DESCRIPTION: Universal Parts Electrical Kit for all versions of Razor MX500, MX650, Dirt Quad 500, SX500 and Eco Smart. Includes throttle and control module and must be used together. Please verify measurements before ordering, additional mounting bracket may be required and is available upon request through Razor.Electronic items are non-returnable Compatible with Razor Part #: W13114501164 36V 30A 6-Pin Throttle and Controller Model No: HB3650-TYD6-FS-ROHS Bolt Hole Spacing (controller): 115mm (4.5 inches) Throttle Wire Length: 57 inches Razor, Razor MX500, Razor MX650, Razor SX500 McGrathMX500 and 650 Dirt Rocket