The highest level of technology ever seen in a rim: ISM, UST, Fore, Maxtal. This 21 mm asymmetrical rim is the perfect partner for riders looking for strong and versatile rims Comes with Mavic thread in nipple holders 29in Mavic EN821 Disc 622 21 26 21.2 Dbl Disc Black 32 PV 505g 594.5 ...