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This NB (no batteries) series kit is the exact same kit as our KIT-MX481800-2 kit only without the batteries or battery charger. There is the option to add a 48 Volt 1.6 Amp charger for lead-acid batteries to this kit if needed though. 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 key switch on the throttle turns the bike's power on and off and the bike's...

This NB (no batteries) series kit is the exact same kit as our KIT-MX481800-3 kit only without the batteries or battery charger. There is the option to add a 48 Volt 1.6 Amp charger for lead-acid batteries to this kit if needed though. 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 switch on the throttle activates the speed limiter function of the controller. When...

This is a kit with no batteries (NB). We have this same kit with batteries which is our item # KIT-MX481800-10. 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...

We have this same kit available without batteries which is our item # KIT-MX481800-10-NB. 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...

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...

The key switch on the throttle turns the bike's power on and off and the bike's original power switch activates the speed limiter function of the controller. When the controller's speed limiter function is switched on the motor will operate at reduced power for slower speeds and a longer ride-time. 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,...

Two 12 Volt 15Ah batteries. The red button on the twist throttle is wired as the on/off main power switch. When this kit is used with Wheeleez 30cm (11.8" diameter) wheels the top speed is around 3 MPH, which is normal walking speed. The motor speed can be variably controlled from a full stop to top speed and everywhere in between with the included twist throttle. The freewheel to axle adapter in this kit fits 1" axles and has a 1/4" keyway. (We Also Have A 3/4" Axle Version) Freewheel to axle...

Wire Routing ChartThe controller to junction box wires are approximately 5 inches long. This kit has been upgraded from its original 1600 Watt motor to the new 1800 Watt motor. Select wire length options above. The speed controller can be programmed so motor runs clockwise or counterclockwise. A reverse switch can be wired to the controller if needed. This kit has a motor without mounting base. This same kit is available with a motor with mounting base. ...

Wire Routing ChartThe controller to junction box wires are approximately 5 inches long. Select wire length options above. Controller can be programmed so motor runs clockwise or counterclockwise. A reverse switch can be wired to the controller if needed. This kit has a motor with mounting base. This same kit is available with a motor without mounting base. Shipping weight is 116 pounds. ...

Two 12 Volt 15Ah batteries. The red button on the twist throttle is wired as the on/off main power switch. When this kit is used with Wheeleez 30cm (11.8" diameter) wheels the top speed is around 3 MPH, which is normal walking speed. The motor speed can be variably controlled from a full stop to top speed and everywhere in between with the included twist throttle. The 44 tooth sprocket is custom machined to fit onto the freewheel so please allow up to 5 business days for it to be made. The...

The SWT-23 handlebar mount switch with red button is wired as the reverse switch. The key switch on the THR-105K throttle turns the power on and off. The motor in this kit has a 9 tooth sprocket for #410 (1/2" x 1/8") chain. Need an axle sprocket, axle sprocket hub, or chain to complete your project? Click below to view our full selection of sprockets, axle sprocket hubs, and chains. Sprockets Axle Sprocket Hubs Chains ...

Wire Routing Chart Includes 10 tooth motor sprocket for #35 chain.This kit has reverse with a toggle switch that controls forward and reverse directions. The controller can be programmed to run the motor clockwise or counterclockwise when the forward-reverse switch is in the forward position so the motor can be mounted with its shaft on the left side or right side of the go-kart. This kit has a high-medium-low speed toggle switch which controls how fast the go-kart will run at. Select low...