kubiaks tw650

Discussion in 'Thumpers' started by kubiak, Jul 12, 2012.

  1. Stretch67

    Stretch67 Mad Scientist

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    That's pretty sweet.

    Since we're on the subject... I'm saving up for a Christini AWD 450. Most of my riding is wooded single-track with ruts, roots, and loose dirt. With AWD, I would like to swap the front 21-inch rim for an 18-incher and go wide on the front tire. Off-road... are there any severe adverse effects to running a 120 or 130 - 18 tire on the front, compared to the stock 90 - 21?
    #21
  2. SportsGuy

    SportsGuy icanhazdirt?

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    Not to mention how the drum reacts to water and trail junk getting inside...
    #22
  3. kubiak

    kubiak Long timer

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    yea stock yz426 forks and triples. the 4.60x18 actually touched the fork gaurd so i had to trim a few mm off the edge of one side knobby. i think i will run the 4.10x18 next but the 4.60 sure works great on oand off road for me.i measured 4.75 inches between the fork gaurds so i thought the tire would fit. little shave and its in there now.
    #23
  4. kubiak

    kubiak Long timer

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    yea on the road the thing is a blast! first gear gives off a nice atc tire spinning sound and a wide black mark on the road when popping the clutch standing taking off fast, talk about tuning peoples heads when i take off like that. love it! going to try it out off road sunday. cant wait.
    #24
  5. kubiak

    kubiak Long timer

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    there might be a little rougher ride over big holes since the 18 incher would drop into them more than a 21 incher. i all depends on the terrain i think. i got a bad back and knees now so i do easier terrain now days so the tw setup fits me better. the 18 incher is heavier than my 21 inch setup too.
    #25
  6. kubiak

    kubiak Long timer

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    yea thats one of those things with drum brakes. i might need a oversize front disc to compensate till i get disc on the rear.
    #26
  7. NJ-Brett

    NJ-Brett Brett

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    An 18 inch wheel does not really work very well off road, but fitting a bigger (and taller) tire helps.
    It adds weight though, making it hard to loft the front wheel over things, at least on the TW200 with its limited power.

    On the TW200 with a good big front tire (the stock tire is very wimpy) you can hit almost anything and just not feel it much.
    On other bikes, I always (tried to) avoided roots and so on, with the TW I just ignored them.

    I have tried dual sporting bikes with 18 inch front wheels, and they gave a very rough ride.
    #27
  8. AST236

    AST236 Long timer

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    Glad to see the great kubiak at it again!!

    Dude, you have some great fabrication skills and some serious imagination.

    Bravo, once again on a choice build. :clap:clap
    #28
  9. kubiak

    kubiak Long timer

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    yea i cant wait to try the setup on some trails, yesterday i aired down the big tires and rode in my back yard acres and the thing was so nice and smooth over the terrain. the extra sidewall just soaked up the rough stuff and the bike was so stable. before with my 17 and 21 wheels it would take a lot to tackle the terrain and the bike was all over the place hitting ruts and holes. i think its going to work out great for me.
    #29
  10. kubiak

    kubiak Long timer

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    thanks! im all excited like a kid in a candy store again!
    #30
  11. AST236

    AST236 Long timer

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    Glad to hear it!!

    I was stoked by what you did w/ the XR650L.

    Then the BMW was over the top.........

    Now this!!!!


    If there is ever an ADV Creativity Hall of Fame, you sir, are a shoe in for the first class of inductees.......
    #31
  12. kubiak

    kubiak Long timer

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    i[​IMG]
    if i had the money i would buy a ktm 950 super enduro and do it up with fat atv tires and rims. maybe in a few years. shot some semi flat black on the rear rim like the newer tws for now till i get my spoke kit then i can powdercoat it.
    #32
  13. Kawidad

    Kawidad Long timer

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    Very cool. Everytime I see your screen name as a thread starter I'm automatically in. :clap
    #33
  14. kubiak

    kubiak Long timer

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    thanks Kawidad!
    #34
  15. kubiak

    kubiak Long timer

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    [​IMG]
    there is a lot of work to convert the tw wheel to the bmw so i will try to post more info and pics. the stock tw uses a 428 chain and the bmw uses a 520 chain so i found out i can use a 83 yamaha xt250 rear sprocket since it has the same bolt pattern as the tw200 but uses a 520 chain. that was one big thing i was worried about before i found the sprocket. sorry for the ugly pics too, i got mismatched bolts and dirty parts but will replace and clean everything up soon.the sprocket flange in the pic was too far out to line up the chain to the bmw and the hub was too wide so i cut about 5/8 to 3/4 off the hub end and lost the 3rd bearing and outer axle seal in the process so i used a sealed bearing to keep the grime out.i cut the flange welds to move it inward about 5/8 of a inch to get the wheel centered and the chain line correct.
    #35
  16. kubiak

    kubiak Long timer

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    [​IMG]
    pic of my dakar when i just got it.
    #36
  17. kubiak

    kubiak Long timer

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    [​IMG]pic of the same bike a few months ago with 17 and 21 inch wheels
    #37
  18. kubiak

    kubiak Long timer

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    [​IMG]
    pic with 14 and 18 inch wheels.
    #38
  19. McJamie

    McJamie STROMINATOR

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    I know it's not really the direction your headed with this one, but Shinko makes some pretty aggressive street based tires for the TW. They're cheap too.I know how well a stock TW sticks to the pavement with OEM tires, I would be curious how that monster would work even gripper tires. More contact patch than some cars. You would probably run out of covering clearance pretty quickly though.

    Nice work.
    #39
  20. kubiak

    kubiak Long timer

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    yea i love the shinko 244s and ran them on my xr650l, they railed on corners in the twisty roads for sure. the front tire on my bike is the 244 and the rear tw tire really hooks up on corners too. i think the 244 and stock bridgstone tw rear is a great combo and they even look like they match as a set! i think im set for on and off road traction now. i was messing with the suspension today and going to hit the trails tomorrow. i will also hit the twisty roads on the way.
    #40