• Hildegarde@lemmy.world
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    22 days ago

    Imagine designing a bicycle without triangles. Every joint needs to be overbuilt, because there’s no structure from the geometry. But you make sure it still has a top tube, so its just as hard to mount and dismount as a normal bike. Incredible!

    • Kecessa@sh.itjust.works
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      22 days ago

      Right? Who would be crazy enough to do that?

      Next you’re going to tell me someone will make one without a top tube?

      • dejected_warp_core@lemmy.world
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        21 days ago

        Hey, look here buddy. You can’t be your own comment thread and post all the plausible responses yourself like that. You’re putting all the trolls out of work.

      • pyre@lemmy.world
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        21 days ago

        doesn’t that prove their point? they all look overbuilt, as the original commenter said.

        • Kecessa@sh.itjust.works
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          20 days ago

          Carbon fiber, aerodynamics…

          Not that rare in old mountain bikes either, pretty sure my old Raleigh was similar

          • Natanael@slrpnk.net
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            20 days ago

            Carbon fiber has very limited lifetimes when used for something with a lot of hard impacts, so if you’re not sticking to smooth surfaces the bike can literally split apart with little warning

              • Natanael@slrpnk.net
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                20 days ago

                I Googled “motorcycle carbon fiber wheel” and autocomplete immediately suggested adding “failure” and doing that search has endless relevant results

                • Kecessa@sh.itjust.works
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                  20 days ago

                  And if I do a research for “Toyota Tercel engine failure” I find tons of results as well even though it’s one of the most reliable car ever built.

                  Crazy how search engines show you results for what you’re looking for, right?

      • Hildegarde@lemmy.world
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        21 days ago

        The meme shows only bikes with flat handlebars, like commuter bikes intended for transportation.

        Every bike you posted are high performance racing bikes with specialized aerodynamic handlebars.

        Different priorities. Triangless bikes with a top bar is not a good idea for commuter bicicles like the ones in the meme.

      • bcron@lemmy.world
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        22 days ago

        Compliance but this is a very very extreme example - you’d hit a bump and the top tube would flex, kinda like a diving board, and smooth out the harshness. I’m not even sure this bike exists but that would be the practical purpose of such a design, but most manufacturers tend to go after the seat stays (Salsa Warbird, Bianchi with Counterveil, Moots Routt YBB) or decouple the seat tube from the top tube and allow it to flex due to seat tube angle (Trek Isospeed). Carbon’s kinda fickle and engineers are constantly trying to figure out how to finesse it into feeling less jarring and rigid

    • XEAL@lemm.ee
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      22 days ago

      Nah, but that tube is a little lowered, enough to make a difference.

  • Nougat@fedia.io
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    22 days ago

    I wonder how many revolutions the wheels will do before they bend into pretzels.

    • Dabundis@lemmy.world
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      22 days ago

      Also the pedals driving the outside of the back wheel puts a pretty heavy limit on the gear ratio

    • Cuck4Mai@lemmynsfw.com
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      22 days ago

      No springs or shocks means however many it takes, it will be the most painful ass-blasting ride until they do.

      • yamsham@lemm.ee
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        22 days ago

        I mean not necessarily. Road bikes pretty much never have any actual suspension, all the comfort comes from tire and frame flex. This bike has some fairly chunky tires on, and the way the seat post is just suspended off the back I’ll bet that frame flexes a ton.

        That being said, you’d still have to fine tune the design, and get the right amount of flex in the right ways. I kinda doubt anyone choosing to make a bike like this would have the competency to do that

    • Xtallll@lemmy.blahaj.zone
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      21 days ago

      Id put my money on the wheel mount failing because the whole wheel turns into a lever trying to break it every time it hits a bump.

  • AirDevil@lemmy.world
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    22 days ago

    This is the first step to having magnetic wheels become a thing. We know canonically Jim Kirk’s motorcycle uses these, so it’s definitely mainstream by ~2250.

    Honorable mention: the Bell Riots happen September this year, and it seems we’re on track for those too

    • pearsaltchocolatebar@discuss.online
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      22 days ago

      The technology is getting there. I forget which company did it, but one has developed an insane magnetic suspension system for automobiles.

      Right now the limiting factor is the energy required, so battery tech is the bottleneck.

      It’s a real shame shipstones haven’t been figured out yet.

      • TheTetrapod@lemmy.world
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        21 days ago

        For a heavily constrained system like a car’s shock absorbers, couldn’t permanent magnets be used instead of electromagnets?

      • Death_Equity@lemmy.world
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        21 days ago

        It was Bose. Yes, the premium sound system producers. It never went anywhere, despite being practical magic, because it added around 2,000lbs and cost six figures.

        They also developed a semi-tractor seat using the same sort of voodoo, which is on the aftermarket for around $5k installed.

    • edric@lemm.ee
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      22 days ago

      Would it be hard to translate brushless motors into bikes/vehicles? Don’t those things use magnetism?

  • EmperorHenry@discuss.tchncs.de
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    21 days ago

    That looks like it would be extremely unreliable and needlessly expensive to maintain. Maybe even impossible for the average person to maintain it

    • ssj2marx@lemmy.ml
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      21 days ago

      But it looks cool and that’s totally worth buying into a proprietary ecosystem and getting something incompatible with 99% of bike parts.

      • Aganim@lemmy.world
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        21 days ago

        Yup, that went well for Van Moof owners in the Netherlands. Also hipster bikes, the latest model turned out to be of dubious quality and was built using all custom parts. They had fun times getting their ridiculously overpriced bikes repaired after the company went belly up.

        • Obi@sopuli.xyz
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          21 days ago

          The whole van moof thing was absolutely hilarious tbh (if you didn’t buy one, I mean).

        • uis@lemm.ee
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          20 days ago

          I hope Netherlands will litigate good Right to Repair into existance. Netherlands is part of EU, so I belive in you.

    • BruceTwarzen@lemm.ee
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      21 days ago

      It’s so shit. There is a kickstarter of an ebike like that and it’s worse than you van ever imagine. It’s LOUD as fuck and worse in every way than a normal bike.

  • Fandangalo@lemmy.world
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    22 days ago

    As far as I can tell, this product never panned out. It was backed by 132 people to cover 150k GBP in 2017. It was called the “Cyclotron Bike”.

  • Turun@feddit.de
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    22 days ago

    The wheels are apparently really really loud when they are mounted like this. You just can make good enough ball bearings of this size at any reasonable cost and weight

  • Vexing@lemm.ee
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    22 days ago

    Yeah why do we need another bicycle?

    Also how does peddling move the wheels…? Missing something.

    • snooggums@midwest.social
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      22 days ago

      My first complaint is that it looks like it was designed by someone with zero knowledge of how to make a bike.

  • qjkxbmwvz@startrek.website
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    22 days ago

    Is there any regime where this is more efficient than spokes? I’d imagine that at high speed there’s an aerodynamic advantage (possibly similar to a track/TT disk wheel?), but I can’t imagine the bearings being better than current bikes. But bearing loss might (???) just scale linear with speed, so probably a win from aero in the end. But this isn’t counting weight, which I imagine is worse (but doesn’t matter much at high speed on flat ground).

      • UnderpantsWeevil@lemmy.world
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        21 days ago

        Broke: How many times will I need to repair this bike over a lifetime of ownership?

        Woke: How many people will stare at me as I’m biking?

        Bespoke: How many times will this bike get me laid?

        • captainlezbian@lemmy.world
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          21 days ago

          For the last one it’s more competitive than you think. I’ve gotten laid thanks to a bike people didn’t even see. Gets you an ass that does wondets

  • Emerald@lemmy.world
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    20 days ago

    i never realized until this moment that the meme showed them putting a stick in the wheels. i always thought they just happened to fall off.

  • cordlesslamp@lemmy.today
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    21 days ago

    Me on that bike: ah, muddy dirt road, my arc nemesis. And what’s that? a random pile of dog poop, my day’s ruiner.