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16 votes

What is the purpose of a tread pattern on city/road tyres?

Schwalbe has another page on this - https://schwalbetires.com/technology-faq/tread/#:~:text=On%20a%20normal%2C%20smooth%20road%2C%20the%20tread%20has,smaller%20and%20the%20contact%20pressure%20is%...
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15 votes

What is the purpose of a tread pattern on city/road tyres?

In my experience, smooth or treadless tyres are perfectly good in the dry, and on smooth/good roads. Smooth tyres are adequate on wet smooth roads. Wet AND oily roads, or wet AND gritty roads is where ...
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10 votes

Why is my old WTB All-Terrain tire sized as 30/32?

The 30/32 is WTB's old slightly gimmicky sizing system where the two numbers are tire casing width and tread width at widest point in millimeters. WTB is not using it any more, but it's still ...
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  • 19.4k
9 votes

Tire Size Road Bike

15 is the inside width of the rim in millimeters. The tire should be wider than that so that is stays on the rim. 19 to 28 mm in the second picture sounds like a realistic range of suitable tire ...
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  • 19.4k
7 votes

What is the purpose of a tread pattern on city/road tyres?

Few users of bicycles will be riding utterly exclusively on good tarmac. Crossing verges, cutting a corner across dirt, taking avoiding action off the tarmac, riding through a region where the tarmac ...
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5 votes
Accepted

Why tubeless tires without tubeless approval

Tubeless vs. Tubeless-Ready Tubeless is the older designation and in simple terms, represents tires that were air-tight in all aspects, including the sidewalls. This resulted in tires with stiffer, ...
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  • 1,587
5 votes

What is the purpose of a tread pattern on city/road tyres?

On tarmac/roads the tread has virtually no purpose. Two small uses it has are: The extra thickness of rubber provides more puncture protection Possibly a little extra grip in the tiny beads of gravel ...
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  • 14.5k
4 votes

What is the purpose of a tread pattern on city/road tyres?

Tyre tread won’t improve grip on hard surfaces, even when wet. On soft surfaces (like grass, mud or snow) the treads of city bike tyres are pretty much ineffective. You’d really need knobs with proper ...
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  • 19.7k
4 votes
Accepted

A tool for comparing outer diameters of different tyre sizes?

One of the gotchas with doing this without measuring specific tires is that the thickness of the tire at the ground contact is variable enough to screw things up, depending on the level of accuracy ...
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3 votes

Why is my old WTB All-Terrain tire sized as 30/32?

I believe 32 is the tire width, and is measured in millimiters (mm) not centimeters. On their website I see this model is described as 30TPI (threads per inch, describing the structure of the fabric ...
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  • 1,130
3 votes

What is the purpose of a tread pattern on city/road tyres?

EDIT: Upon further discussion with Andy P and referring to some manufacturer publications, I have found that the macroscopic tread pattern is likely insignificant regarding increasing grip. What ...
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  • 10.8k
3 votes

What is the purpose of a tread pattern on city/road tyres?

(Assuming that by tread you refer to a patterned tread; in some other contexts tread is the area of the tire that gets worn whether patterned or not.) They're there because most bicycle buyers are ...
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  • 12.4k
3 votes

What does 23/32c mean in 700x23/32c tubes

The item in your image is a tube, not a tire. Tubes go inside tires. That said, your intuition about the designation is correct. That tube is labeled as appropriate for tires as narrow as 23 mm and as ...
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  • 1,802
2 votes

Panaracer Gravelking SK Tubeless Blowout on WTB i21

I'm afraid there might be no good answer that is going to put your mind at ease and guide you what to do next, but i'll have a go based on the information we have available. From the information you ...
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  • 14.5k
2 votes

Tube size and tyre size mismatch

What does the tube’s packaging say? Usually they are specified to work for a relatively wide range of widths. It will says something like “18-622 to 25-622”. A few percent above the spec usually works ...
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  • 19.7k
1 vote

Would you ride with this tire with cuts in the sidewall?

Not hard workaround repair. Had similar with very long cut (whole side) on my loved Conti. 1st tried to glue from inside, but after some time or increasing pressure (often over 6 bar) tube went out ...
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  • 276
1 vote

Whatever happened to solid bike tubes?

Airless tyres are available at least from Tannus but they're not solid tubes. They're solid tyres. A tube is something that fits inside a clincher or tubular tyre. I can't imagine how fitting a solid ...
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  • 12.4k

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