Four Speeds. One Precision Set.
Engineered for the Yamaha Jupiter-Z1 gearbox, this 4-speed Ratio Gear set is precision-machined for consistent tooth engagement across all four gear positions. Each set includes both the main shaft and counter shaft for a complete, ready-to-fit gearbox replacement. Confirm compatibility with your Jupiter-Z1 gearbox configuration before ordering.
Ratio Specifications:
- 1st — 13×33T
- 2nd — 16×29T
- 3rd — 19×27T
- 4th — 20×24T
🔹 Highlights
- Precision-Machined Gear Teeth — consistent tooth profile geometry for stable engagement across all four gear positions
- Full 4-Speed Ratio Coverage — complete gear set covering all four positions for full gearbox replacement
- Main Shaft and Counter Shaft Included — complete shaft set for full gearbox replacement
- Jupiter-Z1 Gearbox Fitment — dimensioned to match Yamaha Jupiter-Z1 gearbox specifications
- Complete Shaft Set — main shaft × 1 and counter shaft × 1 supplied as a matched pair
✔ Product Specifications
- Type: Ratio Gear (4 Speed)
- Fitment: Yamaha Jupiter-Z1
- Focus: Gearbox rebuild / ratio change
- Package Includes: Main Shaft × 1, Counter Shaft × 1
🔧 Installation Notes
- Inspect gearbox casing and bearings for wear before installation; replace if necessary
- Ensure correct gear engagement across all four positions before closing gearbox casing
- Gearbox disassembly and reassembly is recommended to be carried out by a technician with relevant experience
Power You Can Trust.