This very bland, but very decent (and very affordable), B'TWIN derailleur is probably a microSHIFT Marvo LT subtly rebranded. I am hedging my bets because there are so many near-perfect Chinese copies of microSHIFT derailleurs that you would need a DNA test to be sure. But my guess is that Decathlon would use the real thing.
- Derailleur brands: B'TWIN probably manufactured by microSHIFT
- Country: France made in China
- Date of introduction: 2020
- Date of this example: 2024 (box marked 2024/12)
- Model no.: 4914093?
- Weight: 310g
- Maximum cog: 36 teeth (written on the box)
- Total capacity: 45 teeth (microSHIFT Marvo LT)
- Pulley centre to centre: 97mm
- Index compatibility: 8 or 9 speed Shimano compatible
- Chain width: 3/32
- Logic: top normal
- B pivot: unsprung
- P pivot: sprung
- Materials: plastic p-knuckle, aluminium b-knuckle and outer parallelogram plate, steel inner parallelogram plate and pulley cage plates
Ref. 2144
