Can you be FASTER like this? -- SUPERMOTO MYTHBUSTERS --

[@MVPever]

First of all, thank you for your interesting video: the experiment has been carried out in a scientifically meaningful way and it's also pretty cool! Just one thing, but I'm being a little pedant here: you could have measured the wind speed and direction, maybe using windsocks or anemometers from the airfield. I'd also like to quantify the air drag; I'm no engineer but I like physics and supermotos. So the power absorbed by the air drag can be estimated via the following formula: 0.5 • drag coefficient • frontal area • air density • velocity³ By using some data found on the internet at reliable sources, a typical value for the drag coefficient • frontal area of a sportsbike is 0.5 m², including the rider in a prone position. Using it, at 140 km/h the aerodynamic power absorptance should be about 25hp. For a dirtbike, which surely has a worse drag coefficient, it must be even more! Basically half of the power of your CRF is fighting the air drag, at that speed. I own a Husqvarna SM610 that I used on public roads and now i use it only on tracks; mainly Castelletto di Branduzzo (I'm Italian). On public roads it often happened that I had to cruise on some long straight roads before reaching the twisty roads on the mountains and I found the air drag quite unpleasant, so I used to tilt my body forward until I found that sweet spot at which the drag seemed to balance the weight imbalance; I felt more comfortable in that way. At Castelletto I do it because it's more comfortable, faster and it even feels more exciting. I know that very fast riders like you make something like 180 km/h at the end of the straight in Castelletto and so I guess that you would gain even more than 0.2 seconds there.

[@GetLowRacingOfficial]

Heyo, I like being pedantic :D We didn't have access to airfield stats, but all the runs were +-1 km/h (per position), so a tight enough spread to draw conlcusions I think. About Castelletto, we get to around 170kmh (according to GPS chronos), though the straight lasts maybe less, because we are shifting from 3rd and always in the powerband (in the vid I start in 5th very much out of powerband, for consistency). So it could be the same time difference! Comunque a Kaste ormai si fa le gare con la chicane, quindi niente strategie furbe :D. Io sono ingegnere e il film editor (Erik) sta facendo il master di fisica, quindi apprezziamo discussioni tecniche :) Grazie per il commento e speriamo si torna in sella a breve!

[@MVPever]

@@GetLowRacingOfficial Complimenti a te e a Erik per gli studi! Speriamo!

[@2ane]

it certainly gets a lot more stable on my 2-cylinder above 190km/h though.

[@GetLowRacingOfficial]

I believe you! It made a big difference in just this short section

[@j.w.presents9552]

Great videos guys. .2 is a huge difference from just aero. Look at how much mph you've with the aero aswell. I've seen people who picked up 4-5mph in the 1/4 mile on a 1000cc bike just from proper tucking.

[@GetLowRacingOfficial]

Yeah it can definitely be a good tool to catch some tenths on long straights

[@hunterst.george2773]

WOW! the production quality and content is great ... you should have 1000000 subs !

[@GetLowRacingOfficial]

From your lips to God's ears 😅 thank you!!

[@Zwiepmoto]

Dope bikes! 👌😎

[@tajjson]

Great video!!!

[@GetLowRacingOfficial]

Very happy you liked it!

[@AudiMotorsport]

jaaaaaaaaa frajarjenje po tazadni :)))))))) top!

[@GetLowRacingOfficial]

Se ne da brez, nismo še dozoreli 🤣

[@jacobchhakchhuak6982]

I'm from rok bagoros vids 👍👍

[@pkerttu]

Gearing and top speed?

[@GetLowRacingOfficial]

Mx bike 13-48 Sm bike 14-47 Top speeds I don't know 😅

[@pkerttu]

@@GetLowRacingOfficial ok, husqy 450 fs 2018 with 14-48 gearing does 160 before revving out. Did 180 with 15-45 but it was not revving out so i suspect 15-48 is a good top speed gearing before touching the motor.

[@GetLowRacingOfficial]

@@pkerttu good assumption, I always gear for the tracks, I never hit top speed. I think 14-48 hits the limiter at around 165kmh. I have a racing motor and ECU though, they squeal quite higher than stock.

[@paul1e]

Thought it would make big different 😅

[@GetLowRacingOfficial]

I don't know 0.2s in 7s to me is alot, I thought less 😅

[@paul1e]

@@GetLowRacingOfficial yes but when i ride my 690smc r on highway 100kph and go down speed increases without twisting the thorttle

[@GetLowRacingOfficial]

@@paul1e interesting, by how much?

[@paul1e]

@@GetLowRacingOfficial sry late reply, goes to 103-106km/h