Ns bikes enigma dynamal mtb rimthe enigma dynamal mtb rim features a wide 31mm profile that works perfectly with bigger tyres giving them more stability and a correct profile this tough high end rim is made of alloy with a special heat treatment procedure the new dynamal material offers superior mechanical properties such as increased ultimate tensile strength and yield of the material in short its way stiffer than standard alloys used in most rims on the market a sleeved connection resul