• LaLuzDelSol@lemmy.world
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    10 days ago

    Yeahhhh that isn’t a real bike though. I got excited but the more I look into it the more it looks like just vaporware. Assuming 4kg per kWh that’s 80kg in the battery alone. No way can you make a whole motorcycle with a top speed of 200mph for 140kg minus the battery.

    • Cypher@lemmy.world
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      10 days ago

      They do have some prototypes but scaling to production for these sort of startups is always the killer.

      No way can you make a whole motorcycle with a top speed of 200mph for 140kg

      Why not? My ZX6R with a sprocket change will hit 200mph and it weighs 190kg including fuel. Take out the fuel, engine, sprockets, chain and it would be about 140-145kg. Add battery and hub motor.

      Seems pretty simple really.

      • LaLuzDelSol@lemmy.world
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        9 days ago

        I think you are being loosey-goosey with your numbers. Nobody online seems to be able to get a stock zx6r above 160 mph. Sorry, I’ll believe it when I see it… if making a high-performance 200-mile-range motorcycle was as simple as adding a bigger battery somebody would have done it by now. The demand is there. But I think the sacrifices to performance and added cost would make that kind of bike-if not physically impossible-at least impractical to build.

        • Cypher@lemmy.world
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          9 days ago

          The first motorcycle to break 300kph was a Triumph powered Streamliner in 1956 ridden by John Allen with a 650cc parallel twin running on methanol.

          A standard 650cc parallel twin from Triumph at the time produced around 34 hp, with race cams, pistons, air intake and exhaust and running methanol that could go as high as maybe 65hp at the crank. Maybe.

          A streamliner is more aerodynamic than a ZX6R however the ZX6R puts out 113-116 hp at the wheel… without RAM air. Change the sprockets and it’ll do 300kph, which to be fair isn’t 200mph but freedom units were never my strong suit.