We cover the shiny new things, with in-depth interviews and detailed stories about how the bicycles and components work, plus reviews to see if they live up to the hype. For those unfamiliar, riding tubeless means that you don’t have tubes in your tires. The factors that influence the ideal tire pressure are: your weight, the bikes weight, tire size, weight distribution, and rider preferences. • How We Make Money We cover the shiny new things, with in-depth interviews and detailed stories about how the bicycles and components work, plus reviews to see if they live up to the hype. var smartFormsDesignMode=false; Glad you liked it. Would be interesting to see the underlying maths. This post is trying to help you calculate a good starting pressure for your Road/Tri bicycle tires. var smartDonationsSandbox=""; For me loaded, I have 55% of my weight on my back wheel.
We love learning the technology and celebrating innovation at every level -from crowdfunded start ups to major global brands- and sharing it all here with you! It recommended 32 psi on the rear for me. Well for my 250 lb body, I don’t get pinch flats with a rear tire more than 135 psi. For reference, roughly half of the people using the calculator were entering their ‘average speed’ as being higher than the average speed of a ProTour race! But what’s equally important to choosing the right tire for your needs is dialing in the right air pressure for them, especially on off-road terrain. Tyre pressure is a critical measurement for getting the most out of your mountain bike.
3 Bikerumor.com reaches close to one million passionate cyclists per month. Don’t forget to take in mind, that your floor pump might show not accurate figures. • Contact Us It’s since been updated with the correct link. And yes I am heavier than the average person and am trying to get into an exercise routine that includes frequent and progressively longer bike rides. We love learning the technology and celebrating innovation at every level -from crowdfunded start ups to major global brands- and sharing it all here with you!
3 Bikerumor.com is the world’s largest cycling tech blog. However, I lack the mathematical skills that it would take to get it done. You human? Read on, use the calculator, and then experiment. var smartDonationsRootPath=""; I’m not currently running Schwalbe tires, but this is very close to my preferred pressures. Anyway, I routinely exceed the listed maximum pressure and have not had any serious blowouts in the past, but to each his/her own. As indicated above it seems that higher pressures = more puncture flats. This is just a silly tool.
When calculated for Worn Pavement/Some Cracks and for the Fast Group Ride setting, it recommends pressures of 70psi for the rear, and 68psi for the front. I used a couple of online cycling calculators and found that the Gatorskins cost me ~0.4 mph in a perfect world (20/19.6 mph). Try it now. Maybe that once on gravel. Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window), Keeping the Faith – Part I… Too Many Calories, I have ridden for 40 years and never have gotten a pinch flat @ 95 psi…, You lose traction at anything over 120 psi…, You get more puncture flats at higher pressures…, They put the recommended tire pressure for you to ride with on the side of the tire….
I took a look at the graph and knew there should be a way to do that. Let’s say you’re a large 240 to 250 lb. Contact us to connect with them. I did not like their weight distribution chart, as it seemed random. window.smartFormsItemsToLoad=new Array(); Go Bigger – I finally got a pair of 25 mm tires for the first time, we will see how that goes. Supposedly the calculator pulls from 4,000 data points from 150 athletes over the course of 5 years at 90 different events. Mountain bike tire pressure is the ace in your back pocket. I tell them “125 front and 145 in the rear” … “ooh that’s too much” they say. It gave me 28 – 30. CONTEST! The article listed the average pressure and some changes to be made depending on ground conditions or the ability of the pilot. The following are the basic principles to consider when deciding the best pressure to run: There are people out there that can test and find the upper pressure limits and find the pressure that give the trade-offs just mentioned (e.g. I favor tires that are bullet proof. So if I take a GP5000 with butyl tube, GP5000 with latex and GP5000 tubeless tire and do a full optimization workup on them using field study, we will find that all of them yield the same optimal pressure result, but some of them are much faster due to reduced damping (hysteresis) as a result of tire construction. Typical mountain bike pressures range from 22psi (1.5 bar) to 35psi (2.4 bar), generally with more air in the rear than the front. • Ask A Stupid Question LOL at the ridiculously over estimated average speeds people were entering! which is a huge factor between brands/models. Get Bikerumor’s top stories delivered straight to your inbox every week! Silca Professional Pressure Calculator - LITE Version . On a 70.3 course the time difference is ~3 minutes, one flat costs more than that and is more super annoying. Total System Weight (Rider + Bike + Gear) lbs kg. That includes details like the surface condition from indoor wood tracks to Category 4 gravel, wheel diameter, average speed, and the bike’s weight distribution or type of bike. The best tire pressure to use is a subject of much debate.
My tires have taken this extra pressure for the last few years without incident. So I figured out a way to check at home with no extra stuff. The Alter of Rolling Resistance – It seems that many people are into buying the tire with the lowest rolling resistance. I like you read the article in Bicycle Quarterly and wondered how I could apply it to my bike. The Pressure Prof takes nine different factors into account when calculating its suggestions for ideal pressures. If I added wider tires, the pressures dropped a bit. It’s currently running 700c x 28mm GP5000 tires that actually measure 30mm on the Zipp Firecrest rims, and I’m guessing my total system weight is somewhere around 172lbs. Schwalbe has decided to make life easier for their MTB customers by creating the Pressure Prof, an online calculator that helps trail or DH riders figure out what pressures they should be running. eval(ez_write_tag([[300,250],'bikerumor_com-box-3','ezslot_2',101,'0','0']));Ever wonder what tire pressure you should be running? Measured Tire Width (Measuring Guide) Surface Condition (Learn More) Wheel Diameter.
Notify me of follow-up comments by email. Wish I’d thought of that…, I don’t see the calculator accounting for construction, sidewall TPI, etc. Here’s one example I punched in; At my actual weight of 66kg, riding a pair of 2.5” tires with enduro-strength sidewalls on 30mm rims, I set the rider level to Intermediate, riding style to Enduro, trail conditions as mixed, terrain as Rocky, and chose the tubeless system option. I’d say the Pressure Prof is certainly a valid system for helping you find tire pressures that will work well for your specific needs – The only question that remains is whether you find its exact suggestions perfectly ideal, or if it simply puts you in the ballpark… and that’s something each rider will determine for themselves. The most basic form is the LITE version which limits you to inputs for the total system weight (rider + bike + gear), and the measured tire width.eval(ez_write_tag([[580,400],'bikerumor_com-medrectangle-3','ezslot_1',103,'0','0'])); The more comprehensive Pro version is still free – but you’ll have to cough up your email.
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