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Conti force/attack question

Old 07-09-05, 01:56 PM
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Conti force/attack question

I recently purchased a beautiful used custom Orbea dura ace road bike that has the attack/force tires. I noticed the rear tire is mounted with the rotation arrow pointing the wrong way! My guess is this incorrect installation has about 1500 miles on. Should I remount the tire correctly? What is the downside of leaving as is? The bike seems responsive in all aspects especially cornering but it is also an extreme upgrade for me. Is there a safety issue? Has any damage occured? Can I please get advice for the future of this tire?
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Old 07-09-05, 02:08 PM
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If it was my bike, I'd turn it around. I question, however, how much difference the direction of rotation can make on a road bike tire.
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Old 07-09-05, 02:17 PM
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Coriolus effect, maybe..?

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Old 07-09-05, 03:39 PM
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FYI in case its needed. The tires are sold as a set. The "attack" tire is 22c and is mounted in the front and designed for cornering and wind resistance. It has a specific rotation direction also. The "force" tire is 23c and designed for traction. I assume there is a reason for a "correct" direction - I just don't know what reason it could be and what I'm missing or possibly degrading by having the tire spinning the wrong direction designwise over a long time. Any ideas?
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Old 07-09-05, 07:37 PM
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Originally Posted by Steve J.
FYI in case its needed. The tires are sold as a set. The "attack" tire is 22c and is mounted in the front and designed for cornering and wind resistance. It has a specific rotation direction also. The "force" tire is 23c and designed for traction. I assume there is a reason for a "correct" direction - I just don't know what reason it could be and what I'm missing or possibly degrading by having the tire spinning the wrong direction designwise over a long time. Any ideas?
Mine are 23 in back and 20 in front. I use them on my time trial wheels only, don't like the way they feel on the road.
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Old 07-10-05, 04:08 PM
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Originally Posted by Steve J.
FYI in case its needed. The tires are sold as a set. The "attack" tire is 22c and is mounted in the front and designed for cornering and wind resistance. It has a specific rotation direction also. The "force" tire is 23c and designed for traction. I assume there is a reason for a "correct" direction - I just don't know what reason it could be and what I'm missing or possibly degrading by having the tire spinning the wrong direction designwise over a long time. Any ideas?
Just remember, acceleration and braking both require traction, just in different directions.

I can understand rotational guidelines on MTB tires but for roadies, I dunno.
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Old 07-10-05, 04:11 PM
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Your wheel will spin backwards if you install the tire the wrong way. Duh.
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Old 07-10-05, 04:57 PM
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Just pedal backwards for a few hundred miles, it'll all work out.....
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Old 07-10-05, 06:39 PM
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See, this is the kind of info I look to Bike Forum for!

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Old 07-10-05, 07:13 PM
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The tread is designed to handle best and last the longest rotating in the proper direction. There aren't any safety issues. Chunks of tread aren't going to fly off like an over-heated retread if it's mounted backwards. I used to think that it was overkill to make a bicycle tire unidirectional, but at speeds over 20mph, it probably does make a difference. I've even heard of a slick that was unidirectional. What's up with that?

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