Our patented electric motor assist kit for cargo bikes. Stokemonkey gives the power and confidence needed for the heaviest loads. Fits Xtracycle FreeRadical and Edgerunner, as well as Yuba Mundo and Surly Big Dummy. Includes: Motor, 25A Controller, CA3-DPS, Clampset, Bracket, Non-Drive side crank, ACS Freewheel, Cables, Chain. Battery and installation not included.