Another Dakar build

Discussion in 'Some Assembly Required' started by Gedrog, Jun 11, 2018.

  1. Gedrog

    Gedrog 1000 mile stare a 1000 stories to tell

    Joined:
    Oct 20, 2013
    Oddometer:
    1,913
    Location:
    Lost in the Sahara
    Its been a bit mission creep being indecisive over what the end result should look like
    Original Idea get a bike that has low fuel consumption
    Has a proven track record of being a rock solid platform
    Something I can take around the world love looking at every day
    I like to amble about so I would like extended fuel range
    Not that the Dakar is not a stunning bike but it looks a little dated

    So being collecting bits tools etc the thread may seem a bit random but this is to jot ideas down for the time being and bikes
    s-l1600.jpg
    I have always wanted a replica Dakar Bike or an actual Dakar bike
    LFbf5KK.jpg
    For a while I did romanticise about the Oryx although I am sure it must be an awesome light bike
    there is just something I quite couldn't get
    FzSbVT-3 (1).jpg
    The serious concept
    F650RRprototype.jpg
    But at some point we have face it some of these bikes have limitless budgets in their creation
    Most of these live in peoples dusty attics as kits once bought to build the dream bike and then the dream just became the dream. Like myself I had a fare bit of serious kit then got rid of all of it then the dream resurfaces most of what I need is now pretty much unobtanium or used
    Anyway ultimnately it will probably end up looking like this but with a modern take
    [​IMG]
    #1
  2. Gedrog

    Gedrog 1000 mile stare a 1000 stories to tell

    Joined:
    Oct 20, 2013
    Oddometer:
    1,913
    Location:
    Lost in the Sahara
    First things first attack the Side stand the default lean angle on a BMW F650Dakar is just so weird
    [​IMG]
    First attempt a bit too upright hope the wind doesn't blow
    [​IMG]

    in loose terms
    [​IMG]
    [​IMG]
    Not perfect at all so been thinking below is the Overland solutions foot-peg hangers for the Dakar
    aLEEw3d.jpg
    But this pushes the footpegs forward and too high
    So thinking hmmm
    another idea.jpg
    #2
  3. Gedrog

    Gedrog 1000 mile stare a 1000 stories to tell

    Joined:
    Oct 20, 2013
    Oddometer:
    1,913
    Location:
    Lost in the Sahara
    Another idea for the side stand mounting
    Plans.jpg
    #3
  4. TobyG

    TobyG be happy :)

    Joined:
    Dec 27, 2011
    Oddometer:
    1,237
    Location:
    Nemčija

    ^FFS mate, wrong side of the bike, for a start :D

    :amazon
    #4
  5. Gedrog

    Gedrog 1000 mile stare a 1000 stories to tell

    Joined:
    Oct 20, 2013
    Oddometer:
    1,913
    Location:
    Lost in the Sahara
    :roflI knew I did something wrong but everytime I tried to start drawing the damn thing would jump to a different plane
    #5
  6. TobyG

    TobyG be happy :)

    Joined:
    Dec 27, 2011
    Oddometer:
    1,237
    Location:
    Nemčija
    Yeah, I am not even going to get started about you using MS Paint to draw something on a screenshot you took in a CAD program. :thwak
    #6
  7. Gedrog

    Gedrog 1000 mile stare a 1000 stories to tell

    Joined:
    Oct 20, 2013
    Oddometer:
    1,913
    Location:
    Lost in the Sahara
    :imaposer
    #7
  8. Gedrog

    Gedrog 1000 mile stare a 1000 stories to tell

    Joined:
    Oct 20, 2013
    Oddometer:
    1,913
    Location:
    Lost in the Sahara
    Forgive the ramblings of an incoherent mind I have regular brain farts that come up with incoherent WTF moments so if you see me posting random pictures and babble on feel free to take the stick out and punch me so that I can return to Normal ramblings sometimes you have to bear with me as the idea idea is in embryonic stage. Advice is apreciated

    There is lots of ideas floating about for my suspension I came up with the idea whilst reading the @Ghazzah 48mm Yammie conversion over here essentially the Dakar and Sertao F650/G650GS is the same wolf with a different sheepskin to use the the WP cone Valve forks for a 2017 YZ450F I had them lowered by 30mm when I bought them anyone who has bought these know they are not for the faint of heart wallet. But this is where all similaririties to Ghazzah's built ends

    This is how a MXMA 4860 48mm forks were adjusted to take a CCM 644 axle. One leg shows a clear split in the spacer to facilitate clamping the other shows nothing hmmm so the cogwheels were turning about using the same configuration for the WP forks.

    Hence any bright minds out there that has done this before and can tell me what ALU grade I should consider at present I have got some 7075 round stock

    s2-20150924_111015 clamp LHS 17mm sleeve.jpg s20150924_111109 clamp RHS 22-30mm2.jpg
    Or I need to find a clever guy that can machine 4140 steel give him the standard 2017 YZ450 axle and say make the 22mm section 17mm
    The spacer on the right fork leg will need a dome cut on top of it as teh WP conevalave forks and I assume the 2017 YZ450 Yammie forks will also have the reduction in the fork
    [​IMG]

    Another option take these ridiculously expensive forks and give it to the same clever guy and ask him to drill the 22mm hole right through
    [​IMG]
    and ask a clever man who knows how tooo do it
    Make a more or less copy of the @Aquatic axle but instead of having a 20-17 mm reduction to make a in 22-17 mm reduction
    [​IMG]
    Initial Mock-up with a 300mm disk brake on a 2017 YZ450F
    that's when you realise it all falls apart this 300 or 298mm rotor is made for a WR450 the caliper pistons on that is

    [​IMG]
    Box'a'bits did the 48mm 2005 YZ250 conversion on a R100GS with the 320 rotor then I should be good enough for the Dakar but 2003 -2007 YZ uses 11mm master cylinder with 27mm caliper pistons

    The stock BMW 13mm master cyclinder mated with the Yamaha 27 mm pistons in the Caliper and was reported to be working well
    So that explains why 2003-2007 Yamaha Caliper was a better match just some useful or useless info to add should anyone read this and decide to use the OEM calipers of the Yamaha

    Just FYI the BMW uses a 32 and 30mm piston

    Here are the Yamaha brake calipers that uses the 27mm pistons
    1 version of the 27mm piston caliper 1C32580T0000
    Yamaha 2016 WR250F Yamaha 2015 WR450F
    Yamaha 2015 WR250F Yamaha 2014 WR250F
    Yamaha 2014 WR450F Yamaha 2013 WR250F
    Yamaha 2013 WR450F Yamaha 2012 WR250F
    Yamaha 2012 WR450F Yamaha 2011 WR250F
    Yamaha 2011 WR450F Yamaha 2010 WR450F
    Yamaha 2010 WR250F Yamaha 2009 WR250F
    Yamaha 2009 WR450F Yamaha 2008 WR250F
    Yamaha 2008 WR450F Yamaha 2007 WR250F
    Yamaha 2007 WR450F Yamaha 2007 YZ125
    Yamaha 2007 YZ250 Yamaha 2007 YZ450F
    Yamaha 2006 WR250F Yamaha 2006 WR450F
    Yamaha 2006 YZ125 Yamaha 2006 YZ250
    Yamaha 2006 YZ250F Yamaha 2006 YZ450F
    Yamaha 2005 WR250F Yamaha 2005 WR450F
    Yamaha 2005 YZ125 Yamaha 2005 YZ250
    Yamaha 2005 YZ250F Yamaha 2005 YZ450F

    Earlier version of 27mm piston caliper 5UN2580T0000
    Yamaha 2004 WR250F Yamaha 2004 WR450F
    Yamaha 2004 YZ250 Yamaha 2004 YZ125
    Yamaha 2004 YZ250F Yamaha 2004 YZ450F
    Yamaha 2003 WR250F Yamaha 2003 WR450F
    Yamaha 2003 YZ125 Yamaha 2003 YZ250
    Yamaha 2003 YZ250F Yamaha 2003 YZ450F


    The 2016 and 2017 use 22.5mm pistons
    Yamaha 2017 YZ450FX Yamaha 2017 YZ450F
    Yamaha 2017 YZ250FX Yamaha 2017 YZ250F
    Yamaha 2017 YZ250 Yamaha 2017 YZ125
    Yamaha 2016 YZ450FX Yamaha 2016 YZ250F
    Yamaha 2016 YZ250F 60TH ANNIVERSARY Yamaha 2016 YZ450F
    Yamaha 2016 YZ450F 60TH ANNIVERSARY
    [​IMG]
    [​IMG]
    So after thinking long and bloody hard which is dangerous even for me I did consider for a brief moment to go absolutely bonkers
    https://toxicmotoracing.com/shop/ca...09_2017/1823-qtm_caliper_bracket-radial_108mm
    Hmmmmmm shiny
    [​IMG]
    #8
    JagLite likes this.