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Seat Sleeve


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

Get your product within five working days. At Bamboo Bicycle Club, we hand pack each kit in our London workshop and ship via DHL.

Feel free to drop us an email for any questions to

Frequently asked questions

Over the years we've had a lot of questions. We've tried to compile all of your questions over here.

For any further questions, reach our team at