Bullitproof

  • Member since Jun 29, 2011
  • 68 Followers
  • Vancouver , British Columbia
  • Male / 19

#lifebehindbars

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Bullitproof RichardCunningham's article
Aug 27, 2014 at 19:17
21 hours
E-Thirteen Finally Answers the Age-Old Question:
I think what everyone here needs is a straight to the point physics 101 class from an engineer. I'm going to assume everyone here also has enough IQ's such that you know how to pump your tires up. ;) The torque required to spin a wheel with a certain angular acceleration is equal to the cross product (multiplication for simple cases) of the desired angular acceleration and the moment of inertia. Angular acceleration is just a rotational form of linear velocity. the radius of the wheel multiplied by the angular acceleration is the linear velocity (bike speed). The moment of inertia for a round object is just the total weight of that object (well, mass..) multiplied twice by the radius of the wheel. So, if you consider the torque you apply to the wheel as your effort or "how hard it is to pedal" and assume you want to accelerate at a certain rate, the ONLY way you can argue that a wheel accelerates faster is either that it is lighter, or has a smaller radius. By this we also see that the effort(torque) is way more dependent on the radius of the wheel than it's mass. In laymans terms, the size of the wheel, has a ton more impact on how hard it is to accelerate that how much it weighs. 29ers are waaaay lighter than normal rims, and that's how they compensate for the added radius
Bullitproof coastphoto's article
Aug 27, 2014 at 11:29
1 days
Being Photographed in the Whistler Mountain Bike Park
With the cost of gear they can buy(I'm guessing a cannon mark 3, you can pay for it faster (maybe even a day) on a line with five dollar shots. This is what people don't get, yes the one time cost of a camera is sorta expensive, but it doesn't cost shit to take a picture!
Bullitproof ChrisRicciVideo's article
Aug 27, 2014 at 11:25
1 days
Video: Remy M├ętailler Burns the Whistler Bike Park
It's more of a fear of having to take the walk down the hill for a tube or a tacod wheel that prevents me from trying something like that
Bullitproof BellBikeHelmets's article
Aug 26, 2014 at 17:14
2 days
Bell Introduces Super 2R Helmet - Press Release
haha might as well just not have the chin guard at all, it is literally just fo' sho'
Bullitproof remy-metailler's photo
Aug 25, 2014 at 15:49
Aug 25, 2014
I cant actually believe how many people dont know what POD stadns for when its stamped to the right of each PHOTO of the day.. hahaha

Bullitproof remy-metailler's photo
Aug 25, 2014 at 15:47
Aug 25, 2014
^that is picture of the year

Bullitproof RichardCunningham's article
Aug 21, 2014 at 1:24
Aug 21, 2014
Bullitproof rachellefrazer's article
Aug 20, 2014 at 17:36
Aug 20, 2014
Crankworx 2014 Retrospective
semenuk is a class act, a real champ! can't wait till he gets back into the fmb tour full fledge
Added 1 video
Aug 19, 2014 at 23:46
Aug 19, 2014
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Added 1 video
Aug 19, 2014 at 6:30
Aug 19, 2014
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