4 ms·
Lower pressure is required with wider tires (stress in the tire casing is proportional to P*r). Which is good, because it turns out that lower pressure, when co
by wiredfool 3y ago
Lower pressure is required with wider tires (stress in the tire casing is proportional to P*r). Which is good, because it turns out that lower pressure, when coupled with flexible tires, is actually lower resistance than high pressure.
Tubeless "just" allows for lower pressures without pinch flatting. The lower limit on pressure is to have enough to keep the bead seated, and not burping air. If you run lower than that, you've got to go tublar.
- Animats 3y agoThe seal between wheel and tire in a tubeless tire is good enough to hold air for months to years. That's incredible, when you think about it.
- justinator 3y agoFor bicycle tires (at least), this is true I guess, but the sealant is going to degrade to the point where one may not be able to ride that bike that's been set up tubeless for a few years, without changing out the sealant.
- loeg 3y agoMaybe in cars at 30 PSI. In bicycles at road pressures (60+ PSI), even with sealant you lose a few PSI every day.
- loeg 3y ago> Which is good, because it turns out that lower pressure, when coupled with flexible tires, is actually lower resistance than high pressure. Yes, on rough (real world) road surfaces, rolling resistance is lower. (Ignoring aerodynamic drag of a larger tire profile.) On smooth surfaces like velodromes, skinny tires at stupid high pressures are faster. (I only bring this up because I race at a velodrome.)