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#1
10-06-2007, 12:21 PM
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Can anyone explain.....
Can anyone explain why since 80% of stopping power is on the front, it is the rear rotor that has the larger screws holding it on? (at least on Fatboy wheels)
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Jim 
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#2
10-06-2007, 12:38 PM
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Don't rightly know, Du..but I'm gonna guess it's got sumptin' to do with inertia.
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#3
10-06-2007, 12:44 PM
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Wow. Everybody's got their brain on today!
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Just another damn "Dave"  Decidedly unpleasant, does not play well with others. Fluent in Pidgin Cigar Spanish.   http://sherlynpopelka.net/              Revelation 19:11 And I saw heaven opened, and behold a white horse; and he that sat upon him was called Faithful and True, and in righteousness he doth judge and make war.            *Usual manly disclaimer applies, if applicable.
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#5
10-06-2007, 06:02 PM
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I think it has to do with weight transfer. When you hit the brakes, weight shifts forward to the front wheel. The back end gets lighter hence less traction. My .02.
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Dan    '08 Ultra S&S SPO's
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#6
10-06-2007, 06:26 PM
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Quote:
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Dave..........  .........       Some Mornings I Wake Up Grouchy.....others, I Let Her Sleep 
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#8
10-06-2007, 06:51 PM
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Quote:
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Trooper113  NRA Endowment Member AMA Member
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#9
10-06-2007, 06:56 PM
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I've always wondered that too. But what I really like is...eight posts, and no one has a frikin' clue.
If I wanted a technical answer, I could go to another site...But I won't!
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#10
10-06-2007, 06:56 PM
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Quote:
Because there is more mass. The rear wheel is bigger and heavier, and has the drive sprocket, plus it is the drive wheel, and you are putting the brakes on the motor too. You are asking the rear wheel to overcome torque, besides braking the wheel.
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Jim I drawl  Did you know I liked Bobbers?       Last edited by Highmiles; 10-06-2007 at 09:50 PM.
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#11
10-06-2007, 07:09 PM
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Quote:
 Yeah,,, what Highmiles said sounds plausible  The front end would look like something made in Eastern Europe if they put big bolts on it.  Looks over function is the intended purpose of smaller parts.
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#13
10-06-2007, 08:46 PM
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Gray, those cryptic posts only work for me.
I knew what you were saying.
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Just another damn "Dave" Decidedly unpleasant, does not play well with others. Fluent in Pidgin Cigar Spanish. http://sherlynpopelka.net/ Revelation 19:11 And I saw heaven opened, and behold a white horse; and he that sat upon him was called Faithful and True, and in righteousness he doth judge and make war. *Usual manly disclaimer applies, if applicable.
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#15
10-06-2007, 10:40 PM
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Are the rotor and pulley bolts the same? If they are, it could be a bow to assy line efficiency and nothing more. I am sure the ones up front are engineered to handle their predicted load--I doubt even HD could weather that lawsuit.
Never looked at the holes close either; are they drilled straight through the hub from rotor to pulley? Again, if they are, and the pulley needs the larger bolt, it does not make manufacturing sense to drill 2 different sized holes. All speculation, since I'm too lazy to get up and walk out to the garage and look.
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Tim Ancient '79 FXS w/ probably about the same HP as a tractor Equally ancient '79 Massey Ferguson 255 Somewhat dilapidated, yet functional, Kubota L2500 '20 Branson 3620 '18 Ram 3500 Diesel '02 Wrangler X, 4" lift on 33 x 12.50s Wilderness Systems Tarpon 140 Felt Nine 50 Killin' more bees than Monsanto  .  . 
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