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  1. #1
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    What is Brake Jack

    I'm a complete idiot and this, and I know that this may be one of the most obvious questions out there, but I have come to the conclusion that I have no idea what brake jack is. What is brake jack (and yes, I've searched/looked at stickies)?

    Thanks
    Riding and loving it

  2. #2
    Gravity Rides Everything
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    it's caused by torque from the rear brake. it causes the rear suspension to compress slightly when you use the brake. this makes the rear end feel stiffer.

    horst, DW link, and VPP are reported to suffer less/not at all from this condition.

  3. #3
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    haha! omg! you don't know what a brake jack is? what a n00b! idiot...haha!!

    j/k...i have no idea what it is either
    Abba Zaba, you my only friend.

  4. #4
    I railed it like Kong
    Reputation: Arkon's Avatar
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    Also known as stink bugging on certain suspension types. Single pivots, when you grab rear brake, will extend extend the travel and not give when you hit stuff. So it's like your rear end is at full travel. I feel it on my coiler pretty good when i'm doing long descents and i drag the brakes more than i should.
    I'm UNIQUE... just like everybody else.

  5. #5
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    So the suspension loses all compressibility and becomes useless? Thanks

    I was under the impression that VPP suffered from a lot of brake jack.
    Riding and loving it

  6. #6
    General Rabble-Rouser
    Reputation: Karupshun's Avatar
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    Quote Originally Posted by goldenraptor
    So the suspension loses all compressibility and becomes useless? Thanks

    I was under the impression that VPP suffered from a lot of brake jack.

    it's really easy to feel how a suspension design will feel under braking on the showroom floor

    sit on it, allow the suspension to sag

    stand up, lock the rear disc tight, and then sit down and feel how difficult it is to have the rear compress even to where it should sag

  7. #7
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    The responses seem to contradict each other (or I am just misunderstanding).
    Does the suspension compress or decompress upon brake application?

  8. #8
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    Quote Originally Posted by Strong Bad
    The responses seem to contradict each other (or I am just misunderstanding).
    Does the suspension compress or decompress upon brake application?

    a better term is brake squat

    as the brakes are applied, the forces cause the suspension travel to pack up, and keeps the rear from returning to full travel

  9. #9
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    its not when someone steals your brakes...?

  10. #10
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    Quote Originally Posted by snowdenn
    its not when someone steals your brakes...?

    no no, that's bike jack

  11. #11
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    Lol... most random yet related image ever
    Riding and loving it

  12. #12
    Don't touch me!
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    Quote Originally Posted by snowdenn
    its not when someone steals your brakes...?
    Noooo

    Its what stops vehicles. And my name's not Jack.
    [SIZE=3]No offense to KB, but if I see another "Strong, light, cheap. Pick two" line on this site...

    [/SIZE][SIZE=1]MCM# eleventy billion

    [SIZE=2]No offense to thieves, but if I see another "Ride it like you stole it" line on this site...[/SIZE]
    [/SIZE]

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