Help with Science Experiment

Discussion in 'Motorized Bicycle General Discussion' started by Lachiepower0402, Jun 17, 2014.

  1. Davezilla

    Davezilla New Member

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    True... There's no way to blow your engine by putting the scouring pads in the muffler, I'm sure your scince teacher is just covering her butt just in case something happens to it during the testing...

    The stock end cap is actually too small for these so removing it will make a difference.
     
  2. Lachiepower0402

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    Thanks for your help everyone, I am going to ask my teacher when I go back to school tomorrow and see what she says after I show her this, which should be solid enough proof that it is alright.

    I will post the results of the experiment for everyone's benefit when I have completed the experiment
     
  3. Davezilla

    Davezilla New Member

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    Sounds good... Hopefully you'll get a good grade on it and everything goes well.
     
  4. allen standley

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    Oh this is gonna be COOL and good for all of us!!! can't wait til tomorrow. Good Luck Lachie
     
  5. Lachiepower0402

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    Well now this is a pain in the ass. I have been denied to be able to do the experiment because the head science teacher thinks that shoving things up my muffler and going full throttle to test max speed is to dangerous.

    The only other idea I have is testing which rubber brake pad is the best for stopping power, do different rubber brake pads make a difference to stopping time or brake systems e.g. cables, levers, etc.
     
    #25 Lachiepower0402, Jun 24, 2014
    Last edited: Jun 24, 2014
  6. xseler

    xseler Well-Known Member

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    The Kool Stop Salmon pads seem to be the best. The ones that that come stock on our cheaper bikes are just plain scary when a motor is involved.....jmo.
     
  7. mapbike

    mapbike Active Member

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    Ditto....

    The cool srop pads are excellent compared to some of the cheapy black ones in my experience also.

    Map
     
  8. Davezilla

    Davezilla New Member

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    I'll agree on the brake experiment too... just hope they don't say that one is too dangerous... That would be a good test tho... comparing stopping distance between the cool stop pads and the cheap ones that usually come with most bikes....
     
  9. Lachiepower0402

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    #29 Lachiepower0402, Jun 25, 2014
    Last edited: Jun 25, 2014
  10. Davezilla

    Davezilla New Member

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    I think those are the ones...
    As far as different rim brake systems, there are 3 main types, and several offshoots of each type.
    The original type is the side pull caliper brakes where the caliper is mounted to a center brace abover the wheel, these are probalby the least effective since there's a lot of flexing that the calipers can do since there are a lot of turns and bends in each caliper half and the scissor mechanism, they tend to absorb most your brake pull by flexing a lot.

    Then later on the V brakes (cantilever type) were designed and started showing up on BMX bikes in the early 80's. these brakes offered considerably better stopping power since each lever was on it's own mount on each side of the wheel and connected by a common cable with the brake cable pulling on this center cable, the feel was more direct and positive since the arms were more straight and had less curves or bends in them which for the most part eliminated the flexing that was common to the original side pull design, but still took a lot of lever pull effort compared to the third design..

    The thrid design is the linear pull design which is very similar to the cantilever design since each lever arm is on it's own pivot on each side of the wheel, but this design, the center cable is eliminated and the single cable comes in from one side and connects to the other side so it has better leverage at the brake handle so it offers more stopping power with little or no flexing of the arms, and with the longer arms there's slightly more lever movement but less pull effort needed, these are the most common on most mountainbikes since they offer the best overall stopping power.
     
  11. mapbike

    mapbike Active Member

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    Here is what you want, I think the link you listed is for replacement pads only, so unless you already have brakes that will take Kool Stop replacement pads you will need to get a complete brake pads set.

    http://www.ebay.com/itm/Kool-Stop-D...Cycling_Parts_Accessories&hash=item56665a98ef

    http://www.ebay.com/itm/Kool-Stop-T...Cycling_Parts_Accessories&hash=item5affad1a70

    http://www.ebay.com/itm/Kool-Stop-b...05&prg=10163&rk=5&rkt=6&sd=290777161918&rt=nc

    http://www.ebay.com/itm/Kool-Stop-b...05&prg=10163&rk=4&rkt=6&sd=200973608236&rt=nc

    Here are some others that use replacable shoes, not Kool Stop but they are nice looking brakes and my actually take Kool Stop replacement shoes judging from how they look.

    http://www.ebay.com/itm/NEW-Aican-B...161046278029?pt=US_Brakes&hash=item257f1b2f8d

    Map
     
    #31 mapbike, Jun 26, 2014
    Last edited: Jun 26, 2014

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