New Shimano 8 speed groupset with brifters.

[hamster]

That's the difference between an eBike and pedalling only. The big jumps between gears would be horrible: pedalling at an high cadence then a jump to a much lower one. I'm not riding an eBike.

 

[Tootyred]

And that's why the drivetrains are not lasting....imagine the stress being punched through the chain, cassette and freehub when both the motor and person stamp on it.

bosch now have admitted, that because people are not using the gears they are seeing 500 mile chains and a complete drivetrain in 1000 miles!

Hence these "new" link-glide teeth on shimano e bike / heavy duty stuff.