My other half's bike has R8000, it's a Canyon so came mostly set up but the front wouldn't shift on to the big ring out the box. No problem I thought, I know how to adjust derailleurs, but actually had to look at the manual for that thing. Twice I set it up to work fine until shes actually riding it to work when it turns out it still doesn't shift properly and now also rubs the chain. Had to fully un-clamp the cable and start again with it.
My other half's bike has R8000, it's a Canyon so came mostly set up but the front wouldn't shift on to the big ring out the box. No problem I thought, I know how to adjust derailleurs, but actually had to look at the manual for that thing. Twice I set it up to work fine until shes actually riding it to work when it turns out it still doesn't shift properly and now also rubs the chain. Had to fully un-clamp the cable and start again with it.