On Fri Jul 4 23:02:34 2025 Frank Krygowski wrote:
On 7/4/2025 1:47 PM, Mark J cleary wrote:
I have been riding my rim brake Habby the past month really. Putting
many miles with warm temps low wind. I notice the rear conti PG5000 was
looking quite flat profile in the middle to tire. I ride it at about
83-93 psi and it is a 25mm tire. Have had no flats with the tire but
looking at the dimple marks on the tread they were barely visible had to >>> really look good.
i decided with the profile flat and wear markers gone to replace it. i
wondered when most of you replace tire. I have heard a number of rider
say they go till the chords start showing or they start getting a lot
flats. To me one flat is too many so I changed it out.
I don't if it is just me but on todays ride I though the bike road
better. I assume that a rounded tire profile is better than the flat bit >>> in the middle?
I don't think I can get a 28 mm tire on the bike but not sure the 25 is
fine. Maybe I should investigate closer.
I think I generally ride until the first casing threads are barely
showing. I can't say I detect any difference in ride quality, but I'm
far from being a connoisseur of such things.
If I were leaving on a long trip, I'd replace a worn tire sooner than
that, before starting out. In fact, most of my long tours were started
on fresh tires.
I forget touring bike tires but racing/sports tires should really be
replaced when the wear markers are comlpetely gone. Beyond this traction is impaired.
cyclintom <[email protected]> wrote:
On Fri Jul 4 23:02:34 2025 Frank Krygowski wrote:
On 7/4/2025 1:47 PM, Mark J cleary wrote:
I have been riding my rim brake Habby the past month really. Putting
many miles with warm temps low wind. I notice the rear conti PG5000 was >>>> looking quite flat profile in the middle to tire. I ride it at about
83-93 psi and it is a 25mm tire. Have had no flats with the tire but
looking at the dimple marks on the tread they were barely visible had to >>>> really look good.
i decided with the profile flat and wear markers gone to replace it. i >>>> wondered when most of you replace tire. I have heard a number of rider >>>> say they go till the chords start showing or they start getting a lot
flats. To me one flat is too many so I changed it out.
I don't if it is just me but on todays ride I though the bike road
better. I assume that a rounded tire profile is better than the flat bit >>>> in the middle?
I don't think I can get a 28 mm tire on the bike but not sure the 25 is >>>> fine. Maybe I should investigate closer.
I think I generally ride until the first casing threads are barely
showing. I can't say I detect any difference in ride quality, but I'm
far from being a connoisseur of such things.
If I were leaving on a long trip, I'd replace a worn tire sooner than
that, before starting out. In fact, most of my long tours were started
on fresh tires.
I forget touring bike tires but racing/sports tires should really be
replaced when the wear markers are comlpetely gone. Beyond this traction is impaired.
Very much doubt traction is impaired, can feel the edge once a tyre has a >flat top, but considering how hard road tyres compounds are, soft summer >tyres are hard compound gravel tyres for example, and MTB particularly >trail/enduro/DH are another level all together.
Running a tyre down to the carcass is unwise for failure type of risks, but >in my experience get punctures before that, and a generally slashed up >surface.
Roger Merriman
On 6 Jul 2025 12:00:13 GMT, Roger Merriman <[email protected]> wrote:
cyclintom <[email protected]> wrote:
On Fri Jul 4 23:02:34 2025 Frank Krygowski wrote:
On 7/4/2025 1:47 PM, Mark J cleary wrote:
I have been riding my rim brake Habby the past month really. Putting >>>>> many miles with warm temps low wind. I notice the rear conti PG5000 was >>>>> looking quite flat profile in the middle to tire. I ride it at about >>>>> 83-93 psi and it is a 25mm tire. Have had no flats with the tire but >>>>> looking at the dimple marks on the tread they were barely visible had to >>>>> really look good.
i decided with the profile flat and wear markers gone to replace it. i >>>>> wondered when most of you replace tire. I have heard a number of rider >>>>> say they go till the chords start showing or they start getting a lot >>>>> flats. To me one flat is too many so I changed it out.
I don't if it is just me but on todays ride I though the bike road
better. I assume that a rounded tire profile is better than the flat bit >>>>> in the middle?
I don't think I can get a 28 mm tire on the bike but not sure the 25 is >>>>> fine. Maybe I should investigate closer.
I think I generally ride until the first casing threads are barely
showing. I can't say I detect any difference in ride quality, but I'm
far from being a connoisseur of such things.
If I were leaving on a long trip, I'd replace a worn tire sooner than
that, before starting out. In fact, most of my long tours were started >>>> on fresh tires.
I forget touring bike tires but racing/sports tires should really be
replaced when the wear markers are comlpetely gone. Beyond this traction is impaired.
Very much doubt traction is impaired, can feel the edge once a tyre has a
flat top, but considering how hard road tyres compounds are, soft summer
tyres are hard compound gravel tyres for example, and MTB particularly
trail/enduro/DH are another level all together.
Running a tyre down to the carcass is unwise for failure type of risks, but >> in my experience get punctures before that, and a generally slashed up
surface.
Roger Merriman
The Catrike wears tires down to a flat surface pretty quick. I ride
the green guards untill I get green strips seveal inches long.
--
C'est bon
Soloman
On 7/6/2025 8:00 AM, Roger Merriman wrote:
cyclintom <[email protected]> wrote:I can't remember ever having a casing failure of any kind. I remember
On Fri Jul 4 23:02:34 2025 Frank Krygowski wrote:
On 7/4/2025 1:47 PM, Mark J cleary wrote:
I have been riding my rim brake Habby the past month really. Putting >>>>> many miles with warm temps low wind. I notice the rear conti PG5000 was >>>>> looking quite flat profile in the middle to tire. I ride it at about >>>>> 83-93 psi and it is a 25mm tire. Have had no flats with the tire but >>>>> looking at the dimple marks on the tread they were barely visible had to >>>>> really look good.
i decided with the profile flat and wear markers gone to replace it. i >>>>> wondered when most of you replace tire. I have heard a number of rider >>>>> say they go till the chords start showing or they start getting a lot >>>>> flats. To me one flat is too many so I changed it out.
I don't if it is just me but on todays ride I though the bike road
better. I assume that a rounded tire profile is better than the flat bit >>>>> in the middle?
I don't think I can get a 28 mm tire on the bike but not sure the 25 is >>>>> fine. Maybe I should investigate closer.
I think I generally ride until the first casing threads are barely
showing. I can't say I detect any difference in ride quality, but I'm
far from being a connoisseur of such things.
If I were leaving on a long trip, I'd replace a worn tire sooner than
that, before starting out. In fact, most of my long tours were started >>>> on fresh tires.
I forget touring bike tires but racing/sports tires should really be
replaced when the wear markers are comlpetely gone. Beyond this traction is impaired.
Very much doubt traction is impaired, can feel the edge once a tyre has a
flat top, but considering how hard road tyres compounds are, soft summer
tyres are hard compound gravel tyres for example, and MTB particularly
trail/enduro/DH are another level all together.
Running a tyre down to the carcass is unwise for failure type of risks, but >> in my experience get punctures before that, and a generally slashed up
surface.
one early spring when a friend invited us on our first tandem ride of
the year. We made it about a mile before flatting the rear tire. I was embarrassed to see how badly that tire was worn.
I also don't remember traction problems when road riding, even with wet roads. I guess I corner fairly conservatively; I'd never duplicate
Jobst's famous cornering photo. <https://bikeretrogrouch.blogspot.com/2015/05/jobst-brandt.html>
But I'm not as fearful of gravel in turns as some of my riding mates.
On Sun Jul 6 12:00:13 2025 Roger Merriman wrote:
cyclintom <[email protected]> wrote:
On Fri Jul 4 23:02:34 2025 Frank Krygowski wrote:
On 7/4/2025 1:47 PM, Mark J cleary wrote:
I have been riding my rim brake Habby the past month really. Putting >>>>> many miles with warm temps low wind. I notice the rear conti PG5000 was >>>>> looking quite flat profile in the middle to tire. I ride it at about >>>>> 83-93 psi and it is a 25mm tire. Have had no flats with the tire but >>>>> looking at the dimple marks on the tread they were barely visible had to >>>>> really look good.
i decided with the profile flat and wear markers gone to replace it. i >>>>> wondered when most of you replace tire. I have heard a number of rider >>>>> say they go till the chords start showing or they start getting a lot >>>>> flats. To me one flat is too many so I changed it out.
I don't if it is just me but on todays ride I though the bike road
better. I assume that a rounded tire profile is better than the flat bit >>>>> in the middle?
I don't think I can get a 28 mm tire on the bike but not sure the 25 is >>>>> fine. Maybe I should investigate closer.
I think I generally ride until the first casing threads are barely
showing. I can't say I detect any difference in ride quality, but I'm
far from being a connoisseur of such things.
If I were leaving on a long trip, I'd replace a worn tire sooner than
that, before starting out. In fact, most of my long tours were started >>>> on fresh tires.
I forget touring bike tires but racing/sports tires should really be
replaced when the wear markers are comlpetely gone. Beyond this traction is impaired.
Very much doubt traction is impaired, can feel the edge once a tyre has a
flat top, but considering how hard road tyres compounds are, soft summer
tyres are hard compound gravel tyres for example, and MTB particularly
trail/enduro/DH are another level all together.
Running a tyre down to the carcass is unwise for failure type of risks, but >> in my experience get punctures before that, and a generally slashed up
surface.
When tires have the center section flattened out by wear it probably does effect traction. The tires have a reduced contact patch when cornering.
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