HP2 Ohlins cartridge from Fast Bike Industries

Discussion in 'GS Boxers' started by configurationspace, Apr 20, 2012.

  1. configurationspace

    configurationspace delooper

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    Thanks for the comments. Regarding your last paragraph...

    Is it just me or didn't the air shock have more rebound damping when it was new?

    [​IMG]

    Does anyone have a good diagram of the valving? Or is there really none? Is the air shock just one giant spring? It looks like there could be a friction point in there.... is there?
    #41
  2. GSMarc

    GSMarc Long timer

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  3. configurationspace

    configurationspace delooper

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    #43
  4. 225

    225 Been here awhile

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    Not sure how I stumbled onto this thread. But FBI is the best I have ever delt with. I know Dave personally, and he really takes pride in his work. I have had 3 sets of suspension done by him.
    #44
  5. rudiemoto

    rudiemoto Adventurer

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    There r not the same units ,but that said I am fitting bi turbo units in the 45 mm forks which come out at 500 but I can't give u feed back yet ,also I have an mst rally kit to fit :D
    Each oh lions kit is custom by Kais suspension in uk
    Rally development in the uk do a triple clamp conversion to 48 mm Wp units
    Molly has a well sorted hp2 and rides very very hard ....unlike me :lol3
    #45
  6. rudiemoto

    rudiemoto Adventurer

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    #46
  7. gkaan

    gkaan Bikes on the Brain

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    i have a pending sale for my G650X-challenge which means I will have some funds to fix/improve my HP2E. firstly it needs a new rear drive :cry
    secondly, the fork tube is shot which is OK as i plan on calling FBI to discuss alternatives as the front end is still too soft for me even after installing heavier springs and fork oil. I have also decided that ill be doing much more on-road riding moving forward and am installing the supermoto wheels/tires and leaving them on for a season or two. This means i need to improve the front brake as it is great for off road but a litlle underwhelming for aggressive on road riding. It would be great to know what experiences folks have had with the front brake alternatives out there that would work for street riding? I will also be looking at rear shock if i don't run out of money first. I cant wait to get started!
    :D
    #47
  8. Some Dude

    Some Dude what attitude problem???

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    How good of front brakes do you want? I have a radial 4 piston caliper on my HP2 E with KTM 48mm forks for my "street" set-up and I have a KTM 950SM front end (complete) that can easily be adapted to the HP2 E for a truly nice handling MegaMoto set-up complete with radial calipers and master cylinder from an S1RR.

    The Stock SM wheel set is going to help with braking as it has a 320mm front rotor instead of the 265, but you're still squeezing with the very small front caliper so it's only a marginal improvement. QTM makes a radial caliper adapter for the KTM forks which can be adapted to the HP2 E. This will give you much better valving for comp/rebound which is the major weakness of the stock Zoke forks and there can be custom springs made for either fork, but even with the right springs the valving has to match.
    #48
  9. bikecat

    bikecat Long timer

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    Why not simply transfer MM front end to HP2E and upgrading the forks with Racetech and springs?
    #49
  10. Some Dude

    Some Dude what attitude problem???

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    new MM forks would be way more $$$ then used KTM 950 SM of SMR forks and new lower triple clamp as there are no parted out MM's out there. Also the MM Zokes are not as nice as the WP 950 SM or SMR forks. Both options are going to lower the bike quite a bit and rear shock should be matched accordingly.
    #50
  11. gkaan

    gkaan Bikes on the Brain

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    sound slike you have a great set up somedude. any pix of your front end? i have a 950sm which im selling. this is part of the reason i'm looking to convert my hp2e as id like to approach the handling and braking of the KTM although i know that would be difficult. i dont know what the costs are for the 950SM fork and radial caliper conversion but that sounds ideal. is there no caliper rotor conversion kits? i have seen rotors but no calipers sold as after market for HP2E but maybe im not looking hard enough.

    #51
  12. GSMarc

    GSMarc Long timer

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  13. gkaan

    gkaan Bikes on the Brain

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    Just ordered my cartridge kit from David at FBI. Can't wait!
    :freaky
    #53
  14. configurationspace

    configurationspace delooper

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    I'm draining the oil from my forks -- first oil change since the FBI cartridge inserts. Holy hell it takes forever for the oil to drain! Every time I think I've drained the oil, I turn the forks upside down for a while, pump them a few times, turn them back upside-down, and another 5 tablespoons come out.

    Is there a quick way to get the oil out? Maybe I'm being too fussy, but wow. It's also only around 12c here right now, that might have something to do with it.
    #54
    leolou likes this.