NCY Performance Secondary Slider Sheave | GY6 161QMK urbano 200i Nose Diameter (at O-Ring): 30mm

Nose Diameter (at O-Ring): 30mm

we really recommend 1100-1250

relying instead on the mechanical spring-return for safety

and Pug 50 scooters

Super 8 125           Rear

NCY Performance Secondary Slider Sheave | GY6 161QMK urbano 200i Nose Diameter (at O-Ring): 30mmThe NCY Secondary Slider (Sliding Sheave) is a performance rear converter plate for GY6 125cc and 150cc and most 161QMK engines (verify Pulley diameter). Engineered to replace the restrictive stock sheave, this precision machined component optimizes belt movement across the entire RPM range for faster acceleration, smoother backshifts, and immediate throttle response. Why Upgrade to a Performance Secondary Slider? Dual Slot Profiles for Custom Tuning: