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Old 02-06-2007, 03:01 AM   #1
SRMark
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Default Re: Rake & Trail

The trail is where you ride a dirt bike. The rake is the thing you clear the trail with.



City folk!!
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Old 02-06-2007, 03:29 AM   #2
wilro09
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Default Re: Rake & Trail

It is more complicated than a simple post but here goes. Rake is the steering head angle. Trail is the difference between a point on the ground directly below the axle and an imginary point on the ground running inline with the steering head.



It seems simple but gets complicated by:

1. the triple trees offset from the steering head

2. the front wheel diameter

3. if the triple trees are offset from each other changing the angle of the fork tubes relative to the steering head

4. the location of the axle relative to the fork tubes



Essentially less trail means it turns sharper/quicker, more trail provides less of a twitchy feel at highway speeds.
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Old 02-06-2007, 03:49 AM   #3
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Default Re: Rake & Trail

It's easier to understand if you know basic trigonometry. Notice that it's similar to a right triangle. The perpendicular runs from the steering head to the ground. The rake angle gives you the hypotenuse. The trail is the 3rd side of the triangle which would run parallel to the ground. A bike with longer fork tubes can give more trail with a sharper rake angle than a bike with shorter fork legs. If you draw some triangles you can see how it works.
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Old 02-06-2007, 04:09 AM   #4
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Default Re: Rake & Trail

I gotta say...I never thought when I got up this morning I would hear the word "hypotenuse" used in a sentence....
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Old 02-06-2007, 04:15 AM   #5
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Default Re: Rake & Trail

Never mind all that mathmatics mumbo jumbo, just remember that lame-o gaywad cruisers have lower degrees of rake angle and lots of trail that's why they can only go in strait lines untill they get ridden off the road by the drunk wanna-be riding them,



Where as super cool dope-as-sh*t sportbikes have greater degrees of rake angle and less trail, that's why they can shredd corners like a ripper, dude piloted by the mad skillz of there totally bangin' riders..



Nothing to it...
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Old 02-06-2007, 04:30 AM   #6
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Default Re: Rake & Trail

Tomorrow's special word is "zinc oxide".
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Old 02-06-2007, 04:32 AM   #7
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Default Re: Rake & Trail

Oh sure. All we need is advice from the dude who rakes his shovelhead with a hacksaw and some JB Weld.
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Old 02-06-2007, 04:37 AM   #8
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Default Re: Rake & Trail

Do you miss ur MR. ALLCAPS? So, do I.



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Old 02-06-2007, 04:54 AM   #9
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Default Re: Rake & Trail

It says right on there it's a permanant repair
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Old 02-06-2007, 05:01 AM   #10
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Default Re: Rake & Trail

Now I'm confused. I thought cruisers were "raked out", i.e., had a high degree of rake, and sportbikes had less rake (especially the Buell XB9R/XB12R).



Whoops, I forgot the Buell wasn't a sportbike. Bad example. Just substitute UJS of your choice in the above example.



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