My 848R Build

Discussion in '848 / 1098 / 1198' started by Sinister, Dec 22, 2012.

  1. Arthur maybe you know the answer to this...I noticed that most ohlins forks have the blue decal on them but mine is a white one, is it a new decal or does it mean something different?
     
  2. I am like you I don't plan on racing the bike, it's more for street and maybe the odd track time here & there!

    A friend I mine has the TTX with the stock rocker and he has no problems at all, the rocker KyleUSA sells is $600.00 plus taxes plus shipping
     
    #42 Sinister, Dec 23, 2012
    Last edited: Dec 23, 2012

  3. he hee........

    OK so a "flatter" link refers to the fact that its rising rate stays linear........(although no suspension can actually achieve a completely flat rate) So you hit a bump, the wheel rises up the rocker rocks and the suspension shock absorber spring compresses. The rocker ratio is how much the spring compresses compared to the wheel movement. As a guide a corse rocker will look to get this around 2.2-1 2.2 centimetres of wheel movement to 1 centimetre of spring compression. If this stays the same for the whole travel of the wheel then the rocker is linear or flat.

    if the spring compresses more the further the wheel moves (like hitting a big bump in the road) then its said to be progressive.

    It therefor follows that for a smooth track you can get away with a linear ratio (the bonus being it gives a consistent feed back to the rider) but for a bumpy pothole ridden road you may need a more progressive suspension.......
     
  4. Just a later decal mate, my rear is not the OEM Ohlins (write the wrong part number) it's a DU788 TTX36 with hydro pre load.

    Whats your advice with the eye Andy, rocker, tie rod, etc.
     
    #44 arthurbikemad, Dec 23, 2012
    Last edited: Dec 23, 2012
  5. ...so similar to progressive fork springs then; as std irons out the first part of travel but after that works as suspension rather than bump-buffers. So only really useful for the track? This what the Panigale has as standard, position linkage or is that also something different, bit like the trail adjustment on the old bikes?


    ps apologies for the hijack :)
     
  6. No worries...it's all good and very useful information!
     
  7. Progressively gets stiffer over compression/travel or stays flat rate over travel Bradders.. You can chart the effect or rather there are graphs showing compression over a given amount of travel.

    Rocker design effects travel, load and leverage.
     

  8. he heeeee

    ok the rocker ratio is like closing a door, push on the outside of the door and you have to move further to close the door as much as if you pushed it nearer the hinges where abouts the shock tie road and pivot are in relation to each other denotes the ratio....as you say on the panigale that movement of the pivot changes the characteristics of the ratio..

    ok on the old bikes that 23.5 -24.5 is rake!...........not trail, and in fact going to the 'race' (as is often referred to) 23.5 does have a detrimental effect on trail by about 6mm..............you need to speak to jerry for an update about what trail is......:biggrin:
     
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  9. Ar yes, rake = angles, trail = distance, remember the terminology now, and that if you change the headstock you need to reset ride height. So not worth doing if used mainly on the road then.
     
  10. All the 848s me and Paul checked were slightly different even with fixed tie rods as you would expect thanks to the AC hub.
     
  11. So in retrospect every bike is different in their rake?
     
  12. i think they are referring to rear ride height..........although you are, i suspect, inadvertently correct.
     
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  13. Can I go ride my bike now:biggrin:

    Lovely bike mate, enjoy:upyeah:
     
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  14. What with all that salt?! Lol
     
  15. Oh OK then :(

    will wait until after Christmas as I need to put a few pounds on to get the suspension right:biggrin:
     
    #55 Dementor, Dec 23, 2012
    Last edited: Dec 23, 2012
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  16. Roy, WTF are you going to get for christmas..........though i bet its gold..:cool:
     
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  17. Dont worry, we've got something which will add a few pounds on him ;)
     
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  18. choc.jpg
    :biggrin:

    choc.jpg
     
  19. It's a very nice bike, has some way to go to catch up with the Red Bull 916 on ducati.ms though.

    One more thing (Columbo style!) shouldn't this be in the Superbike section of the forum?
     
  20. Yes I have seen that Red Bull Ducati and there has been a lot of time & money put into it for sure, everyone has there own visions to personalize their projects!

    And if you are a moderator...can you move this to the "SuperBike" section, my bad for posting it up here!
     
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