Enve gen2 m60 mtb rear wheelthe enve gen2 m60 rear wheel is the most versatile carbon fibre mountain bike rear wheel in the m series and is designed for mountain bikers who love to ride race and are looking for a wheelset that will do it all from singletrack to trails and downhill runs a must for any serious mtb rider features material carbon fibre wheel size 27 5 compatibility shimanosram 91011 speed rim depth 32mm external rim width 29mm internal rim width 23mm erd 532 hub size