# bike tire pressure calculator

Ideal tire pressure is subject to many variables such as road surface, weather conditions, bike materials and setup, rider's weight and lastly, riding style. Philip, 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. The narrower the wheel, the more ‘pear shaped’ the tyre will become under pressure.

Time to drop some pressure for the next ride! Just remember “Dave Adams” when you use it. Here’s a clean XLS file you can download for your own use: https://www.biketinker.com/wp-content/uploads/2011/04/Tire-Pressure-salvaged-doc.xlsx, All this is very good, and I for one appreciate the think time that went into the original work as well as the commentary that followed. Huge Silca fan , had my pump for 38 years! Thanks, Dave! Studies have shown that, even on gravel tracks, lower air pressure is associated with reduced rolling resistance. Bikerumor.com is the world’s largest cycling tech blog. 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([[300,250],'bikerumor_com-medrectangle-3','ezslot_2',103,'0','0'])); The more comprehensive Pro version is still free – but you’ll have to cough up your email.

Seems to me if I use the recommended pressuers (20% loweer than I run I will be squirming my way right into a pinch flat. However, the air pressure cannot be lowered indefinitely, since this will have a negative effect on many factors, including the stability of the tyres on the rims. To work out the correct air pressure for your mountain bike tyres, use the following approach: On level tarmacked surfaces the following rule applies: Higher tyre pressure means lower rolling resistance. Since there’s no single pressure that will work for every rider, Silca has taken that pressure knowledge and packaged it into an online tire pressure calculator that you can use, for free. The choice of bike models, tyre sizes and inner tubes is as varied as the sport itself. Hi Barteos, Of course, in many of these optimizations, we are optimizing down with a 1-2 psi range most of the time, so it is possible that there is a <1psi delta due to casing, but it hides in the data both from a data set size and test resolution point of view. i.e. That’s lower than I have been riding them, but not by much – I typically pump up to 75/74psi before each ride. People are just terrible. This set up allows the pressure of the outer tyre to be lowered even more, meaning a massive increase in grip.

Modelling equations to data is a risky business, great fun but can be very misleading.

Paniagua – Think of tire pressure as the spring rate in a suspension system and the tire construction as being the damping.. To work out the correct air pressure for your mountain bike tyres, use the following approach: Get the average value for your tyre size by our bike tyre pressure calculator; Use the tips on this page to make adjustments to this … Because of the high volume of the tyres, you can get away with much lower air pressure, without risking pinch flats or instability.