Questions tagged [tire-pressure]
The tire-pressure tag has no usage guidance.
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Does low tire pressure affect safe, minimum tire clearance?
Will running a tire at the minimum recommended pressure increase the safe, minimum tire clearance? If I switch to the tire width I have in mind, I will have slightly more than 3mm of clearance. This ...
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What happens if a tubeless tyre is overinflated?
The gravelking SK has a max tubeless pressure of 60 psi.
What happens if you inflate it more, to say 100?
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Why are mountain bike tires rated for so much lower pressure than road bikes?
Road bikes with their sleek, thin and flimsy looking tires are designed to take extremely high pressures, going up to 130 PSI (900 kPa). Mountain bikes have much more solid looking, broader tires. And ...
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What should my rear and front tire pressures be if they have wildly different recommended pressure ranges?
I ride a gravel bike and decided to upgrade my rear tire to a new semi-slick one so I can be a bit faster (Innova Pro Stampede -> Maxxis Receptor). The problem is though that the Maxxis Receptor ...
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Why don't my studded tyres grip on ice?
For the first time in my life, I have had stud tyres installed on my bicycle, because I've nearly killed myself bicycling the last few winters, no matter how slowly and carefully I go. It seems like ...
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Anything wrong with 100 PSI in 700x32 tires on a road bike?
Independent of the manufacturer of my new road bike, I wanted to ask if I am overkilling the purpose or intent of 700x32 tires by using 100 PSI. The air volume is greater for 700x32, so I believe the ...
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Tire and tube keep popping off of the rim
It's the third time now that the tire just pops off my rim, and then the tube blows up as a result. This is all within the span of six months on a brand new bike assembled by a supposedly high-end ...
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Letting air out of tires in the rain: any chance of water getting in? (Presta valve, tubeless tires)
I grant this is probably a silly question, but one never knows...
I was out riding and rain arrived earlier than expected. I had inflated my tires before setting out to a pretty high pressure for my ...
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Should I inflate MTB tires to 50 PSI?
I'm 5'10" 95kgs. I use an MTB for city commute (I know I should've gone with a hybrid instead).
The tires recommend a max pressure of 50 PSI. I'm wondering if setting the rear tire at 50 PSI ...
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Vittoria Barzo / Mezcal Minimum pressure
Just mounted Mezcal (2.25) and Barzo (2.35) on a i29 rim, tubeless. Then I read the sign on both tyres that says Minimum pressure tubeless 2.00 bar. Ideally I would go for a 1.1 front 1.2 back but I’m ...
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Tyre pressure aero wheel
I don’t know what to do in this situation with my road bike. My aero wheel say max 103 psi on it but my tyre range say 115-145 psi. I weigh 180 lbs. Do I inflate them to 100 psi or 115?
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Does anybody has a chart or table of the rolling resistance vs tire pressure for a MTB tire?
I read lots of education around how the high pressure for a MTB tire is bad and how the low pressure is very good for the rolling resistance. I feel puzzled by these talks because they seem ...
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Are there other methods for measuring tire pressure besides a pressure gauge?
Slightly awkward question... A pressure gauge is good and useful, especially having a pump with a gauge, but some air escapes at each measurement, so I wonder if there are other methods that give ...
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Tyre Pressure for heavy rider - any concerns?
Currently weighing 125 kg, I got myself a BMC Alpenchallenge One to finally start exercising and lose weight. The bike is equipped with Continental Contact Speed tyres (700x35c). Maximum pressure is ...
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How to choose an tire pressure gauge online?
Bicycle shops of any grade in Japan don't carry tire pressure gauges- hardware shops tell you to look their mall bicycle shop. Tire pressure gauges on pumps don't exist. So I have pick one to buy on ...
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Air Compressors never have air pressure gauges here so what is the easiest way to achieve a certain tire pressure?
I just checked a high end bicycle shop and it doesn't have air pressure gauge on the air compressor outlet( or anywhere) and the local shop doesn't have one at the end of long outside one- it is ...
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Why do high pressure tires feel faster?
In the last decade, people have been saying that high pressure tires don’t actually make you faster. My takeaway from what Jan Heine says on Bicycles Quarterly: either there is suspension loss in the ...
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Does the safe pressure of tubeless tire change with a tube?
I have a brand new Goodyear Vector 700x28c Tubeless Complete tire and the max PSI written on the sidewall is 85 but the non-tubeless 28c version is 110 PSI. My question is can I pump my tubeless tire ...
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Consequences of having too low tyre pressure
I changed a 38-622 size tyre to a different brand 37-622 one. The original tyre stated a pressure range of 40-60 psi, while the new one states 50-85 psi. What are the consequences of going below the ...
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How easy is it to explode a tubeless tire whilst seating, and how do I avoid this?
I installed tubeless tires about two months ago, but the back tire had been leaking fluid and yesterday went completely flat. All the fluid inside has dried up and a lot of it had built up between the ...
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Tires not holding air at high pressure
I ride a Trek road bike with 25c tires. The recommended pressure on the tire is 100-130 psi. Before I ride I inflate the tires to close to the max pressure no problem and my pump works fine. But ...
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What is making my tire squeak without riding it?
I have a Skullbone (HBB) bike. I aired up my tires and now it’s making this squeaking noise when I turn the wheel right to left (not when riding it). I’ve never had this problem before. I aired the ...
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Does tire pressure affect rolling resistance on pavement?
It's a no brainer, right? Yet a comment links to a blog post claiming to have scientifically proven there is no significant effect. It looks solid but is not a paper in a peer-reviewed journal.
What ...
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Is there a way to measure tire pressure without using the valve?
I'm trying to DIY a sort of a "smart rack" for a bike that can alarm me of problems like low tire pressure. Problem is that tire pressure is measured via the valve, which isn't a practical ...
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Optimal front / rear weight ratio
What is your preferred weight ratio between front to rear wheels on your bike(s)? I always assumed 40% front / 60% rear was "normal". I have been experimenting with tire pressure and stem ...
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Why does front wheel keep more air pressure then rear wheel over time? [duplicate]
After pumping both the tires equally, after a few weeks pass, the rear tire of my bicycle keeps on getting flatter day by day, and looses pressure.
I have checked everything and there is no leakage ...
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Bike tires only inflate up to 30psi with foot pump
My bike has sat over the winter, and the tires went flat. I used my foot pump to inflate the tires (front and back) and both tires inflated to 30 psi. I have shraeder valves. The pump continued to ...
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Alwasy getting a flat rear tire on my 14"inch folding bike
I just bought my 14" folding bike and I always getting a flat tire on the rear. It happened 4 times in a span of three days. 1st flat was with the stock inner tube, 2nd flat is with the new inner ...
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Mountain bike tyres unreliably lose and keep pressure?
I have a old mountain bike (10 years old) and for most of it's life it's sat in the shed (being ridden lightly maybe once or twice a year), only recently have I tried riding it regularly for the first ...
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Tire pressure with latex tubes: higher, lower, the same?
I have just mounted a set of latex tubes to try it out - inside a set of s-work turbo cotton 26 mm on a regular roady.
You notice the difference immediately. The feel is just very different. In ...
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Proper tire pressure for my bike?
I wanted to ask about proper tire pressure specifically for the bike I got.
The model is Oryx Volt 26".
Tires specs are: 26" / 2.125".
I believe Toronto Police used such bikes.
Recommended pressure ...
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Pump/PSI issues
Good afternoon
I have recently bought/installed new inner tubes and tyres (26" x 1.95") for my bike as attached (https://www.vandorm.co.uk/collections/26/products/vandorm-26-schrader-valve-inner-tube ...
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How can I inflate a tire to the correct pressure?
I have a 700 x 38c tire with a Schrader valve I just did a puncture repair on. The recommended pressure for the tire is 75-100 psi (520-690 kPa). I would normally just inflate the tire until it ...
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Usefulness of high-pressure/high-volume switch on a track pump
Among the track pumps (floor pumps) on the market, I see one advertised with the following feature:
foot-activated high-pressure/high-volume switch
I'm interpreting this to mean that the pump has ...
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Is a powered car tire inflator suitable for road bike tire inflation?
I'm switching to road cycling. My diminutive and portable pump will likely be a pain to get 120psi. Rather than get a foot pump with either a built-in or an external pressure gauge, I'm thinking of ...
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Low tire pressure causing fall in corner?
I recently fell in a corner. My front wheel lost traction (slid out from underneath the bike, what they call a 'lowsider' in motorcycling iirc).
I was running quite low tire pressure (front wheel) to ...
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Can I avoid falling in the rain on a corner?
I was riding in the rain a few months ago and fell turning a 90° corner. Here are the details:
Riding on a road bike with new 25mm smooth tires inflated to 100 psi (Cannondale Synapse with ...
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Why are bicycle tires incapable of maintaining pressure over time, while car tyres seem to have less of a problem?
A typical car might have 2.5 bar tyre pressure, and use the Schrader valve system.
A typical mountain bike might also have approximately the same tyre pressure, perhaps a bit more, and also use the ...
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Tire over inflated and went flat? [duplicate]
I thought my tire pressure was low. I pumped air to the maximum resistance and after four hour there was hissing of air continuously while I was asleep and it woke me, how can I fix it?
It's a new ...
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Tire blowout on long descent
I was using mild braking on a very hot day, a couple miles down the hill the back tire blew out the sidewall on a Continental Ultra Sport 700x23C inflated to around 100psi.
The rim was quite hot to ...
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Araya 27 1 1/4 rim and tire, max pressure
I've just bought new tire (deli tires 145) for my old vintage ARAYA rim (27 1 1/4). Tire is the same size but I don't know which max pressure I can put in them, tire says min 73 PSI.
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New bike, tubeless tire will not inflate
I got a new road bike with tubeless tires. I can't get the back tire to hold air. I got the front tire inflated but for some reason, as I am pumping the air all I hear is it coming out somewhere from ...
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Is there a way to calculate the correct bicycle tire pressure?
I have 57-559 (57 mm width, 559 mm diameter) / 26"x2.125" tires.
I weigh about 95 kg / 210 lbs.
The tire's sidewall shows a single pressure value of 300 kPa / 43 psi.
However, this calculator shows ...
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My new bicycle skids laterally, especially in the wet; what can I do about it?
My new bicycle is a new regular road bicycle (not specialist) with puncture tough tyres. The bicycle is fine otherwise but a bit rough on all the crappy pedestrian path elements in Japan like kerbs. ...
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What is the average reduction in air pressure for a mountain bike tire?
I've noticed that my mountain bike tire looses air, not because of a leak, etc., but just naturally as time progresses.
Does anybody know the average psi loss over time for a mountain bike tire and ...
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Can I pump my MTB tire to max (55 psi / 380 kPa) without the tube inside bursting?
I have a e-mountain bike and I use to commute to uni every day. I have heard that higher tire pressures give you a bit more speed. My tires say I can pump to 55 psi (380 kPa) but I don't know if my ...
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My MTB tires say "Inflate to 50 PSI". Can I inflate them a little more for commuting?
I bought this MTB for commuting. Yup, I found out later that I should get a road bike instead. Too late. Not planning to use on rough terrain. Can I inflate the tires more than the manufacturer ...
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How to determine the minimum tire pressure if the manufacturer does not?
Some tires only have the maximum pressure written on them, stating nothing about the minimum. For soft and comfortable rides, the recommendation is to inflate them to lower pressures, but then how to ...
user39828
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Pressure range conflict between tire and rim
I just mounted a new Ardnet Race tire that has a side label pressure rating of 35 - 60 psi . The Stans Arch Ex rim that is mounted to says max pressure is 38 lbs, there is a little range on the ...
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Time trial carbon frame scratches. Should I concern?
While cleaning my time trial bike I've noticed many scratches in the frame. See pictures below.
My tire pressure is usually around 100 psi, depending on the weather conditions or circuit. My wheels ...
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