dunlop 404 tread/arrow problem
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Seasoned HDF Member
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From: texas
dunlop 404 tread/arrow problem
am i seeing things or is the arrow going the wrong way????
i had jp send me a rear tire then saw my front was cracking up at an acclerating rate and up into the treads......i just went ahead and got another d404 from the indy cause price was same and wanted to ride last weekend.i noticed the rear wheel tread was not right and checked arrow and it wasnt right either....looked at the front arrow and they had it going the wrong way(my rotor is on the right side and they were in a hurry...) so i get them to reverse the tires so arrows are correct....i then take em home and mount them...while actually putting the front tire on i notice the tread doesnt look right but the arrow is in the right direction......now i gotta go back and have them do the front for the 3rd time.i kinda feel like an azz but dam they really should have paid attention..................heres a pic in case i am seeing things....
i had jp send me a rear tire then saw my front was cracking up at an acclerating rate and up into the treads......i just went ahead and got another d404 from the indy cause price was same and wanted to ride last weekend.i noticed the rear wheel tread was not right and checked arrow and it wasnt right either....looked at the front arrow and they had it going the wrong way(my rotor is on the right side and they were in a hurry...) so i get them to reverse the tires so arrows are correct....i then take em home and mount them...while actually putting the front tire on i notice the tread doesnt look right but the arrow is in the right direction......now i gotta go back and have them do the front for the 3rd time.i kinda feel like an azz but dam they really should have paid attention..................heres a pic in case i am seeing things....
Stellar HDF Member
Joined: Feb 2006
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From: Houston Texas
Straydog.......
The tire in the pic is mounted correctly.
The grooves are made to channel the water to the rear center where it is slung off.
Leave it mounted as you have it with the arrow pointing forward.
pg
The tire in the pic is mounted correctly.
The grooves are made to channel the water to the rear center where it is slung off.
Leave it mounted as you have it with the arrow pointing forward.
pg
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From: texas
shepdog it is a front tire.
pinion how could the water be slung off from the center?seems that would increase the chances of it hydroplaning as it would seem the water would have no place to go.if it was going in reverse(reverse from arrow) it would appear that the water would be channeled out the sides.
pinion how could the water be slung off from the center?seems that would increase the chances of it hydroplaning as it would seem the water would have no place to go.if it was going in reverse(reverse from arrow) it would appear that the water would be channeled out the sides.
Stellar HDF Member
Joined: Feb 2006
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From: Houston Texas
pinion how could the water be slung off from the center?seems that would increase the chances of it hydroplaning as it would seem the water would have no place to go.if it was going in reverse(reverse from arrow) it would appear that the water would be channeled out the sides.
Yes, I know the tire looks like it is backward but when you are going through a wet curve in the road leaned over, you want that water to be carried to the center of the tire, not the shoulder.
Trust me when I say Dunlop did not get the arrow pointing in the wrong direction.
Back in my 'dirt track' days Good Year came out with a new tire called the Grasshopper.
We bought one to put on the CH rear and this tire had a directional arrow on it. One of the first I had seen.
The Grasshopper was a semi knobby with a 'V' pattern of tread.
The first thing I noticed was the arrow was pointing in the 'wrong direction.'
So I mounted it with the arrow turned pointing back.
The result?
At the second race the nice knobby tread had split down the middle of the tire, ruining it.
There was $35 down the drain. (That would be like $125 today.)
So mount with the arrow in the forward direction. The engineers have this all figured out and that is the reason the arrow is put on the tire.
If it could be mounted either way there will be no arrows on it.
pg
Yes, I know the tire looks like it is backward but when you are going through a wet curve in the road leaned over, you want that water to be carried to the center of the tire, not the shoulder.
Trust me when I say Dunlop did not get the arrow pointing in the wrong direction.
Back in my 'dirt track' days Good Year came out with a new tire called the Grasshopper.
We bought one to put on the CH rear and this tire had a directional arrow on it. One of the first I had seen.
The Grasshopper was a semi knobby with a 'V' pattern of tread.
The first thing I noticed was the arrow was pointing in the 'wrong direction.'
So I mounted it with the arrow turned pointing back.
The result?
At the second race the nice knobby tread had split down the middle of the tire, ruining it.
There was $35 down the drain. (That would be like $125 today.)
So mount with the arrow in the forward direction. The engineers have this all figured out and that is the reason the arrow is put on the tire.
If it could be mounted either way there will be no arrows on it.
pg
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From: texas
well this is why i asked so i could be schooled here rather than take the thing off,drive to the bike shop,and being schooled there and me left staring like an owl.
i wasnt trying to 2nd guees engineers but people do make mistakes and i honestly know pretty little about tires from start to finish.
last questions i think.
1.why is the tread pattern different on the back?---same pattern but opposite.if its good for the front then it should be good for the rear.
2.have they always been like this/are all mc tires like this?----i have never noticed tire patterns much before and for some reason this is GLARING at me.
i wasnt trying to 2nd guees engineers but people do make mistakes and i honestly know pretty little about tires from start to finish.
last questions i think.
1.why is the tread pattern different on the back?---same pattern but opposite.if its good for the front then it should be good for the rear.
2.have they always been like this/are all mc tires like this?----i have never noticed tire patterns much before and for some reason this is GLARING at me.
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From: texas
ok---i am sooooo glad i asked in here.i would rather be a fool in here than to be on in the real world.when i asked i pretty much KNEW i was right it was just a what the heck question and potential heads up for people.
ive found some info online and i cant say i completely agree but i also dont completely understand.....guess thats why i am not an engineer and not getting paid to think haha.
evidently its like this on some tires and not others.....it has to do with braking up front and acceleration from the rear.i had no clue what shepdog meant but i get it now.
im the guy that sees a new building and wonders when they put that up only to find out its been there for 5 years already. anyhoooo this is one of those things that i should have known but just didnt.i am glad that i asked.--thanks all.
ive found some info online and i cant say i completely agree but i also dont completely understand.....guess thats why i am not an engineer and not getting paid to think haha.
evidently its like this on some tires and not others.....it has to do with braking up front and acceleration from the rear.i had no clue what shepdog meant but i get it now.
im the guy that sees a new building and wonders when they put that up only to find out its been there for 5 years already. anyhoooo this is one of those things that i should have known but just didnt.i am glad that i asked.--thanks all.
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Stellar HDF Member
Joined: Feb 2006
Posts: 3,035
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From: Houston Texas
Your question made me go out with a camera and take a pic of mine.
The rear is a Dunlop and so is the front.
But my front has a completely different tread pattern.
Here is the rear showing the arrow.......
Here is the pic of the back of the tire.
I put red flow arrows on the pic to indicate where the water flows when it gets squished into that channel.
Water enters the sidewall area and flows to the tire center.
You have to mentally visualize the tire rotated 90° back from where it is so this area is on the pavement.
I am no engineer either so I cannot explain what happens, but trust the directional arrow.
pg
The rear is a Dunlop and so is the front.
But my front has a completely different tread pattern.
Here is the rear showing the arrow.......
Here is the pic of the back of the tire.
I put red flow arrows on the pic to indicate where the water flows when it gets squished into that channel.
Water enters the sidewall area and flows to the tire center.
You have to mentally visualize the tire rotated 90° back from where it is so this area is on the pavement.
I am no engineer either so I cannot explain what happens, but trust the directional arrow.
pg
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Seasoned HDF Member
Joined: Mar 2008
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From: texas
my front and rear is the same tread pattern that yours rear is but the arrow is just going in a different direction.hmmmmmmm interesting.i am satisfied though that i didnt get some sort of "misprinted" arrow on my tire.--------at the moment i dont fully understand it but i accept it.
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