Bicycles Stack Exchange
Bicycles Stack Exchange

Questions tagged [tire]

The rubber attached to the rim of your wheel. Flats, changing tires, selecting tires, etc.

1334 questions
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5 answers

Should I change both tires when I need to change one?

I know that it's a best practice in a car to change all 4 tires if you change 1, although in practice, it's only done if 3 need to be changed. Does the same thing hold true of a bike?
PearsonArtPhoto
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What does the "c" in bicycle tire size mean?

For instance, in some cases I will see a particular bike tire listed as available in 700x25, 700x25c, 700c x 25, and 700 x 25mm. (Just picking out a number here, it could be 23, 25, 27, etc.) What, if any, is the difference between these? I would…
Michael
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What is the difference between folding bead and wire bead tires?

I'm shopping online for some new tires, and see that some models are sorted by folding and wire beads? What exactly does this mean, and do I need a special rim to support them?
Nik Reiman
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9 answers

How can I check tire pressure without a pressure gauge?

I would like to tell if my tires are correctly inflated, in this case road tires, but I do not have a pressure gauge. Is there a handy heuristic for checking the pressure? Could I do it, for example, by trying to squeeze the tire between two fingers…
Kirill
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28
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6 answers

Least worn tyre: front or back?

Where should I put the least worn tyre? on the front or the back? This is for XC MTB.
Mark W
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25
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5 answers

Is 13 years too old for an otherwise new-condition tire?

I was reading some product reviews for bike tires and came across a complaint from a customer who had received "new old stock" tires. Here's the relevant part of the review: Feb 07, 2020 The two tires I received had the manufacture date stamp…
StayOnTarget
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23
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1 answer

What does the label on a tire mean?

I went to a bike shop for new tires. I did not know which tires fit on my bike, so I just showed them my bike. When I took a look at the new tires, there was a label at the side, which says: 40-622 (700x38C-28x1 5/8 x 1 1/2) What do all these…
Uooo
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23
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5 answers

What to do with old tires?

I recently upgraded to puncture resistant tires on my road bike. The previous tires are old, but still usable. Is there any value to doing anything other than throwing them out? For instance, is there any reason to keep them? Is it possible to sell…
Joe
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21
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1 answer

Why would a tire be for trainer use *only*?

Yesterday I installed a Continental Hometrainer Tire on the rear of my CX bike (which had been purchased mostly for trainer use and which came with knobby tires unsuited for that purpose). To my surprise, the sidewall of the tire is marked "for…
Michael Stern
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21
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3 answers

Mixing different front and rear tires

My used bike came with different front and rear tires. It appears to have some kind of Kenda commuter tire in the front, and Continental Country Ride in the rear. They are both the same size (700x28). Is this perfectly acceptable or should a bike…
Soo Wei Tan
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21
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2 answers

how to choose inner tubes

I've always bought 700x28/38 Specialized inner tubes for my bike, because that was what I was told fitted. But what do those numbers mean? How do I know that a specific inner tube will fit my bike?
tenpn
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17
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4 answers

Do Kevlar Belts really offer puncture protection?

My local bicycle shop is offering "premium kevlar belt tyres" and are "extremely puncture proof" how much of this is true? Does this "kevlar belt" offer good puncture protection? What does this protect against? Shards of glass? Stones?
Jordan Doyle
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16
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3 answers

How to deflate a tire properly?

I need to flatten my bicycle tire. What is the safest and best way to do this? What I mean by safest is: I want to reinflate it again afterward.
null
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14
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2 answers

How do I translate this tire description into English?

On my tire is printed the following: 25-622 (28 x 1.00 - 700x25c) 6.8-8.0 Bar, 85-115 psi I think I know what some of this means but am not sure. BTW, this came standard on my 2012 Cannondale Synapse 600 Alloy bike.
Randy Minder
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14
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3 answers

How are tire sizes measured?

I tried getting a good measurement with my caliper, but the flexibility of the tire doesn't help much. Let's say I have a 26"x2.125" tire. I know this fits on an ISO 559mm bead seat diameter rim, and 26" = 660.4mm. 26": The OD of the tire including…
Ehryk
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