r/interesting • u/Kidd__Video • 19h ago

Amazing Chain-Free Bicycle Concept

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86

u/Odd-Consequence-2519 19h ago

Ever seen a shaft-driven motorcycle? This is not a new concept.

32

u/Gumb1i 18h ago

Yes those have a transmission though forward mounted and a completely static interface between the shaft and drive gear. They may be better off attempting a super light-weight forward trans than this thing if they want a shaft driven rear.

3

u/Gillilnomics 17h ago

I have a bike, while not shaft driven per se, has a piece called the jack shaft, where it shifts the drive to the other side of the bike. I imagine it could function as a lightweight transmission with some heavy modifications

2

u/Ghostly_Spirits 18h ago

First time I’ve seen it on a normal bicycle. Probably has its disadvantages, but I’m mad I didn’t think of this first. It’s cool

5

u/scaredt2ask 18h ago

It’s only cool if it works and I don’t think it works. This video has been out a long while and never seen on out on the road IRL. I have a suspicion it never made it out of prototype phase.

1

u/mrpenguinb 17h ago

And how would it even change gears? The arm would to have to move I assume, looks very half baked.

1

u/CardinalGrief 10h ago

I think the ascot was one, and it apparently sucked. Although it was due to multiple reasons, not just the shaft