Powered, geared, and test proven for speeds up to 26 MPH.
This is an NB (no batteries) series kit. If you already purchased a 48 Volt battery pack to overvolt a Razor MX500, MX650 or SX500 dirt bike and now want even more power and speed then this is the right kit for you.
The motor in this kit is the same size as the original motor and
directly replaces it with only one metal tab spacer needing to be cut off the
bike's frame so the motor's power cord does not hit it, and one 1/4"
hole drilled into the inside of the frame for one of the motor's bolt
heads to fit inside. 1/4" Hole Template Directions (PDF)
This modification kit requires custom installation (mounting) of the battery pack and controller.
This kit is electronically 100% plug-and-play. We install matching
connectors on every part of this kit and label them so all you have to
do is plug everything together.