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.

 

[Retrorockit]

Zero Friction Cycling found that Shimano parts are softer than SRAmM. Shimano chains last better with Shimano cassettes, and Sram with SRAM. The say SRAM chains will wear Shimano cassettes.
Some of the factory Ebikes have gone to drivers as small as 9 teeth. I run a 50t ring and spend most of my time in 15t, maybe 13t if I'm in a hurry. rarely the 11t top cog. I haven't had excessive wear or breakage. I do rivet my chain because I've broken a few of the tool less links. I've gone to Front Freewheel to keep the chain moving when shifting where pedaling isn't possible. That helped a lot. But the Sunrace 11-40t has worked well for me, and no problems os far with similar Shimano. But maybe it will wear faster over time?

 

[Thias]

So what shifter/trigger are you supposed to use?
And what is that clutch stuffsupposed to do? Maybe allow for a wider range?