The REAL tyre pressure numbersWatch this post
IMHO, the guidance on tire pressures is often inaccurate because it does not account for the total weight on the bike. With the prevailing science recommending lower tyre pressures the metric for setting them is the rider's body weight. I have recently opted to Gross Vehicle Weight GVW, by including the bike, helmet, water bottles, Wahoo, tools, etc that I actually ride with. All of that equipment, including the bike weighs 24 lbs.
I'm adding that to my body weight and using this gross total when referencing the many charts and recommendations for tire pressures. I've ridden 4 times with this updated calculation and it "feels" good. I don't know what the performance detriment is for under inflated tires. All the research these days is about avoiding over inflated tires and the watts, power loss therein.
If my logic is correct, I am under inflating my tyres if I don't account for the additional 24 lbs of "stuff". What do you folks think?
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