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Posted: 9/7/2010 8:09:03 AM EDT
[#1]
I disagree with your characterization of a motorcycle tread pattern. Can you post a pic showing what you're saying?
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Posted: 9/7/2010 8:09:23 AM EDT
[#2]
Because the center of the tire isn't in contact with the pavement when you need traction most on a Motorcycle
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Posted: 9/7/2010 8:11:50 AM EDT
[#3]
Quoted:
Because the center of the tire isn't in contact with the pavement when you need traction most on a Motorcycle Why does the rear tire have the forward directional tread then? |
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Posted: 9/7/2010 8:12:24 AM EDT
[#4]
Same reason it's reversed on the front wheels (non driven) on a motor grader. It aids steering ability.
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Posted: 9/7/2010 8:13:34 AM EDT
[#5]
Quoted:
Quoted:
Because the center of the tire isn't in contact with the pavement when you need traction most on a Motorcycle Why does the rear tire have the forward directional tread then? Because it's driven. It aids in traction in loose/wet ground. |
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Posted: 9/7/2010 8:14:10 AM EDT
[#6]
Quoted:
I disagree with your characterization of a motorcycle tread pattern. Can you post a pic showing what you're saying? Too lazy. Look at any sport bike with Michelin Pilot powers or any other directional z-rated tire and you can see what I mean. Some people even install the front backwards because they only looked at the pattern (and match it with the rear tire). But you have to look at the little arrow marker on the sidewall to see which way she's supposed to spin. I lever on my own tires and always wondered this. |
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Posted: 9/7/2010 8:15:01 AM EDT
[#7]
Quoted:
Quoted:
Quoted:
Because the center of the tire isn't in contact with the pavement when you need traction most on a Motorcycle Why does the rear tire have the forward directional tread then? Because it's driven. It aids in traction in loose/wet ground. But a RWD drive car has matching front and rear tire directional tread. |
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Posted: 9/7/2010 8:15:20 AM EDT
[#8]
Quoted:
Quoted:
Quoted:
Because the center of the tire isn't in contact with the pavement when you need traction most on a Motorcycle Why does the rear tire have the forward directional tread then? Because it's driven. It aids in traction in loose/wet ground. But a RWD drive car has matching front and rear tire directional tread. |
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Posted: 9/7/2010 8:15:46 AM EDT
[#9]
This has come up on the SabMag mailing list a few times.
On common answer is that it reduces or corrects hydroplaning if you lock the front wheel. Another common answer is the observation that the same model tire made for the European market has the "arrows" in the opposite direction, and that the tread pattern may be chosen more by local aesthetics than any overbearing technical reason. |
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Posted: 9/7/2010 8:17:54 AM EDT
[#10]
yep I noticed this with the last set of tires i put on thought it was wrong til,I looked at the rotation arrows and now notice it on other bikes my theory is the tread faces the direction of most force with the rear it is acceleration and the front it is breaking they meet max force in different directions therefore the tread run opposite if ya look even the low performance motorcycle tires are the same way on most cruisers  |
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Posted: 9/7/2010 8:24:38 AM EDT
[#11]
Quoted: We're going to need some data to support that one. Michelin, Dunlop, Avon and Continental tires are the same in the US and in other markets. I've never heard of a "reversed arrow" on a tire.This has come up on the SabMag mailing list a few times. On common answer is that it reduces or corrects hydroplaning if you lock the front wheel. Another common answer is the observation that the same model tire made for the European market has the "arrows" in the opposite direction, and that the tread pattern may be chosen more by local aesthetics than any overbearing technical reason. The sipes on a motorcycle radial front tire are designed to move the water into a narrow channel, thus eliminating spray. Look at this page. These are the tires I have on my BMW. If you notice the image at the top of the page, you will see that the front tire produces a very small and shallow rooster-tail, whereas the rear tire sprays the water higher and farther. |
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Posted: 9/7/2010 8:29:02 AM EDT
[#12]
Quoted:
The sipes on a motorcycle radial front tire are designed to move the water into a narrow channel, thus eliminating spray. Look at this page. These are the tires I have on my BMW. If you notice the image at the top of the page, you will see that the front tire produces a very small and shallow rooster-tail, whereas the rear tire sprays the water higher and farther. Makes sense. 
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Posted: 9/7/2010 8:32:36 AM EDT
[#13]
Quoted:
Quoted:
Because the center of the tire isn't in contact with the pavement when you need traction most on a Motorcycle Why does the rear tire have the forward directional tread then? I would imagine for steering. And more importantly, considering 70% or so of your braking force is exerted by the front brake.. |
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Posted: 9/7/2010 10:25:32 AM EDT
[#14]
Quoted: If you do it right, 100% of your braking work is done by the front brake.Quoted: Quoted: Because the center of the tire isn't in contact with the pavement when you need traction most on a Motorcycle Why does the rear tire have the forward directional tread then? I would imagine for steering. And more importantly, considering 70% or so of your braking force is exerted by the front brake.. |
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