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vjcrose
Roostin Away
Joined: 26 Feb 2007
Posts: 566
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 Posted: Thu Jul 10, 2008 7:47 pm Post subject: MotoX toes question???? |
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ok for MotoX should your front wheels toe in or toe out??? Should it be different for different styles of riding? and by how much?
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triple"A"
Roostin Away
Joined: 04 Aug 2006
Posts: 941
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| Posted: Fri Jul 11, 2008 2:32 pm Post subject: |
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toe out and negative camber for any riding i reckon
the amount of each and castor too, is something you can experiment with as rider weight vs type of suspension , ride conditions etc can affect the value of toe out and negative camber you will find best for you
try to simulate maximum suspension travel whilst the bike is static and observe the variance of these angles through the range |
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PeteW
Moderator
Joined: 09 Feb 2006
Posts: 1877
Location: Doreen, Vic
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| Posted: Sat Jul 12, 2008 10:56 am Post subject: |
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we generally run toe in of around 5mm or 1/4 of an inch. always set with the quad on the ground at static sag height (ie the weight of the quad but not the rider)
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triple"A"
Roostin Away
Joined: 04 Aug 2006
Posts: 941
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| Posted: Sat Jul 12, 2008 3:23 pm Post subject: |
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hmmmmmmmmm interesting pete
toe in tends to promote tippy cornering, but each to their own
as the suspension compresses on landing the tie rods move to a more horizontal position thus giving them a geometrical lengthening in proportion to the remainder of the control arm settings and inner tie rod location, in turn making the toe in greater. (this is exagerated on a single A arm junior quad)
on acceleration the opposite occurs as the suspension lifts but on a much lesser scale, therefore to strike a happy medium to create a "stable average" we run about 2-3mm toe out with approx 4 degrees neg camber, and castor at a rough 5-6 degrees positive. that's for mx
for speedway it's a lot different though as we set each side differently (it's a secret lol) but still toe out up to 5mm depending on machine and suspension (and whether the front is lowered). because most of the cornering is done at opposite lock and sliding, toe out on turns can also affect handling and there is merit in altering the leverage point at the bottom of the stem to accomodate this
bet ya wished ya never asked now hey vj ? lol
wait till bullet gets hold of this thread , it'll be more confusing lol   |
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PeteW
Moderator
Joined: 09 Feb 2006
Posts: 1877
Location: Doreen, Vic
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| Posted: Sat Jul 12, 2008 5:41 pm Post subject: |
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Depends on what kind of arms your running too Kev, I've found with LSR that there is a massive variance in toe in across the range of travel vs say Laegers where there is not so much.
On the Jumbo for example I run almost zero toe as the geometry is "profanity removed" and it has heaps of deflection, also around 8 deg caster to counter its quick steering tendencies as its so short.
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Scooter
Blaster class
Joined: 14 Feb 2008
Posts: 162
Location: Adelaide
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| Posted: Sat Jul 12, 2008 7:12 pm Post subject: |
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Kev you’re totally right about Bullet. He's got lots of good ideas.
I asked the same question when setting up my front end.
The Lonestar web site has a great link to explain camber, caster & toe stuff.
After reading there comments I have a better idea that I know nothing about this subject.
But Camber and Caster needs to be right before tow in or out.
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triple"A"
Roostin Away
Joined: 04 Aug 2006
Posts: 941
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| Posted: Mon Jul 14, 2008 4:00 pm Post subject: |
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| so it would seem that it can vary depending on suspension, machine etc.??? not unlike the first post i made |
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