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Will this style of bars work?

Discussion in 'Your 250cc Projects' started by andrew, Jun 27, 2014.

  1. andrew

    andrew Well-Known Member Premium Member Contributing Member

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    Hey guys and girls, ive been thinking of getting bar risers for the across. Seen some that look ok but then I had a brain fart.
    maybe change the bars themselves. Now I cant weld to save my life so I would be getting them made. but i was wondering if these would work and if so what would I need to be able to do it. ie- type of metal, would chrome add thickness, or anything else I might need to know before going down this path

    140627_204320.png
     
  2. Mclaren

    Mclaren Well-Known Member Contributing Member

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    Chrome will add 1mm or 2 on diameter
     
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  3. kiffsta

    kiffsta Senior Member

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    interesting, just watch the length of your cables and wiring for your switch blocks , you need them tostretch full lock and back the otherway
     
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  4. Murdo

    Murdo The Good Doctor Staff Member Contributing Member Ride and Events Crew

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    It would be fine so long as good welds. My ST1100 has welded bars similar to that from the factory.
    Use mild steel tube of 22mm diameter with a wall thickness of at least 2.5mm, preferably TIG welded. This can then be painted or plated (chrome is usually only .03mm thick).
    If you wished to use stainless steel, be careful that you use a grade suitable for the stresses/vibration, and again TIG weld. Stainless can then be polished to look like chrome.
     
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  5. risky

    risky risky

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    what murdo is saying is that stainless can stress fracture. chroming hard steel can also do the same.
     
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  6. Murdo

    Murdo The Good Doctor Staff Member Contributing Member Ride and Events Crew

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    That is why you use 'mild' steel.
     
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  7. andrew

    andrew Well-Known Member Premium Member Contributing Member

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    This is really good info guys thanks.
    any idea where id find mild steel tubing. I went to masters today and they are mainly pre made stuff.
     
  8. andrew

    andrew Well-Known Member Premium Member Contributing Member

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    One more question. if i were to bend the steel instead of cutting and welding, would the bending cause too much stress on the steel
     
  9. Mclaren

    Mclaren Well-Known Member Contributing Member

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    Can get bar from any steel shop like bohler or one steel bending should be fine
     
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  10. andrew

    andrew Well-Known Member Premium Member Contributing Member

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    Thanks mate
     
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  11. Mclaren

    Mclaren Well-Known Member Contributing Member

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    If u flush with cash go titanium lol
     
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  12. andrew

    andrew Well-Known Member Premium Member Contributing Member

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    With diamond bar ends? Should look schmick:lolsign:
     
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  13. risky

    risky risky

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    bending will cause stress and the tigter you bend the more stress.if an exhaust shop does the bend it can be done gently.
     
  14. andrew

    andrew Well-Known Member Premium Member Contributing Member

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    Just an update on this. Its not going to work. I must have forgot that the handlebars turn. The controls and break fluid reservoir would hit the fairing near the windscreen. I would have to also modify that, then something else and so on till I have a completley new bike.
    But it was fun to play around with the look a bit.
     
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  15. Phil

    Phil Senior Member Contributing Member

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    I know what you mean Andrew, at one stage I looked at getting some different riser for a bike I had. It looked real easy at the time however I had not given any or enough thought to cables being stretched to the limit. Not a huge issue but some hydraulics hose had to be lengthened as well. So like you, I had a fiddle and decided to leave alone, kinda fun while it lasted.:)
     
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