Wanted to have a discussion about tire sizes - which is more suited, and for what.
Our 10s (Keizer rim, hooiser 18') weigh 13lb each. An older set of 13's weighed 18lb each. So, thats a 20lb difference, plus lets say 10 more for upright size (probably is less) - A arm would be about the same. So, around 5% weight gain with driver inside.
Looking at the TTC, 13s make much more peak grip - around 25%. So why go for 10s? Doesn't seem like a very advantageous choice. I joined the team after the choice was already made, and unfortunately didn't look into it till recently. The reasons I was told were "weight saving, spinning inertia" (on a high 400s steel frame car), "grip is more usable", and "heats up faster".
I havent dived into TTC in depth yet, relying on the findings of an alumni - who advocated for 13s, yet 10s were chosen.
Curious to see some of your reasoning in tire choice, as honestly I cant see the benefit in 10s. Or at least, not a one that warrants the switch.