You can read up on our product categories and levels here: XCX, TRS, and LG1? Base, Plus and Race? What does all that mean?
When it comes to our bars and stems, the same principals apply except that we don't currently make a Race level stem.
Base: 6061 alloy and 404g
Plus: 7050 alloy and 295g
Race: Carbon and 234g
Base: 6061 alloy and 160g (40mm) / 178g (50mm)
Plus: 7050 alloy and 145g (40mm) / 163g (50mm)/hc/en-us/articles/5538359309723-What-are-the-differences-between-the-Base-Plus-and-Race-level-bars-and-stems-
Answer: Handlebar sweep and roll are highly dependent on personal preference. There is not a "correct postion" or "incorrect position".
Also, bicycle head tube angle will impact the roll requirement to achieve a "neutral" bar position for a given bar. This means marks on the bar indicating specific roll/sweep positions assume a specific head tube angle for them to be true. With modern headtube angles on bikes varying 5 degrees or more, there can be some notable differences between bikes which is why we don't explicitly state these numbers on our handlebars./hc/en-us/articles/4408332478619-How-should-I-align-roll-my-handlebar-relative-to-my-stem-for-proper-sweep-postion