The Subrosa Arum 20'' is a freestyle BMX bike designed for intermediate and expert riders. The frame has a medium sized 20.5'' top tube, so you get a versatile BMX bike which size will fit most riders. The Arum has always been about the look. This line has a reputation for consisting of the wildest looking bikes in the Subrosa lineup and always pairs a wild colour scheme with high-end materials and killer component packages. This year it is all about letting the bike shine in more subtle tones.