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No chain and infinite gears - Oyo e-bike with hydraulic drivetrain hits crowdfunding target

7 comments

1 year 4 months ago

Just seen from the owners - apparently it weighs 25kg surprise There are cargo bikes that weigh less! 

1 year 5 months ago

I donno. Good pricing, but:

1) You have to turn the front wheel 90° to be able to remove the battery?

2) Who provides me with a new rear hub after 3-5 years of daily commuting?

3) Where do I get this one serviced? Local bike shops usually only accept bikes bought at their shops.

1 year 5 months ago

I wonder how many tons it weighs? And the efficiency question is likely the killer. Chain-drive is 95+% efficient. Even if this achieves 90% efficiency you're going to notice even with 250W in the motor. Although I assume the motor bypasses the hydraulic bit and is plugged straight into the rear hub which would help a bit!

1 year 5 months ago

What is it about crowdfunding that encourages people to reïnvent the wheel?

1 year 5 months ago

Haha. Soma fully hydraulic transmission, but mechanical disk brakes?

makes sense. Fluids are messy Wink

1 year 5 months ago

"we guarantee it, but just to be sure we give you a three year warranty"

So they warrant their guarantee?

Regardless, sounds interesting. My first thought also was how much is lost in the hydraulic drive. But on reflection, I don't suppose the target market cares too much. So long as the battery is good for the efficiency losses, then the other advantages all come to the fore. But if it does turn out to be super efficient then its application to regular bikes would be really interesting.

1 year 5 months ago

No more bleeding gears. Wait!