Our 27.2mm/31.6mm sleeve is perfect for bamboo frame building. Narrow enough to fit inside bamboo which will be compatible with a front derailleur. You can also use a dropper post or any standard 27.2mm seat posts. Knurled for longevity as without it can easily debond.
- 27.2mm/31.6mm internal seatube
- 30mm outside diameter
- Requires a 30mm seat clamp
- A tolerance of +0.25 mm (.010″) – 0.5 mm (.020″)
- Knurled to improve bonding.
- 130mm in length
- Made from 7005-T6 aluminium tubing
- Manufactured in the UK