CYGNUS (GEN 1~5) Sliding Sheave Set
CYGNUS (GEN 1~5) Sliding Sheave Set CYGNUS (GEN 1~5) Sliding Sheave Set CYGNUS (GEN 1~5) Sliding Sheave Set CYGNUS (GEN 1~5) Sliding Sheave Set
CYGNUS (GEN 1~5) Sliding Sheave Set CYGNUS (GEN 1~5) Sliding Sheave Set CYGNUS (GEN 1~5) Sliding Sheave Set CYGNUS (GEN 1~5) Sliding Sheave Set

CYGNUS (GEN 1~5) Sliding Sheave Set

Stable backshift, smoother drive, cooler belt temps.

This Sliding Sheave Set (movable + fixed sheave) for Yamaha CYGNUS Gen 1–5 refines the CVT’s shift curve and backshift response. Helical cam tracks guide the sheave movement for predictable ratio changes, while a clean contact surface supports belt grip and heat control. Built to match OEM interfaces for straightforward installation and consistent alignment.

Highlights
🔹 Predictable Shift Curve — Helical cam profile supports smooth upshift and timely backshift.
🔹 Stable Belt Tracking — Face geometry helps reduce slip and glazing under repeated stops/starts.
🔹 Concentric, True Running — Machined hubs and bores promote straight, low-friction travel.
🔹 Cooling Support — Broad face area and finish aid heat dissipation to protect belt life.
🔹 Tuning Friendly — Works with common contra springs and belts to target RPM and engine load.

Product Specifications
✔ Outer Diameter: 138 mm
✔ Weight: 1070 g
✔ Type: Sliding Sheave Set (movable + fixed)
✔ Fitment: Yamaha CYGNUS (Gen 1–5)
✔ Focus: Shift smoothness / backshift stability / belt life
✔ Package Includes: Sliding Sheave Set

Installation Notes

  • Verify compatibility with your clutch, belt width, and cover clearance before installation.

  • Keep sheave faces clean and dry; do not grease belt contact surfaces.

  • Set contra spring rate to match target engagement and backshift; recheck roller/weight tuning.

  • After assembly, rotate by hand to confirm free travel; road-test and inspect for abnormal wear.

Power You Can Trust.