# Need some ideas for a downhill cart

**URL:** <https://forums.speedlife.net/t/need-some-ideas-for-a-downhill-cart/54742>\
**Category:** NYSpeed Off Topic\
**Created:** [September 11, 2008, 1:52pm UTC](https://forums.speedlife.net/t/need-some-ideas-for-a-downhill-cart/54742 "2008-09-11T13:52:13Z")\
**Posts on this page:** 12\
**Page:** 2

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**Author:** ![Twizted](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/twizted/32/7206_2.png) [@Twizted](https://forums.speedlife.net/u/Twizted)\
**Post date:** [September 11, 2008, 3:09pm UTC](https://forums.speedlife.net/t/need-some-ideas-for-a-downhill-cart/54742/21 "2008-09-11T15:09:54Z")

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> [@mindless](#):
>
> Yea i would say find the biggest wheels and tires you can, think old road bike or something that will help to cut down on resistance.

U going to the R.O.C???

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**Author:** ![mechanicalmadness](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mechanicalmadness/32/5022_2.png) [@mechanicalmadness](https://forums.speedlife.net/u/mechanicalmadness)\
**Post date:** [September 11, 2008, 5:17pm UTC](https://forums.speedlife.net/t/need-some-ideas-for-a-downhill-cart/54742/22 "2008-09-11T17:17:07Z")

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Hah, Newman covered it. Thats totally bad ass. As a little guy me and my friends used to build shit like that. There is nothing more fun that a silly little cart that sits on four massive ball bearings. Its like driving on ice, its too much fun.

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**Author:** ![Twizted](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/twizted/32/7206_2.png) [@Twizted](https://forums.speedlife.net/u/Twizted)\
**Post date:** [September 11, 2008, 5:19pm UTC](https://forums.speedlife.net/t/need-some-ideas-for-a-downhill-cart/54742/23 "2008-09-11T17:19:59Z")

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buuuump

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**Author:** ![mechanicalmadness](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mechanicalmadness/32/5022_2.png) [@mechanicalmadness](https://forums.speedlife.net/u/mechanicalmadness)\
**Post date:** [September 11, 2008, 5:31pm UTC](https://forums.speedlife.net/t/need-some-ideas-for-a-downhill-cart/54742/24 "2008-09-11T17:31:41Z")

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> **[Honor Roller](http://simpsons.wikia.com/wiki/Honor_Roller)**
>
> The Honor Roller is Martin's soapbox derby car. It is designed by NASA engineers and resembles the US Space Shuttle in appearance. The car goes so fast that Martin is unable to stop and crashes, resulting in his inability to, and fear of, competing...

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**Author:** ![newman](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/newman/32/7569_2.png) [@newman](https://forums.speedlife.net/u/newman)\
**Post date:** [September 12, 2008, 5:39am UTC](https://forums.speedlife.net/t/need-some-ideas-for-a-downhill-cart/54742/25 "2008-09-12T05:39:51Z")

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If the road is super straight and smooth, you COULD do a street luge style with a LOT of rollerblade wheels… Adding wheels cuts down on the normal force per axle, and cuts down on rotational inertia (important if you start from a standstill, and aren’t pushed)…

but you need to use a lot of them…

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**Author:** ![mindless](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mindless/32/7286_2.png) [@mindless](https://forums.speedlife.net/u/mindless)\
**Post date:** [September 12, 2008, 10:26am UTC](https://forums.speedlife.net/t/need-some-ideas-for-a-downhill-cart/54742/26 "2008-09-12T10:26:37Z")

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^^^ wouldn’t the more wheels alone create more resistance?

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**Author:** ![newman](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/newman/32/7569_2.png) [@newman](https://forums.speedlife.net/u/newman)\
**Post date:** [September 12, 2008, 10:28am UTC](https://forums.speedlife.net/t/need-some-ideas-for-a-downhill-cart/54742/27 "2008-09-12T10:28:43Z")

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> [@mindless](#):
>
> ^^^ wouldn’t the more wheels alone create more resistance?

it’s another inverted parabola… too much load on the axle will create excessive friction.

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**Author:** ![forthekicks385](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/forthekicks385/32/7484_2.png) [@forthekicks385](https://forums.speedlife.net/u/forthekicks385)\
**Post date:** [September 12, 2008, 10:50am UTC](https://forums.speedlife.net/t/need-some-ideas-for-a-downhill-cart/54742/28 "2008-09-12T10:50:43Z")

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try this maybe  
[http://nyspeed.com/forums/showthread.php?t=57309](http://nyspeed.com/forums/showthread.php?t=57309)

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**Author:** ![Twizted](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/twizted/32/7206_2.png) [@Twizted](https://forums.speedlife.net/u/Twizted)\
**Post date:** [August 24, 2010, 11:49am UTC](https://forums.speedlife.net/t/need-some-ideas-for-a-downhill-cart/54742/29 "2010-08-24T11:49:32Z")

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bumpppp

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**Author:** ![mechanicalmadness](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mechanicalmadness/32/5022_2.png) [@mechanicalmadness](https://forums.speedlife.net/u/mechanicalmadness)\
**Post date:** [August 26, 2010, 6:40pm UTC](https://forums.speedlife.net/t/need-some-ideas-for-a-downhill-cart/54742/30 "2010-08-26T18:40:02Z")

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Shit i completely forgot about this! i just might have to build something.

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**Author:** ![Twizted](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/twizted/32/7206_2.png) [@Twizted](https://forums.speedlife.net/u/Twizted)\
**Post date:** [September 9, 2010, 7:18am UTC](https://forums.speedlife.net/t/need-some-ideas-for-a-downhill-cart/54742/31 "2010-09-09T07:18:45Z")

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well its 2 weeks away. i need to find one more road bike tire now

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**Author:** ![Spam16v](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/spam16v/32/5287_2.png) [@Spam16v](https://forums.speedlife.net/u/Spam16v)\
**Post date:** [September 9, 2010, 10:46am UTC](https://forums.speedlife.net/t/need-some-ideas-for-a-downhill-cart/54742/32 "2010-09-09T10:46:41Z")

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LARGE diameter and HIGH pressure, and everything newman said, lol. should roll nice and smooth

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