Diem Turner
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Just a heads up to anyone who never thought to confirm their stated dimensions...
They've always been listed everywhere I've seen them as having a 98mm diameter (3.858"), this includes any of their own tech specs. This goes for both the old style 14 spoke wheels as well as the new(er) 20 spoke wheels. I always figured "why would they misrepresent something so basic that any moron can confirm (or not)?". What is it they always say? Measure twice, cut once? Don't ask me how that applies here...because it doesn't. But my calipers don't lie. They actually clock in right around 96.5mm (3.8"). I've checked two sets of four GTK 20 spoke in compounds 5 and 7 respectively and all eight tell the same story. So if you've ever found your calculations a bit off with them, that's worth about 2.5mph on 3S around the 110mph mark. Scale as needed.
I'm certain that I'm not the first to notice this (came up short and a couple of years late) and it's probably been mentioned somewhere but it definitely passed me by and in case there are other trusting and naïve rubes out there that just believe what it says on the tin...consider yourself told. Of course ballooning will recoup the difference at speed but, if you're calculating tire ballooning as I was...what the one hand giveth, the other taketh away.
Happy motoring!
They've always been listed everywhere I've seen them as having a 98mm diameter (3.858"), this includes any of their own tech specs. This goes for both the old style 14 spoke wheels as well as the new(er) 20 spoke wheels. I always figured "why would they misrepresent something so basic that any moron can confirm (or not)?". What is it they always say? Measure twice, cut once? Don't ask me how that applies here...because it doesn't. But my calipers don't lie. They actually clock in right around 96.5mm (3.8"). I've checked two sets of four GTK 20 spoke in compounds 5 and 7 respectively and all eight tell the same story. So if you've ever found your calculations a bit off with them, that's worth about 2.5mph on 3S around the 110mph mark. Scale as needed.
I'm certain that I'm not the first to notice this (came up short and a couple of years late) and it's probably been mentioned somewhere but it definitely passed me by and in case there are other trusting and naïve rubes out there that just believe what it says on the tin...consider yourself told. Of course ballooning will recoup the difference at speed but, if you're calculating tire ballooning as I was...what the one hand giveth, the other taketh away.
Happy motoring!