Power Black compound is suitable for less aggressive riding and is very good in dry and wet conditions. It is specifically recommended for rims made of softer alloy. GHP II is a high performance compound for aluminium rims. It is excellent in the dry and unbeatable in the rain. It has extremely low pad and rim wear. Yellow King is has awesome power (wet and dry) and precise modulation on carbon rims. No squeaking and very little wear to the rim. It's also good for alloy rims.Note: Please check brake pad compatibility with your wheel manufacturer before use