First, there are totally gravel Tris, and, … I spent a bunch of time making this as my frontend guy is really considering taking this dual sus XC MTB to a gravel race. Considering it’s a bunch of aero tests, I thought you guys might find it entertaining regardless:
Also, I have a non-existant youtube presence, I just can’t upload the video here (it doesn’t allow .mp4s) so this isn’t any type of plug to get you there.
What is this? I’ve been making a startup in my freetime to use cutting edge AI techniques, custom algorithms, and CFD techniques to develop a system to go from one quick video to CdA.
Learn more here: https://wind-tunnel.ai (this project is in beta (evolving almost daily at times it’s quite improved from the last time I mentioned it) and I’m the founder/lead developer. It seemingly works quite well, but I’m not here to make promotional content, more like, here’s a cool, potentially game changing thing, and I’m using it to optimize the frontend guy’s (actually my Twin brother’s) setup for Barry Roubaix in MI, and who loves aero tests more than the Triathlete crowd?).
Also, we have other tools too (this one’s totally free). Like our powerful mixed-surface, mixed-bike cycling physics simulator: GPX Route Speed Estimator for Cyclists: Multi-Surface, Weather, and Nutrition Strategy.
This sim accounts for everything from your bike setup, local weather, to the specific terrain you’ll encounter. Triathletes, we’ve even got Kona pre-loaded for you.
Scan and compute your CdA, enter it manually, or let the calculator estimate it using your tire size, height, weight, and bike type. It’ll accurately predict your timing and location along any course.
Sign up for a free account (it helps protect against costly weather data abuse, but again, totally free, no way to “subscribe” or pay whatsoever) and get detailed forecasts every 5 miles—real wind, humidity, exposure, electrolyte loss, and macro use, tailored precisely to your ride/athlete info.
Surface type not accurate? Just “paint” over it directly, correcting data from our scans or publicly available sources. Pavement, gravel, gnarly singletrack—we’ve got plenty of options.
Curious how surface types, corners, or your riding style impact speed? It’s all personalized to your inputs. Less skilled but super strong? You might beat a downhill pro riding a TT bike on mixed terrain with a MTB.
The simulation dynamically mimics how you adjust your posture when cycling—getting aero into headwinds and downhill, less aero uphill. Power distribution automatically adapts, putting more effort into climbs and headwinds, and easing off on descents or with tailwinds.
Again, enjoy—it’s totally free, built because we wanted a powerful tool to further develop our setups.