Of all our research on tires, the most revolutionary finding is this: Tire pressure has almost no effect on a tire’s speed. As seen on : BPA Free” is appearing on a growing number of plastic food containers, food service items, and canned food packaging (nearly all canned foods contain a plastic lining made from BPA), hoping to lull shoppers into a sense of security that the food packaging isn’t leaching a toxic chemical linked to reproductive problems, heart disease, and some types of cancer into their food.
You are right, the moderately high” pressure of about 7-8 bars (100-110 psi) that most riders use has the highest resistance. It’s a powerful placebo effect, and I believe it is the reason why narrow tires and higher pressures have become popular time and again in the history of cycling.
2. Aerolab will tell us is the size of the net difference in resistance forces between runs (which we normally all lump into an equivalent impact to CdA), but it won’t tell us the individual contribution of each resistance force that makes up that net change.
So the bike feels faster, even if you go at the same speed. Until we have conclusive results from a second round of testing, we have elected to remove the BPA-Free mention from our albacore and skipjack cans labels. But those ultra-low pressures aren’t useful on the road.
Tires can collapse, and supple tires will collapse more readily (and dramatically) than those with stiff sidewalls. As of October 2011, Muir Glen canned tomato products do not utilize BPA in product packaging. Working with our can suppliers and can manufacturers, Muir Glen was able to develop and test a safe and viable alternative that does not use BPA for our canned tomato products.