Good luck to all of you attending the Sr. Games. I started out on a V20 , needed to ride a couple thousand mile to transition into the V20. My experience with the stock V20 wheelset was way to may pinch flats.
I have upgraded to a V20c that i build from the frame set. I use the Boyd carbon wheelset with thru axel end caps. Currently, I am using a 32mm front and a 28mm rear tire. I am trying to dial in the tire pressure for my 165lbs. I still have tubes installed. I am at 70psi front and back. Now some back story. I live and ride in Minnesota. Which means I ride on bike trails when I can. The approach apron to bike bridges tend to settle and cause a sharp 90 degree edge on the bridge approach. This is a receipt for a pinch flat. I'm hoping to get some better odds with the larger tire. Believe me I memorize the bridges and their condition to reduce my flat tires. But as you all know Events Occur and that's life.
So my question is what tire pressure calculator would you suggest? And are their any downsides to the 32mm vs 28mm Front / Rear choice i am using?
ps Has anyone calculated the speed at which the deep carbon wheel gains the most aero advantage?
70psi with tubes is really low IMO Bentaxel. On Tubeless it's likely okay, but I when I do have tubes installed I never start a ride with less than 90psi, and I am about 178lbs. Also, I run a 700x28mm on the front and a 700x25mm on the rear. With tubeless I'll start the ride at 80psi or so.
As for what speed deep rims start making a difference that kind of depends on how many aerodynamic watts saved are important for you. Since I got my V20 for speed instead of climbing (which it still does very well), I would never run anything more shallow than the current 60mm Mavic CXR wheels I now have. Even though I have Campagnolo Zondas that are probably 400-500grams lighter I wouldn't even bother to put them on if I were going to take my V20 into some serious climbing. Actually, if I absolutely had to change wheels I would only go with something even deeper than 60mm.
For perspective, all my rides have very little elevation change, and even though I oftentimes try to slow down for Zone 2 rides I find it incredibly hard to not step on the gas a little when the average speed drops below 30kph (18mph). At my current weight and bike setup my V20 just starts singing at that speed and just feels better and better the faster it goes. So, according to my unscientific calculations, and how many aerodynamic watts that are important for me, at 25kph deep wheels are a must, not even counting the bling factor.
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