Jupiter
Jupiter-Z Ratio Gear (4 Speed)
Ratio Specifications:
- A — 13×34T / 18×32T / 18×25T / 23×26T
- B — 13×36T / 18×32T / 18×25T / 23×26T
- C — 13×34T / 16×29T / 18×25T / 21×24T
- D — 13×34T / 18×32T / 21×29T / 21×24T
- E — 13×36T / 16×29T / 18×25T / 20×23T
Jupiter-Z1 Ratio Gear (4 Speed)
Ratio Specifications:
- 1st — 13×33T
- 2nd — 16×29T
- 3rd — 19×27T
- 4th — 20×24T