Includes v2 freewheel, 219H motor drive chainring, and retention bolts with corrected spacing. 
 
Available in 53T and 63T for Gen 1 and 2 X1 Stealth and Pro motors. Available in 72T for Gen 1 and 2 Pro motors. 
 
If changing 219H chainring size from original, be sure to replace the chain as well to match your motor and chainring size.