Hands On Bike: Shimano Ultegra R8000 vs 105 R7000: 11 Speed Cassette
Derailleur capacity - what is the max my derailleur can handle? -Techcenter
Mechanical help! 11-28 to 11-30 - Equipment - TrainerRoad
What is the right gear ratio for me? [How-to] - Mantel
Chain length - changing cassette from 11-28 (pictured) to 11-30. Based on the derailleur position in big chainring/biggest cog, should I keep the same chain length or go longer? : r/bikewrench