The three rise options cover everything I need. The high rise 50mm works perfect on my dirt jump bike, the 35mm rise on my everyday 150mm trail bike, and the 20mm I use on my EMTB.Olly Wilkins, DMR Pro RiderThe Odub bar is the result of 20 years of development and feedback with DMR, as well as product design over the last decade, which is a pretty crazy thought!I like riding everything, from dirt jumps to XC, and I wanted a bar shape which would feel familiar across all my bikesthe 5º upsweep / 8º back bend is what I found to be perfect after trying all kinds of different shapes.SIZES ON SIZESThe three rise options cover everything I need. The high rise 50mm works perfect on my dirt jump bike, the 35mm rise on my everyday 150mm trail bike, and the 20mm I use on my EMTB.I use the 35mm clamp bar, and also wanted to offer ø31.8mm so people can use them on their existing stems. Obviously this is all down to personal preference but those are what I run right now. I run mine at vario