This is a thumb-operated throttle designed for Super73 electric bikes that use a trigger-style speed control. It provides a simple, controlled way to manage acceleration without switching to a twist throttle.
It’s most commonly used as a replacement for a damaged or malfunctioning throttle on Super73 ZX, RX, or Miami models.
Key Features
• Thumb-trigger style throttle for electric bikes
• Allows controlled, incremental acceleration
• Compact design that mounts cleanly on the handlebar
• Designed for consistent signal output and smooth response
• Lightweight construction for minimal cockpit clutter
Compatibility & Use Notes
• Compatible with Super73 models:
– ZX
– RX
– Miami
• Designed for Super73 electrical systems and connector standards
• Handlebar mounting on standard e-bike bars
• Not universal—connector style must match the original throttle
• Not compatible with pedal-assist-only configurations
Service / Ownership Context
Throttle components are safety-critical. After installation, the bike should be powered on and tested with the wheel off the ground to confirm smooth engagement, full return to zero, and no binding during steering. Connector fit should be verified before powering the system.
Fit & Use Signals
• Good fit for Super73 ZX, RX, and Miami models
• Good fit if your existing thumb throttle is damaged or unresponsive
• Good fit if you prefer trigger-style speed control
• Not a fit for non-Super73 bikes
• Not a fit if connector or wiring does not match your system
