Originally Posted by
PromptCritical
I'm looking for a Shimano 9-speed cassette with the largest cog in the 42T range. The only ones I can find are from the CUES groupset. Since this is for a tandem, the "E-Bike rated" design seems like a good idea. Does anyone know if these are interchangeable with my current Deore XT setup?
First, if the ebike has a hub motor, the gears don't get stressed more. Mid-drive, yes. But I would only respect "e-bike rated" if there were numbers to back up that claim. Since cog dimensions are required to be the same, that means either better steel or better surface treatment or both, and test data to back up claims. Otherwise, it's just hype. (Not to be confused with Hyperspaceglide which actually works. Those were the days, significant improvements every year or two, constant trickle-down to the lower groupsets.)