GY6 125/150/169cc (161QMK) Performance Secondary Slider Sheave
ITEM# TT-26590
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Description
Performance Secondary Slider Sheave for GY6 Engines
The Secondary Slider, sometimes called the Sliding Sheave, is made for GY6 125cc and 150cc engines, along with most 161QMK models. It works as a replacement for the stock sheave and helps the belt move more efficiently across the full RPM range. It is one of the GY6 scooter parts that can sharpen acceleration, give smoother backshifts, and respond quicker when you twist the throttle.
Why Upgrade Your Secondary Slider
This sheave has dual slot profiles, so you can adjust the RPM torque curve to suit how you ride. The precision machining is meant to prevent belt hang-up and slippage, keeping belt travel steady with no dead spots. Its optimized backshifting also allows faster gear ratio changes, which can help you accelerate out of corners.
Build and Features
The sheave uses two separate guide pin tracks, letting you choose between quick linear shifts or a more gradual engagement. Its steeply angled slits support CVT ratio changes and cut down on lag. High-temperature rubber O-rings come already installed, so fitting it into your scooter is a simple swap.
Specifications
- Slider Plate OD: 141.84mm
- Funnel ID: 34mm
- Funnel OD: 43mm
- Funnel Height: 47mm
- Includes: Pre-installed rubber O-rings
- Manufacturer: ISO 9001 Certified, Taiwan
- Fits: GY6 150cc (157QMJ) engines, GY6 driven pulley
Fitment
Fits:
- GY6 150cc (157QMJ)
Where it goes: part #3 on the driven pulley diagram for the GY6 150cc (157QMJ).
Shop more: GY6 Scooter Parts · Chinese Scooter Parts · Scooter Variators & Roller Weights · Scooter Parts
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