Shimano 7800 Chain, 9000 cassette, Wahoo trainer

[Horacio]

Anyone know off hand if I can use a 7800 chain on a 9000 cassette without damage to either?


Thanks

[lannes]

I use a wippermann 10s1 chain on a 9000 cassette, it's a pretty close fit, I'd recommend an 11 speed chain just to be safe you don't add extra wear where it's not needed.

[Horacio]

My wife's bike has DuraAce 7800 and my bike is 9000. It's a total PITA to swap cassettes on the trainer when I have to take it to races bc she uses it during the week. I'd prefer just to leave a 9000 cassette on all the time instead of using the one that came with the Wahoo trainer.

[Horacio]

.

[Frankie - B]

Then simply put an 11 speed chain on her bike. it will work on 10 speed.

[Oswald]

Or just buy a 100 USD Tacx trainer for races... And keep the Wahoo at home...

[11.4]

You can use the 10-speed chain on an 11-speed cassette but it's noisier and you can't cross-gear much. And frankly, I wouldn't want to abuse a narrow chain that much -- I've broken a few chains in my life and losing a chain as you're out of the saddle hauling up a hill is not a great way to hit the deck.

As pointed out, just switch to an 11-speed chain on your next chain replacement.

[Horacio]

Thanks all, that's what I'll do.