![]() ![]() The motorcycle manufacturer has determined this from the beginning of their production and distribution to the market. You need to remember that the motorcycles load capacity will be supported by the amount of air present inside the wheel. Let us know what the computer spits out in the comments below (or on Facebook). In this case, using the motorcycle tire psi calculator is the most accurate and appropriate. Note that this usually means your tire pressure will be too high, particularly if the truck is not carrying a load. It will suffice until you have time to make a more accurate calculation. The good news is that we have the entire off season to get some ride time on them and get comfortable with them. Find the maximum pressure as shown on your sidewall and let that be your street pressure. And they are definitely less than we have ridden previously. It works great for Presta and Shrader valves and is just as good as the newer, more expensive D2X version. Now our one big note here is that we have yet to take the recommended tire pressures for a spin. It shouldn’t be a huge surprise that road surface has a huge impact on rolling resistance – but the science is still fascinating.Īnd when you have the form all filled out you will get something like this: Regarding road surfaces – we also recommend you take a moment to read. The image below (which we hope they don’t mind we borrow) shows just how much of an impact rim width can have on the tire itself. Silca has a great blog post on tire width and the impacts of printed width versus actual ( ) and the impact of different sized rims. Second is the actual measured tire width of the tire. We also recommend using the weight you expect to be on the bike (don’t use the weight you tell your spouse after you remove five pounds because you had a heavy lunch). Either weigh yourself and the bike separately and add them together. Yes that means even you weight weenies who think they have the lightest bike around. First off the weight is you AND your bike (including all the accessories and nutrition you plan on putting on it). Next come more specifics about your setup and race day conditions.Ī couple of notes on this. Fill in your name, email address, and rider type (because everyone needs an email list). From this data, the team at Silca has developed a tire pressure algorithm which fits more than 4000 optimal pressure data points from more than 100 athletes on more than 90 ProTour, Triathlon, CX and Gravel races worldwide. Silca has spent the past few years amassing what is considered by most to be the largest collection of data in the world of tire size, pressure, rider weight, and course. The Silca Professional Pressure Calculator ![]() Silca’s new Professional Pressure Calculator has turned black magic into science. But until now it’s still been a bit of black magic to us common age groupers – it was up to us to figure out which was the proper pressure for any given race day. ![]() Silca – and specifically their owner Josh Poertner has been preaching the benefits of proper tire pressure since he was leading engineering teams at Zipp. But that is not only wrong – but hugely detrimental to your race time. Typically most athletes pump to the same pressure they ride every other day and off they go. Tire pressure is definitely one of the most overlooked aspects of race day setup. ![]()
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