> While installing the Road Attack tires I just purchased, we came
> across a question of which way is the correct rotation. The front tire
> has the arrow on the sidewall with "front" inside the arrow. Does
> "front" refer to the rotation or the actual front of the bike? Because
> of the inverted writing, if the tire is mounted with the text
> readable, the arrow would be pointed either against the rotation or
> towards the rear of the bike. I mounted it as the rotation, but
> noticed that it causes the tread pattern of the front to be opposite
> of the rear. Which is correct?

>
> There are probably some deep physics involved here which are beyond me,
> to do with pressures and directions and fluids, but in practice any
> arrow when viewed from the left side of the tire, ...

> While installing the Road Attack tires I just purchased, we came
> across a question of which way is the correct rotation. The front tire
> has the arrow on the sidewall with "front" inside the arrow. Does
> "front" refer to the rotation or the actual front of the bike? Because
> of the inverted writing, if the tire is mounted with the text
> readable, the arrow would be pointed either against the rotation or
> towards the rear of the bike. I mounted it as the rotation, but
> noticed that it causes the tread pattern of the front to be opposite
> of the rear. Which is correct?

>paul c wrote:
>...

>>
>> There are probably some deep physics involved here which are beyond me,
>> to do with pressures and directions and fluids, but in practice any
>> arrow when viewed from the left side of the tire, ...

>
>
>Oops,sorry, left or right doesn't matter.

> On Sun, 11 May 2008 01:25:56 GMT, paul c wrote:
>

>> paul c wrote:
>> ...

>>> There are probably some deep physics involved here which are beyond me,
>>> to do with pressures and directions and fluids, but in practice any
>>> arrow when viewed from the left side of the tire, ...

>>
>> Oops,sorry, left or right doesn't matter.

>
>
> The funny thing is, Continental inverts all of the writing on the Road
> Attack so that it is read from the tread side of the tire, not the rim
> side, like normal tires. That allows you to see the cool race flag
> pattern, but is the cause of the confusion. On a normal tire, you
> would read across the top of the tire, where the writing is right side
> up. If that were the case, the arrow and writing would be OK. On the
> Road Attack, you read across the bottom, where the "front" text inside
> the arrow is right side up, but the arrow would point forward, against ...

> Okay. Just to keep everybody on their toes.
>
> The top of the tire travels forward down the road at twice the speed of the
> bike. This is the direction the tire must rotate to cause the bike to have
> forward motion.
> The portion of the tire in contact with the road is stationarary at all
> times. Except while sliding, then it too travels in the same direction as
> the top of tire, and the bike.
>
> Think: The arrow must somehow get in front of the bike (axle on the
> wheel). The arrow must accellerate from zero two twice the bike speed and
> back to zero repeatedly for there to be any forward motion.
>
> Since the top of the tire must travel so fast, the tread pattern should not
> be such that it would cause turbulence by 'pumping' air in advance of the
> bike. The tread on the bottom just sits there and has a cool nmemonic. The
> contact patch. (the wide part and the end of the pleasure trail)
>
> :-) ...

> Erronous Monk wrote:

>> Okay. Just to keep everybody on their toes.
>>
>> The top of the tire travels forward down the road at twice the speed of

>> bike. This is the direction the tire must rotate to cause the bike to

>> forward motion.
>> The portion of the tire in contact with the road is stationarary at all
>> times. Except while sliding, then it too travels in the same direction

>> the top of tire, and the bike.
>>
>> Think: The arrow must somehow get in front of the bike (axle on the
>> wheel). The arrow must accellerate from zero two twice the bike speed

>> back to zero repeatedly for there to be any forward motion.
>> ...

>Okay. Just to keep everybody on their toes.
>
>The top of the tire travels forward down the road at twice the speed of the
>bike. This is the direction the tire must rotate to cause the bike to have...