Universal Thumb Throttle Lever Assembly with Speed Governor for 50cc–250cc ATV & Go-Kart

Product Overview

Take control of your ride with this universal Thumb Throttle Assembly, engineered for safety and precision. Designed to fit a massive range of youth and adult ATVs, this lever features a built-in speed control governor—an essential safety feature that allows parents to limit top speeds for younger riders. Whether you are replacing a broken unit on a TaoTao or upgrading a custom Go-Kart, this assembly provides a smooth, reliable throttle pull every time.

Product Compatibility

Vehicle Type	Displacement Range	Common Compatible Brands
ATVs / Quads	50cc, 110cc, 125cc, 250cc	TaoTao, Buyang, Coolsport, Kazuma, SUNL
Go-Karts / Buggies	150cc, 200cc, 250cc	Lifan, Redcat, Hammerhead, Yerf-Dog
Pit Bikes	Conversion Builds	Any model with 7/8" Handlebars
Handlebar Fitment	Standard 22mm	Fits all 7/8" (22mm) handlebars

Specifications

Feature	Details
Throttle Type	Thumb-Actuated Lever
Lever (Spanner) Length	82mm (3.22")
Mounting Diameter	22mm (7/8")
Safety Feature	Built-in Adjustable Speed Governor
Installation	Direct Bolt-on; No extra adjustments needed
Design	Straight Spanner Ergonomics

Key Features

• Built-in Speed Governor: Features an adjustable screw that limits the lever's travel distance. This allows you to restrict the engine's RPM, ensuring small children or beginners can't exceed a safe speed.
• Universal 7/8" Fitment: Engineered as a direct replacement for almost all Chinese-manufactured powersports vehicles, including popular brands like TaoTao, SUNL, and Redcat.
• Ergonomic 82mm Spanner: The 3.22-inch straight lever provides ample surface area for comfortable thumb placement, offering sensitive and stable throttle control across all terrains.
• Quick & Simple Installation: Designed for a "no-hassle" setup; the assembly slides onto the handlebar and secures easily without requiring complex tools or additional hardware.
• Rugged Off-Road Construction: Built to withstand the vibrations and environmental stresses of trail riding, maintaining smooth operation in mud, dust, and rain.