Garmin Index Sleep Monitor S/M ANT+ BT CheckoutTitle=Cane Creek Hellbender 70 Headset - ZS44/28.6/H8 Upper | ZS56/40 Lower Freehub Body SRAM XD-R Freehub

Freehub Body SRAM XD-R Freehub Compatibility ENVE Speed 12

Tooth Count 40Drivetrain Speeds 12Round or Oval RoundOffset 6

} Forged CrMo spindle for JIS square taper

Any SRAM crankset that has a direct mount spider that requires 8-bolts

Garmin Index Sleep Monitor S/M ANT+ BT CheckoutTitle=Cane Creek Hellbender 70 Headset - ZS44/28.6/H8 Upper | ZS56/40 Lower Freehub Body SRAM XD-R FreehubHow did you sleep? Find out with the Index Sleep Monitor . Comfortable, lightweight and worn on the upper arm, this smart sleep band helps you better understand how your body recovers by capturing sleep tracking and recovery metrics as well as advanced womens health data (data presented is intended to be a close estimation of metrics tracked). Plus, get up to 7 nights of battery life. TECH SPECS Connectivity ANT+ BT Misc S M