General Discussion Triathlon Talk » Gp 4000s Tire direction Rss Feed  
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2013-06-06 2:03 PM

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Subject: Gp 4000s Tire direction
So i just noticed that there actually is a Arrow Direction on this. My question is.. since its a road bike tire and not a mountain bike tire.. does it really matter what way you put it on? what would be drag difference? I just put it on backwards and honestly i don't want to change it again its a pain in the arse.


2013-06-06 2:22 PM
in reply to: dkahns51

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Subject: RE: Gp 4000s Tire direction
I'll go home and tell you. Whichever way mine are pointing is the fastest, because I'm riding my fastest ever right now, and it's definitely the tires.
2013-06-06 2:22 PM
in reply to: 0

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Subject: RE: Gp 4000s Tire direction
I've read in several places that it doesn't matter. I actually mounted my hubby's tires wrong, now he blames me (jokingly) for bad bike splits, so I might fix them :-). Here is a review from competitive cycling stating it doesn't matter. Some folks say the instructions state this too, but I haven't looked. http://www.competitivecyclist.com/review-tires/continental-grand-pr...

Edited by CptSnoopy 2013-06-06 2:29 PM
2013-06-06 2:24 PM
in reply to: dkahns51

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Subject: RE: Gp 4000s Tire direction
There's an arrow? Crap.
2013-06-06 2:28 PM
in reply to: CptSnoopy

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Subject: RE: Gp 4000s Tire direction
Direction tires sometimes have tread pattern to help filter water away for better traction (from my motorcycle background). I don't really see a tread difference on my GP4000s, but having said that I made sure to install mine with the arrow in the rotation direction
2013-06-06 2:53 PM
in reply to: dkahns51

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Subject: RE: Gp 4000s Tire direction
For the GP4000S I don't think it matters. If you simply look at the tread there isn't much there that would impact direction. It's for the most part a smooth tire.

However, if you look at something like the Vittoria Open Corsa EVO CX tires...you probably want to mount thos on the right way because of the very distinct tread pattern.


2013-06-06 2:55 PM
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Subject: RE: Gp 4000s Tire direction
Yes the arrow is located clockwise of the Grand prix logo about 6 inches, its embroidered into the wheel.. barley visible.

" Also on the sidewall is a directional arrow. Our assumption was that the arrow, when at the top of the tire, should point forward. We asked for confirmation, and found we were right, to a point. It can also read properly if it's pointing forward at the bottom of the tire. The arrow is there for the people who want such things; the tread is not directional."

sounds like it is just for OCD people

Edited by dkahns51 2013-06-06 2:57 PM
2013-06-06 3:09 PM
in reply to: dkahns51

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Subject: RE: Gp 4000s Tire direction
On my last set that I mounted I had the front going the wrong direction. Had it in to the local tri bike store for a pre HiM tune up and they switched it around.....I have not yet asked them why but will the next time I'm in. My assumption is that if they took the time and expense to include it in the mold that it must somehow matter.
2013-06-06 3:17 PM
in reply to: dkahns51

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Subject: RE: Gp 4000s Tire direction

sounds like it is just for OCD people


Like me....as I also put the first one on backwards, noticed the arrow, and then changed it. The mere thought of racing on tires with an arrow pointing backwards was a non-starter. That's some bad joojoo right there.
2013-06-06 3:56 PM
in reply to: dkahns51

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Subject: RE: Gp 4000s Tire direction

GP4000's are bi-directional.  it doesn't matter.

however- when you are mounting a tire, the label of the tire must always reside where the valve stem is.

always.

2013-06-06 4:13 PM
in reply to: morey000

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Subject: RE: Gp 4000s Tire direction
Originally posted by morey000

Gwhen you are mounting a tire, the label of the tire must always reside where the valve stem is.

always.

 

This explains my poor bike splits.



2013-06-06 4:14 PM
in reply to: dkahns51

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Subject: RE: Gp 4000s Tire direction
BWHAHAAH That's a great time to start this thread.

My tire exploded the other day. Took out the bead. Brand new, first time on the road and only twice on the rollers. Riggin' friggin'...

Knew it was the rim tape so I took it to the LBS. Got rim tape (plastic stuff) changed out to the Velox rim tape. Got a new 4000s to replace the blown up one.

After it was back together, while we were chatting, I said, "y'know those things are directional. Got 'em lined up right?"

He didn't even know. The ONLY reason I knew is I had mine on the wrong way for about the first two/three tires I used years ago.

We look at it. Both of 'em are on wrong. Oops

2013-06-06 4:22 PM
in reply to: DanielG

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Subject: RE: Gp 4000s Tire direction
I'm waiting for someone to admit they actually took the front tire off and changed it instead of just removing the skewer and flipping it around. Laughing
2013-06-06 4:22 PM
in reply to: morey000

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Subject: RE: Gp 4000s Tire direction
Imagine the money, time and engineering that goes into these tires. To suggest that the arrows are for people with OCD, or that "it doesn't matter" which direction they're mounted is a lazy way to think. I'm pretty sure the engineers over at Conti have a pretty darn good reason for putting that arrow on the tire; be it speed, safety, or whatever. Re-mount that tire and stop being lazy.
2013-06-06 4:23 PM
in reply to: GAUG3

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Subject: RE: Gp 4000s Tire direction
Originally posted by GAUG3

There's an arrow? Crap.

x2. And they were tough to mount on carbon rims, so if it's the rear wheel that's the way it stays.
2013-06-06 4:35 PM
in reply to: Left Brain

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Subject: RE: Gp 4000s Tire direction
Originally posted by Left Brain

I'm waiting for someone to admit they actually took the front tire off and changed it instead of just removing the skewer and flipping it around. Laughing

What, and then have the arrow on my carbon rims also pointing backwards?!?


2013-06-06 4:52 PM
in reply to: morey000

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Subject: RE: Gp 4000s Tire direction
Originally posted by morey000

GP4000's are bi-directional.  it doesn't matter.

however- when you are mounting a tire, the label of the tire must always reside where the valve stem is.

always.


Why?
2013-06-06 4:57 PM
in reply to: Left Brain

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Subject: RE: Gp 4000s Tire direction
Originally posted by Left Brain

I'm waiting for someone to admit they actually took the front tire off and changed it instead of just removing the skewer and flipping it around. Laughing


I have and the bike store did. -eh- if that's the silliest thing I ever do, I'm good.

2013-06-06 4:58 PM
in reply to: Drago

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Subject: RE: Gp 4000s Tire direction
Originally posted by Drago

Originally posted by morey000

GP4000's are bi-directional.  it doesn't matter.

however- when you are mounting a tire, the label of the tire must always reside where the valve stem is.

always.


Why?


Think about his post with full on OCD.

2013-06-06 5:12 PM
in reply to: Drago

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Subject: RE: Gp 4000s Tire direction
Originally posted by Drago

Originally posted by morey000

GP4000's are bi-directional.  it doesn't matter.

however- when you are mounting a tire, the label of the tire must always reside where the valve stem is.

always.


Why?

i think it's one of the rules.

but in reality, it's to help you find the valve stem on the tire quickly (just look for the label).
2013-06-06 5:14 PM
in reply to: Bunsbert Montcroff

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Subject: RE: Gp 4000s Tire direction
Originally posted by Bunsbert Montcroff

Originally posted by Drago

Originally posted by morey000

GP4000's are bi-directional.  it doesn't matter.

however- when you are mounting a tire, the label of the tire must always reside where the valve stem is.

always.


Why?

i think it's one of the rules.

but in reality, it's to help you find the valve stem on the tire quickly (just look for the label).

http://www.velominati.com/the-rules/#40


2013-06-07 7:53 AM
in reply to: Clempson

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Subject: RE: Gp 4000s Tire direction
You can mount them either direction. I'm not sure the newer models even have the arrow - unless I completely missed it on the new set I just mounted. Either way, it really doesn't matter.
2013-06-07 7:58 AM
in reply to: Left Brain

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Subject: RE: Gp 4000s Tire direction
Originally posted by Left Brain

I'm waiting for someone to admit they actually took the front tire off and changed it instead of just removing the skewer and flipping it around. Laughing


Well, I had to check. As I approached my front wheel, I knew that it would be an easy fix if it was installed "wrong". Dang... it was. Just flipped it around. Easy fix.

Now, looking at the back wheel. Please be "correct"...please, please, please. Flipping the wheel around would mean I would have to buy a left handed bike with the drivetrain on the left. THANK YOU, Lord Armstrong!! It was on correctly!!! Looking forward to the free speed!
2013-06-07 11:44 AM
in reply to: zeusrock1

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Subject: RE: Gp 4000s Tire direction
Originally posted by zeusrock1

Direction tires sometimes have tread pattern to help filter water away for better traction (from my motorcycle background). I don't really see a tread difference on my GP4000s, but having said that I made sure to install mine with the arrow in the rotation direction


Bicycle tires are too narrow for aquaplaning to have any real effect. Moreover, the 'sipes' in road bike tires are too shallow to effectively evacuate water, and too shallow for 'knob flex' to be much of an issue.

All in all, it's purely aesthetics. If you want a real lesson on it, Google Jobst Brandt - he's a curmudgeonly engineer with some epic anti-tread rants to his name on the old rec.bicyles.tech newsgroup.

SYJ
2013-06-07 12:08 PM
in reply to: Drago

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Subject: RE: Gp 4000s Tire direction
When you flat it helps you out a lot to narrow down where to look on the tire for the sometimes-difficult-to-find cause of the puncture. This is more applicable on long rides when you have limited repair supplies with you and can't/don't want to ruin multiple tubes, but it's an easy time-saver so you might as well do it all the time.

Originally posted by Drago

Originally posted by morey000

GP4000's are bi-directional.  it doesn't matter.

however- when you are mounting a tire, the label of the tire must always reside where the valve stem is.

always.


Why?
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