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Thread: new bike idea

  1. #1
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    new bike idea

    one of my friends took an old diamondback assault 24" bmx cruiser and put a dart 3 on the front. i was thinking about doing the same. what do you guys think? good idea for a dirt jumper?

  2. #2
    Meh.
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    Dart 3 is not a dirt jump fork...

    And putting a suspension fork on a cruiser will slack it out like crazy.

  3. #3
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    i was going to put something other than a dart 3 on it.

  4. #4
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    Axle to crown is way too long. It'll ride/look like a chopper, and then snap...

  5. #5
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    ok sorry. forgot to mention that the steerer tube is cut so that the original bmx stem sits in the normal spot. and XSL, what do you mean by slacked out?

  6. #6
    Meh.
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    It doesn't matter what length the steer tube is in. The axle to crown measurement of a suspension fork is much longer than the rigid fork. This will cause all the angles to become more slack. This will raise the bottom bracket.

  7. #7
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    is that always bad? i'm 6'4" and i don't think that i could ride a bmx cruiser very comfortably. i rode my friends and it works well. could it mess up the bike?

  8. #8
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    If you're tall you want something with a longer top tube. Not bad geometry.

    For instance look at this mongoose fireball with a 70* head tube angle



    Notice the short fork at a steep angle from the ground. This makes a bike quick handling and predictable - good for park/street.

    Now look at this DH bike



    Thats only a 5* difference it HT angle, but you can see how "raked out" or "slack" it is compared to the other bike.

    Thats what you would be doing to the 24" cruiser, adding a longer fork changes the head tube angle angle making the steering sloppy and undesireable for this type of riding.

    The dart is crappy and would eventually break.

    A better fork would be wasted on a set up with such poor geo.

  9. #9
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    ok. thanks for explaining. and yeah i know the dart sucks. no way i was going to put that on there

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