BWS100/ZUMA100 Driven Spring
Stable Belt Pressure. Smooth Shifting. Adjustable Acceleration Response.
The Driven Spring for YAMAHA BWS100 / ZUMA100 is designed for riders who demand precise CVT tuning and consistent performance. Available in four tension levels — Blue (1000RPM), Orange (1200RPM), Yellow (1500RPM), and Red (2000RPM) — this center spring adjusts pulley reaction force to fine-tune acceleration and backshift speed. Made from durable heat-treated steel, it provides stable tension and long-lasting elasticity for both street and performance setups.
🔹 Highlights
Four RPM Options — 1000 / 1200 / 1500 / 2000 for precise CVT response tuning
Color-Coded Design — Easy identification: Blue / Orange / Yellow / Red
Enhanced Belt Grip — Maintains consistent drive belt pressure under load
Smooth Downshift Control — Improves throttle recovery and speed transition
Heat-Treated Spring Steel — Ensures lasting durability and performance stability
✔ Product Specifications
Type: Driven Spring (Center Spring)
RPM Rating: 1000 (Blue) / 1200 (Orange) / 1500 (Yellow) / 2000 (Red)
Fitment: YAMAHA BWS100 / ZUMA100
Focus: CVT tuning & acceleration balance
Package Includes: Driven Spring ×1
🔧 Installation Notes
Choose spring tension based on desired acceleration and backshift response
Higher RPM springs increase takeoff force and engine braking effect
Compatible with OEM or modified CVT systems
Verify spring preload alignment during assembly
Power You Can Trust.