36
submitted 8 hours ago by [email protected] to c/[email protected]
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[-] [email protected] 1 points 1 hour ago

Nope! Nope, nope, nope... errrr NOPE!

[-] [email protected] 6 points 3 hours ago

I feel like the bigg trux klan will just roll extra coal if they see you wearing this honestly idiotic lookig accessory.

[-] [email protected] 9 points 6 hours ago

Nope, definitely not. That is wasted space. The back is for holding a backpack with a hydration reservoir. Anyway, I'm trying to gain strength and lose weight, not reduce my times by .02%.

[-] [email protected] 3 points 4 hours ago

Believe it or not, hydration packs have been shown to reduce aerodynamic drag for cyclists. There was a brief moment in pro cycling where riders wore them during time trials to shave a few tenths off their time. Strangely, the benefit of wearing one backward (on your chest) is a little bit better than wearing it on your back.

Needless to say, the UCI quickly banned hydration packs altogether.

[-] [email protected] 2 points 1 hour ago* (last edited 1 hour ago)

'cause the UCI are dickheads and want to live in 19..f@#k!ng..10. Let fixate on sock height, frame weight, aero tuck and shifter angles, but ignore road furniture, dickhead crowds assaulting riders and fine riders when the organisers cant organise (looking at you Vuelta)

[-] [email protected] 1 points 1 hour ago

You're preaching to the choir, my friend.

[-] [email protected] 2 points 4 hours ago

Strangely, the benefit of wearing one backward (on your chest) is a little bit better than wearing it on your back.

That's fascinating and makes me wonder if wearing both at once was tested. I can't imagine it'd be comfortable though.

[-] [email protected] 2 points 3 hours ago

They definitely did try both but I don’t know if anyone was ever cheeky enough to wear that setup in an actual race.

Currently they’re putting race radios in the front, centered side to side, during TTs. Rumor has it that the UCI has already had to tell a couple of teams to stop using extra tape and stuff to embiggen the radio lump.

[-] [email protected] 9 points 6 hours ago

Anything that makes a cyclist look even more fucking ridiculous gets a green light for me. Grown men dressed in spandex with sperm shaped helmets is already hilarious. Add to that a fucking binbag...

What's nuts is they can spend thousands for the look.

[-] [email protected] 10 points 5 hours ago

Out of curiosity what is in the approved list of attire that you think is okay for “grown men” and what is in the unapproved list?

[-] [email protected] 3 points 1 hour ago

Approved atire is a t-shirt and shorts. Or a coat and pants if it's cold out. Or nude if you're in one of those nude rides.

[-] [email protected] 3 points 5 hours ago

No. I probably should wear those padded crotch pants and clip-in shoes when I do distance but I'm low tech with biking. It's all about the journey.

[-] [email protected] 2 points 5 hours ago

Yeah, I just wear regular clothes and hiking shoes.

[-] [email protected] 4 points 6 hours ago

Reminds me of those Civic owners who add a bunch of mods to make it more aerodynamic

[-] [email protected] 6 points 7 hours ago

How would this reduce drag? Genuinely curious.

[-] [email protected] 17 points 6 hours ago* (last edited 6 hours ago)

My understanding is that it has to do with form drag -- aka pressure drag -- which results in vortices forming in the "separation region" directly behind an airfoil. Or in this case, a rider. Essentially, the swirling of air behind the rider is turbulent -- which is why a hoodie might flop all over the place -- and that causes energy to be lost.

This video on Nebula (and YT as well) describes pressure drag at about the 02m30s mark for a sphere. But this graphic from Skybrary also shows the problem:

form drag

By providing a smooth surface for air to "cling" to, where it would otherwise form vortices in the separation region, should reduce form drag, although it will cause additional induced drag (aka friction with the new surface). But induced drag scales with speed and at cycling speeds, that's less a problem than it would be at airplane speeds.

A related drag-reducing device has been used for semi-truck trailers, and those have really been proven to reduce fuel consumption. Although the Wikipedia article does not describe in detail the aerodynamic principles at play.

[-] [email protected] 6 points 5 hours ago

My genuine thanks for taking the time to craft your lovely reply.

[-] [email protected] 7 points 6 hours ago

Here's one site that has info on skirts (under the trailer to reduce side flow) and tails at the back. There's an image of a wind tunnel view that gives a good idea what it helps with. Those vortexes at the back of a flat trailer suck a lot of power.

image

[-] [email protected] 2 points 3 hours ago

I'd much rather have my shirt going all floppy flappy in between the vortices and keeping my back cool than shaving 2 seconds off my relaxation cruises.

I know some people who would jump on this 100% and I should probably send them the article...

[-] [email protected] 3 points 6 hours ago

Just guessing: trying to minimize vortexes and turbulences.

[-] [email protected] 5 points 7 hours ago

Das a garbage bag man

[-] [email protected] 5 points 8 hours ago

Not sure how much safety this really adds...

[-] [email protected] 15 points 7 hours ago

Any safety it adds would probably be immediately offset by the added dangers of drivers being unable to see or steer effectively due to uncontrollable laughter.

[-] [email protected] 11 points 7 hours ago

The guy on the left is trying so hard 🤣

this post was submitted on 20 Sep 2024
36 points (97.4% liked)

micromobility - Ebikes, scooters, longboards: Whatever floats your goat, this is micromobility

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