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  1. #1
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    Dot 5.1 okay for Hayes Stroker Trail?!?

    I'm going to bleed my brakes soon. Would it be okay to use Dot 5.1 instead of the regular Hayes Dot 4? Does modulation improve with Dot 5.1?

    Thanks in advance.

  2. #2
    Former Bike Wrench
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    Yes its OK, and probably not on the Modulation

    Honestly there is no reason to run 5.1 but you won't hurt anything

  3. #3
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    Reputation: Bikinfoolferlife's Avatar
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    In supplementing my Avid bleed kit's 4oz of 5.1 fluid, I went looking at various auto and motorcycle stores in my area, struck out on the first 4, success with the 5th (Napa and their own branded 5.1). 5.1's only advantage I've seen mentioned, over 4, is the higher boiling point (couldn't hurt IMO). I thought it would be easier to source, but guess most auto/moto uses don't need it?
    "...the people get the government they deserve..."
    suum quique

  4. #4
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    Would the change in viscosity change the way the brake lever feels? I'm trying to speed up lever action.

  5. #5
    Meh.
    Reputation: XSL_WiLL's Avatar
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    Yes, a change in viscosity would change the lever feel. But the change would probably not be significant.

  6. #6
    Former Bike Wrench
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    DOT 5.1 may have a higher boiling point but its not a guarantee. There are plenty of high boiling point DOT 4 fluids out there.

  7. #7
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    Got it guys. I'm just looking for a more snappy lever. I'll try out some Motul Dot 5.1.

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