ADV tank installation on F650GS / F800GS for extended range

Discussion in 'Parallel Universe' started by GB, Mar 2, 2012.

  1. jttele

    jttele Been here awhile

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    The front mount posts where the SW rack attaches needed a spacer added to be able to screw in and not bottom out, but the rear mount points have nothing to do with the SW rack and are the same as stock. That's where I'm finding the issue with the length of either the bolts or the mounting post itself. I'll try and send in some pictures when I get home from work today if I can get Picasa to work for me, sometimes it does, sometimes not???
    #21
  2. GB

    GB . Administrator

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    Here's what mine looks like, hopefully you can post a pic of yours:

    [​IMG]
    #22
  3. Olvi

    Olvi Ice Butt

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    Well, that is THE worst place I can imagine for extra fuel tank :eek1.
    #23
  4. DefyInertia

    DefyInertia Saratogian

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    That bike is going to handle like. Dog loaded up, no? I guess that is just a compromise. Nice lookin setup.
    #24
  5. jttele

    jttele Been here awhile

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    Tell that to all the guys who run 1 or 2 gal. Rotopax or Kolpin on the rear rack too then. At least with the adv tank, you've only got that weight up there for the first 1.6 gallons of fuel that you burn.
    #25
  6. GB

    GB . Administrator

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    The bike handles just fine.. I don't notice any difference between the Adv tank and when I had my Givi E53 case on there.. It corners just as it did before and left to right transitions with the tank full are seamless. And as mentioned above, within the first 100 miles, the fuel in the Advtank would has been exhausted, whereas those who mount Rotopax containers back there, carry that extra weight until the main tank is empty and they have to stop and pour the fuel from the Rotopax into the main tank.

    The other option is a tank that hangs off the side of the bike, like the X Tank on the G650X Challenge, but then the complaints will be that you can't fit any standard panniers. The other option is the Touratech tank: A lot of work to install it, you have to make holes in your stock tank, and it makes accessing the air filter and valve cover a chore, as the tank needs to come off.. and at $2000 it's not cheap, to say nothing of a top heavy bike once the Touratech tank is full. If you don't need a 400 mile range, the AdvTank is a simple, and relatively inexpensive solution.

    On this bike, I ride solo 100% of the time, so the passenger portion of the seat will hold a good sized dry bag and I have the option of adding my panniers. So to me, the AdvTank does not impede load capacity, does not alter my luggage capacity, does not change the handling and does not make a huge dent in my wallet. It does give me a range of at least 300 touring miles..

    I'll be able to report on the range as I start doing longer trips. Right now, I'm just commuting to work.
    #26
  7. DefyInertia

    DefyInertia Saratogian

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    Glad you like it. I was referring to the tank plus top case etc combined as weighing the bike down and killing performance. I prefer soft low slung bags, packing lite, and centralized/low fuel.

    Certain things don't make a noticeable difference until the pace really ramps up. I mean, if you don't notice ANY difference then you must be just cruisin.

    Thanks for the info, definitely a big plus that this fuel goes first.
    #27
  8. -W-

    -W- Flying Finn

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    Yep.. For sure no sideways drifting with this kind of setup. Maybe it works when you are just cruising in tarmac, but keeping throttle bodies open in gravel or offroad... .. . :lol3
    #28
  9. GB

    GB . Administrator

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    No drifting sideways for me.. :D It's no more weight than a topcase mounted there, and the weight of the fuel is gone after 100 miles. For commuting, this is working out well. IMO this is the best location that does not compromise luggage capacity for long distance riding and still gives a 500+ km range. If you want to have your cake and eat it too, this is it :lol3 A side mounted tank precludes mounting panniers. And Touratech is too expen$ive for me, and quite a labor intensive installation and removal. You can be sure the dealer will charge extra for labor to remove and reinstall the tank at valve checks.. It just depends on what you want to do with the bike. This tank fits my needs and I'm delighted that I did not have to bang my head against the wall when installing it. :lol2 When traveling, the case comes off and a dry bag or Motofizz will go on the seat.

    I was asked to show the mounting plate for the topcase:

    [​IMG]
    #29
  10. jttele

    jttele Been here awhile

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    Finally got around to getting some pix setup that should work here. First one shows the aluminum spacer I made to fill the gap at the bottom of the front mounting posts where the threaded part bottomed out in the hole before the post bottom came all the way down. I thought it was just that I've got the SW Motech rack and the mounts there were not as tall as the stock mounts, but it looks like GB's pix show his posts not threaded all the way down as well. Is that right? If that's how it's supposed to fit on the front posts, then I think they need some revision if you ask me.
    The second pic shows how I made the breather work. I had already removed the charcoal cannister, so I didn't need to hookup to the stock system anyway. I just used the stock breather valve which is open to flow into the tank easily and will vent out as well if about 5-6 psi is applied to it that way. Have not had a chance to try it yet, but it is setup the same as the stock layout, just with the ADV tank added inline with it.
    Third pic shows that the top plate sits off the top of the tank a bit, I guess to keep any weight you put there from compressing the tank. Overall I'm very pleased with it, but I'll report back after more trials.

    [​IMG]

    [​IMG]

    [​IMG]
    #30
  11. bobobob

    bobobob IN HOC SIGNO VINCES

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    I wonder if a Givi plate would fit on there to mount a E55 TECH?

    [​IMG]
    #31
  12. GB

    GB . Administrator

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    I wondered that too. You will soon have your answer! :lol3 I have a universal (flat) Givi plate coming. I know it's too big to fit, but I have an idea or two on how to support the back end of the case. I'm sure it won't be pretty, but it's all about function, not form. Stay tuned.
    #32
  13. OZZY-GS

    OZZY-GS Been here awhile

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    Well I got my package today down here in Oz and it all looks the goods.
    Firstly the front bolts where very hard to get in and as others have mentioned they bottom out early. I used some spacers as others have. When mounting the top plate I too had trouble getting the M8 bolts to reach the rear adaptors but with a bit of a push i managed to make it happen. The front bolts though bottom out by approx 2mm before the luggage plate is tight. Anybody else had this problem. :huh
    Looks like I will be buying slightly longer M8 bolts for the rear and slightly shorter ones for the front.
    I think its a great product but these little issues should not be happening.
    #33
  14. modeselector

    modeselector Common as muck

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    Considering purchasing~hopefully these minor issues get sorted out.

    Please keep up the reviews and photos guys!:ear
    #34
  15. GB

    GB . Administrator

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    Btw, I would highly recommend you use anti-seize compound on the threads of the bolts/spacers that mount into the bike's frame.

    When I removed the 4 bolts that held my Givi topcase rack on my 8GS, the bolts had signs of corrosion on them, mind you they weren't stainless bolts, but to be on the safe side, I coated the bolts for the adv tank with anti-seize paste.

    I'm going to say the rear bolts that screw thru the 2 rubber spacers need to be about 5 mm longer, and the front ones could benefit from spacers between the threads and the long spacer, otherwise the setup is perfect. I'm going to pass this onto the good people at advtank.
    #35
  16. FORE!

    FORE! pretender

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    Hey guys! Thanks so much for your comments here about the tank! Even though we have put this tank thru some serious testing, there is always a possibility that something will pop up that we did not anticipate. This proving process will help us refine the product to its perfect intended use. Be sure that any improvements we make will be made available free of charge to those who have already purchased the tank. Know that this tank is not for everyone, but we see some exceptional uses for it. I come from a racing background and having a tank in this location, that drains first (rather than holding the fuel until you stop, unbolt something, pour it into your stock tank, spill some, bolt everything back together, etc) provides the optimal scenario for expanding our range/route options. I've seen many other companies put together a rack/plate system in the back and ask more than 50% of what the price of this tank AND plate retails for.

    We have already sourced longer bolts for the rear mounts, and will be sending a set out to those who have already purchased the tank. These bolts are A-2 grade stainless steel, so rust & corrosion on them should not be an issue. Additionally, after reviewing this thread and others, se have seen some additional mounting uses. We will be including a set of spacers for the front mounts that allow you to use aftermarket grab handles. Again, a set of these spacers will be sent to those who already have the tank.

    If you have any other questions or comments about the tank, feel free to post them here or PM me and I will answer promptly (assuming I'm not out riding :D).

    Scott
    AdvTank
    #36
  17. roundtripping

    roundtripping Adventourist

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    Customer service in a nutshell. :deal :thumb
    #37
  18. bobobob

    bobobob IN HOC SIGNO VINCES

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    +1

    BMW could learn a lesson here about how it should be done.

    Btw, any chance of Givi plate adapter? Thanks.
    #38
  19. GB

    GB . Administrator

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    Scott is a stand up guy. I contacted him and he was on it right away. This is a totally minor issue, as you can see, the tank is on the bike and functioning correctly.


    Still waiting for the Givi plate to arrive.. I bought a used one in the flea market and it's coming in the mail... hopefully before summer :lol2
    #39
  20. jttele

    jttele Been here awhile

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    I agree with GB, I love the way the tank works, I've gone thru one tankful so far and it works just as expected. The fitting issues I ran into were minor, and it's great that they are working on addressing those issues so quickly. Not that I think they should mark the price up, but I'd have gladly paid about $100 more for what it is. Couldn't be happier!
    #40