- Derailleur brands: Gipiemme, manufactured by SunRace
- Country: Italy, manufactured in Taiwan
- Date of introduction: 1997?
- Date of this example: unknown
- Model no.: 597
- Weight: 323g
- Maximum cog: 32 teeth? (roughly based on Shimano Deore XT (M739 SGS))
- Total capacity: 38 teeth? (roughly based on Shimano Deore XT (M739 SGS))
- Pulley centre to centre: 87mm
- Index compatibility: 8 speed
- Chain width: 3/32”
- Logic: top normal
- B pivot: sprung
- P pivot: sprung
- Materials: largely aluminium with steel pulley cage plates
