|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
New tires arrive! Lots of questions exist.
Which way to mount them? It seems obvious. The center of the tread has
a sort of airplane pattern and I guess the airplane should point forward. These are the tires (perfect max): http://www.vredestein.com/Fietsbande...etsSoo rtID=2 Sheldon Brown says that tread doesn't matter at all and should be slick but that unsophisticated buyers think that they would be slippery and won't buy them. I'm not sure about the unsophisticated; unenlightened (like me) would be a better way to put it. Until now, that is. I suspect that a better check than the airplane design would be that the channels push water out. Let's see, tire is rolling forward, at the contact point you want water pushed out to the side. Ok, if I mount them so the airplane is pointing forward at the top, then it points backwards at the contact point and the water is being pushed forwards. Bad. Ok, looks like the reverse it true. Airplane points back at the top and forward at the contact point? Ok, do I rotate these tires every month or two, front to back? The rear one wears out faster so that should keep them in sync. Bike NY is Sunday. That will be the first real test of these tires if I make the change today or tomorrow. But I won't have much of a chance to try them out before then. Oh well, plenty of SAG vehicles if they screw up somehow or I screw up mounting them. |
Ads |
#2
|
|||
|
|||
On Fri, 29 Apr 2005 09:25:40 -0400, dgk
wrote: Which way to mount them? It seems obvious. The center of the tread has a sort of airplane pattern and I guess the airplane should point forward. These are the tires (perfect max): http://www.vredestein.com/Fietsbande...etsSoo rtID=2 Sheldon Brown says that tread doesn't matter at all and should be slick but that unsophisticated buyers think that they would be slippery and won't buy them. I'm not sure about the unsophisticated; unenlightened (like me) would be a better way to put it. Until now, that is. I suspect that a better check than the airplane design would be that the channels push water out. Let's see, tire is rolling forward, at the contact point you want water pushed out to the side. Ok, if I mount them so the airplane is pointing forward at the top, then it points backwards at the contact point and the water is being pushed forwards. Bad. Ok, looks like the reverse it true. Airplane points back at the top and forward at the contact point? Ok, do I rotate these tires every month or two, front to back? The rear one wears out faster so that should keep them in sync. Bike NY is Sunday. That will be the first real test of these tires if I make the change today or tomorrow. But I won't have much of a chance to try them out before then. Oh well, plenty of SAG vehicles if they screw up somehow or I screw up mounting them. CORRECTION! I found the rotation arrow on the tire. I didn't see it the first time because the reflective strip makes everything pretty hard to read. |
#3
|
|||
|
|||
"dgk" wrote in message ... Ok, do I rotate these tires every month or two, front to back? The rear one wears out faster so that should keep them in sync. That's a lot of work, and the most likely blowout is one caused by an error while mounting the tire. Why increase that risk? You want the good rubber on the front anyway, since a blowout in front is a lot more likely to make you crash. Let the rear tire wear out, then move the still-good front to the rear and put a new tire on the front. RichC |
#4
|
|||
|
|||
"Rich Clark" wrote in message ... "dgk" wrote in message ... Ok, do I rotate these tires every month or two, front to back? The rear one wears out faster so that should keep them in sync. Sheldon Brown has an excellent article on tire "rotation": http://www.sheldonbrown.com/tire-rotation.html |
#5
|
|||
|
|||
"dgk" wrote in message
... Which way to mount them? It seems obvious. The center of the tread has a sort of airplane pattern and I guess the airplane should point forward. These are the tires (perfect max): http://www.vredestein.com/Fietsbande...etsSoo rtID=2 Sheldon Brown says that tread doesn't matter at all and should be slick but that unsophisticated buyers think that they would be slippery and won't buy them. I'm not sure about the unsophisticated; unenlightened (like me) would be a better way to put it. Until now, that is. I suspect that a better check than the airplane design would be that the channels push water out. Let's see, tire is rolling forward, at the contact point you want water pushed out to the side. Ok, if I mount them so the airplane is pointing forward at the top, then it points backwards at the contact point and the water is being pushed forwards. Bad. Ok, looks like the reverse it true. Airplane points back at the top and forward at the contact point? In an airplane-shaped (or V-shaped) tire thread, you would want the center of the V to touch the ground first so the remainder of the V can fan away water. If you mount it so that the outside tips of the V touch the ground first, then the two blades on the V will actually pull water towards the center of the tire and cause lift (hydroplaning). But realistically, unless you're going really fast and riding through a long stream of water, IT REALLY WON'T MATTER MUCH. I suppose that the tip of the V facing forward at the top of the tire may have a tiny little impact on airflow around the tire. If tip of the V points backwards, then it acts a bit more like a scoop or parachute, pulling air towards the middle instead of whisking it away. But again, this is really insignificant. Good luck on the NY ride. I gotta try that sometime! X_HOBBES |
#6
|
|||
|
|||
On Fri, 29 Apr 2005 20:03:15 -0400, "X_HOBBES"
wrote: "dgk" wrote in message .. . Which way to mount them? It seems obvious. The center of the tread has a sort of airplane pattern and I guess the airplane should point forward. These are the tires (perfect max): http://www.vredestein.com/Fietsbande...etsSoo rtID=2 Sheldon Brown says that tread doesn't matter at all and should be slick but that unsophisticated buyers think that they would be slippery and won't buy them. I'm not sure about the unsophisticated; unenlightened (like me) would be a better way to put it. Until now, that is. I suspect that a better check than the airplane design would be that the channels push water out. Let's see, tire is rolling forward, at the contact point you want water pushed out to the side. Ok, if I mount them so the airplane is pointing forward at the top, then it points backwards at the contact point and the water is being pushed forwards. Bad. Ok, looks like the reverse it true. Airplane points back at the top and forward at the contact point? In an airplane-shaped (or V-shaped) tire thread, you would want the center of the V to touch the ground first so the remainder of the V can fan away water. If you mount it so that the outside tips of the V touch the ground first, then the two blades on the V will actually pull water towards the center of the tire and cause lift (hydroplaning). But realistically, unless you're going really fast and riding through a long stream of water, IT REALLY WON'T MATTER MUCH. I suppose that the tip of the V facing forward at the top of the tire may have a tiny little impact on airflow around the tire. If tip of the V points backwards, then it acts a bit more like a scoop or parachute, pulling air towards the middle instead of whisking it away. But again, this is really insignificant. Good luck on the NY ride. I gotta try that sometime! X_HOBBES Thanks, I've done BikeNY for maybe the last five years. Very much fun. Well, I've mounted the new tires and new tubes. Those are VERY tight tires. It's good that they claim to be just about puncture proof because they are no fun to change. I'll ride around a bit tomorrow just to make sure that there are no leaks and them I'm set for Sunday. |
#7
|
|||
|
|||
X_HOBBES wrote:
In an airplane-shaped (or V-shaped) tire thread, you would want the center of the V to touch the ground first so the remainder of the V can fan away water. If you mount it so that the outside tips of the V touch the ground first, then the two blades on the V will actually pull water towards the center of the tire and cause lift (hydroplaning). But realistically, unless you're going really fast and riding through a long stream of water, IT REALLY WON'T MATTER MUCH. It won't matter at all, bike tires don't hydroplane. |
#8
|
|||
|
|||
"Peter Cole" wrote in message ... X_HOBBES wrote: In an airplane-shaped (or V-shaped) tire thread, you would want the center of the V to touch the ground first so the remainder of the V can fan away water. If you mount it so that the outside tips of the V touch the ground first, then the two blades on the V will actually pull water towards the center of the tire and cause lift (hydroplaning). But realistically, unless you're going really fast and riding through a long stream of water, IT REALLY WON'T MATTER MUCH. It won't matter at all, bike tires don't hydroplane. Agree, he ought to read the Bicycle FAQ, hosted by Sheldon Brown: http://www.sheldonbrown.com/brandt/slicks.html |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Wide Mt. Bike Tires vs. Thin Tires | [email protected] | Mountain Biking | 17 | April 12th 05 06:13 AM |
Rec.Bicycles Frequently Asked Questions Posting Part 1/5 | Mike Iglesias | General | 4 | October 29th 04 07:11 AM |
WIDE 27" road/touring tires? | Pizza Man | Techniques | 12 | October 1st 04 07:04 PM |
Couple questions about bike tires | Dan Musicant | General | 19 | July 24th 03 09:56 PM |
Couple questions about bike tires | Dan Musicant | General | 3 | July 18th 03 08:18 PM |