Sharper CVT Response. Improved Back-Torque Control. Four Tuning Options for GY6 Engines.

This Driven Spring for GY6 125/150 provides four tuning options to adjust acceleration response and back-torque behavior:

• 1000 RPM (Blue) — Slight upgrade from stock; smoother takeoff

• 1200 RPM (Orange) — Ideal balance for daily use

• 1500 RPM (Yellow) — Quicker acceleration with stronger preload

• 2000 RPM (Red) — Maximum tension for the fastest shift reaction

A stiffer driven spring stabilizes belt tension, reduces slip, and enhances CVT consistency—especially useful for upgraded cylinders, heavy-load riding, or frequent stop-and-go situations.

🔹 Highlights

• Four RPM Ratings — 1000 / 1200 / 1500 / 2000

• Color-Coded Options — Blue / Orange / Yellow / Red

• Better Back-Torque Control — Improves grip & shift timing

• Enhanced CVT Response — Stronger takeoff & mid-speed pull

• GY6-Compatible Fitment — Direct install for 125/150 engines

✔ Product Specifications

• Type: Driven Spring

• RPM Options: 1000 / 1200 / 1500 / 2000

• Colors: Blue / Orange / Yellow / Red

• Fitment: GY6 125 / GY6 150 engines

• Focus: CVT tuning, acceleration improvement, stability

• Package Includes: Driven Spring ×1

🔧 Installation Notes

• Choose RPM strength based on riding preference

• Higher RPM = stronger preload and faster shifting

• Verify clutch and belt wear before installation

• Use proper spring compression tools

Power You Can Trust.

Reinforced Alloy Structure. Stable Back-Torque Control. Designed for GY6 CVT Tuning.

This Alloy Driven Spring for GY6 125/150 features a strengthened alloy construction that provides superior rigidity, long-term heat resistance, and consistent performance under repeated compression.
Available in 1000 / 1200 / 1500 / 2000 RPM, it allows precise CVT tuning for various riding demands—from smoother daily commuting to quicker throttle response and stronger acceleration.

The black-coated finish enhances durability and corrosion resistance, ensuring stable performance even during extended high-load riding.

🔹 Highlights

• Reinforced Alloy Material — Higher rigidity & stable preload

• Four RPM Ratings — 1000 / 1200 / 1500 / 2000

• Improved Back-Torque Control — Reduces belt slip & improves consistency

• Heat-Resistant Black Coating — Durable, corrosion-resistant finish

• GY6-Compatible Fitment — Direct installation for 125/150 CVT systems

✔ Product Specifications

• Type: Alloy Driven Spring

• Load Options: 1000 / 1200 / 1500 / 2000 RPM

• Color: Black

• Fitment: GY6 125 / GY6 150

• Focus: Stability, durability, CVT tuning

• Package Includes: Alloy Driven Spring ×1

🔧 Installation Notes

• Select load strength based on desired acceleration response

• Higher RPM = stronger preload & faster shift reaction

• Check belt & clutch components before installation

• Use a proper spring compressor for safety

Power You Can Trust.

Large Diameter, Stable Power Transfer

⚙️ Built for high torque, high RPM, and lasting performance.
The GY6 125/150 Sliding Sheave Set features a 142mm outer diameter and 1085g optimized weight, engineered to increase belt contact surface and improve torque transfer. Its reinforced structure and precision machining make it ideal for riders seeking smoother acceleration, better cooling, and greater stability — whether for OEM upgrades or performance builds.

🔹 Large 142mm Diameter – Enhances belt grip and torque delivery
🔹 Optimized Weight (1085g) – Promotes smoother shifting and high-RPM stability
🔹 Reinforced High-Strength Material – Heat-resistant and built to last
🔹 Fits GY6 125/150 Models – Direct replacement with no modifications needed

Product Specifications

✔ Outer Diameter: 142mm
✔ Weight: 1085g
✔ Material: Reinforced Alloy
✔ Compatible Models: GY6 125 / 150 Series

Upgrade to the GY6 125/150 Sliding Sheave Set for stronger acceleration, smoother transmission, and improved reliability in every ride!