments of 5mm to 35mm.

    Cheers, Ross
     
  5. RossR

    RossR New Member

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    Hi, NorcalBoy,

    Thanks for the info on Thurn. They sure have lots of stuff for VFRs.

    Regarding dropping the front forks. Would that not decrease your ground clearance at the front? I have seen others posting that they did exactly what you did and they all say that their corner steering was vastly improved so I don't doubt the concept, but the fairing on this bike is already quite low to the ground, and I wondered if that was something to be concerned about when riding on the street as it's not a controlled environment like a racetrack. I do not have a track close to me so most of my riding will be on the street.

    Thurn has two kits on their website for the '99, 19mm & 25mm. Any advice on why one would chose one over the other?

    This is all new to me, hence the questions. I think that I need to get the Race Tech suspension bible and study it to get some understanding of setup and geometry.

    Ross
     
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