4 ms·

They're already using wider tyres than a decade ago.

by mantas 5y ago

scoofy 5y ago
Yes. Much, much wider. I nearly passed by this comments section because i assumed everyone already knew this was true.
- at-fates-hands 5y ago
  I think you're exaggerating a bit. From 2018: https://www.businessinsider.com/tour-de-france-wider-tires-lower-pressure-faster-2018-7 https://www.businessinsider.com/tour-de-france-wider-tires-l... "It depends on the road surface, but 10 years ago the standard was 23mm tires at 8 or 8.5 bar, or 115, 120 psi," Brown said. "And now it's 25mm for regular road racing and 7 to 7.5 bar for front and rear, so a little less than 100 to 110 max on the bikes." 2mm and 10psi less is not that huge a difference.
  - mantas 5y ago
    It's pretty big when you take into account whole context. Stuck up "socks size is a rule" UCI, historical norms, technical limitations (25mm is a limit for caliper brakes), tire tech (wider tires used to be heavy).... My prediction is 27mm being the norm in next 5 years. Currently I'm riding a decade-old road bike. It was fancy at the time because it fit 25mm tires without issues. People would give me shit for "slow" tires on group rides. But 25mm tyres improved a lot in that time. Now I wish it could take 27mm :(
    - loeg 5y ago
      25mm is not a limit for caliper brakes? No idea why you claim that. One of my bikes has calipers and can fit 33mm tires. Also 28mm is extremely common; 27mm doesn't exist.
      - usrusr 5y ago
        There are definitely calipers that can't take a 28. And the mounting bolt position isn't a precise norm, there are frames that put the brake considerably closer to the rim than others. And not without reason, the effective length of the caliper arms has an obvious influence in brake leverage.
      - mantas 5y ago
        Classic road bike caliper breaks don't >25mm. 33mm would be cantilever CX brakes. Or a weird type of caliper.
      - nchie 5y ago
        Nit-picking, but 27mm is very common as the "actual width" of tyres branded 25mm.
  - wizzwizz4 5y ago
    8% width and 13% pressure is significant.
- usrusr 5y ago
  True. And these days, "wider is faster" is the cycling myth in need of getting corrected. Because is mostly a tie, with a very soft optimum between clearly worse extremes (neither 10 mm nor 10 inch would be fast). And people who feel in the mood for "overthrowing the old" will often do comparisons were they lower pressure on the wider tires, but don't really lower then adequately, they compare a narrow tire at the lowest and of its useable pressure range to a wider tire at the high end of its range and, surprise, with these conditions the wide one rolls easier. The assumed optimum has shifted, but it hasn't run away.

They're already using wider tyres than a decade ago.

by mantas 5y ago

They're already using wider tyres than a decade ago.

scoofy 5y ago

Yes. Much, much wider. I nearly passed by this comments section because i assumed everyone already knew this was true.

at-fates-hands 5y ago
I think you're exaggerating a bit. From 2018: https://www.businessinsider.com/tour-de-france-wider-tires-lower-pressure-faster-2018-7 https://www.businessinsider.com/tour-de-france-wider-tires-l... "It depends on the road surface, but 10 years ago the standard was 23mm tires at 8 or 8.5 bar, or 115, 120 psi," Brown said. "And now it's 25mm for regular road racing and 7 to 7.5 bar for front and rear, so a little less than 100 to 110 max on the bikes." 2mm and 10psi less is not that huge a difference.
- mantas 5y ago
  It's pretty big when you take into account whole context. Stuck up "socks size is a rule" UCI, historical norms, technical limitations (25mm is a limit for caliper brakes), tire tech (wider tires used to be heavy).... My prediction is 27mm being the norm in next 5 years. Currently I'm riding a decade-old road bike. It was fancy at the time because it fit 25mm tires without issues. People would give me shit for "slow" tires on group rides. But 25mm tyres improved a lot in that time. Now I wish it could take 27mm :(
  - loeg 5y ago
    25mm is not a limit for caliper brakes? No idea why you claim that. One of my bikes has calipers and can fit 33mm tires. Also 28mm is extremely common; 27mm doesn't exist.
    - usrusr 5y ago
      There are definitely calipers that can't take a 28. And the mounting bolt position isn't a precise norm, there are frames that put the brake considerably closer to the rim than others. And not without reason, the effective length of the caliper arms has an obvious influence in brake leverage.
    - mantas 5y ago
      Classic road bike caliper breaks don't >25mm. 33mm would be cantilever CX brakes. Or a weird type of caliper.
    - nchie 5y ago
      Nit-picking, but 27mm is very common as the "actual width" of tyres branded 25mm.
- wizzwizz4 5y ago
  8% width and 13% pressure is significant.
usrusr 5y ago
True. And these days, "wider is faster" is the cycling myth in need of getting corrected. Because is mostly a tie, with a very soft optimum between clearly worse extremes (neither 10 mm nor 10 inch would be fast). And people who feel in the mood for "overthrowing the old" will often do comparisons were they lower pressure on the wider tires, but don't really lower then adequately, they compare a narrow tire at the lowest and of its useable pressure range to a wider tire at the high end of its range and, surprise, with these conditions the wide one rolls easier. The assumed optimum has shifted, but it hasn't run away.