Just for edification the 6800 ss and gs have the same length body, it’s the cage that was different. Even though they are supposedly maxed out at 30t I’ve never had a problem setting one up for 34t.
If it’s 8000 I’m not 100% sure if the body is the same between them as they’re listed with different max cogs. But Shimano is always a bit conservative on those measurements. I could clear a 30t with 7700 and 32t (I was tempted to try 34) with 7800.
Just for edification the 6800 ss and gs have the same length body, it’s the cage that was different. Even though they are supposedly maxed out at 30t I’ve never had a problem setting one up for 34t.
If it’s 8000 I’m not 100% sure if the body is the same between them as they’re listed with different max cogs. But Shimano is always a bit conservative on those measurements. I could clear a 30t with 7700 and 32t (I was tempted to try 34) with 7800.
And well I like big cassettes on road bikes ;)