Bamboo Bike Frame.

Step 7 Build up the bike!

Once you're finally done with all the messy stuff, cut the head tube to size and slide that into the bamboo sheath. Glue it in with epoxy. Glue in the BB shell. Don't get anything on the threads, it will be a huge pain to get the actual BB in if you screw up the threads. I used the leftover head tube stock to "shim" (a very very fat shim) the seat tube size down so normal seatposts would fit.

The rest is the same as a normal bike.

Comments

[adie.mitchell]

Hi,
I'm planning on building  one of these babies, and i was just wondering, how deep does your seatpost 'shim' go? is that what you are going to put the clamp on? 
thanks, 
Adie

[remal boon]

To stop the resin from getting in the threads, how about screwing in the cups from an old bottom bracket? Although most of them have a bit that sticks out an overlaps outside the BB - not sure if this would get in the way. I don't think the threaded plastic bit on the left of some cartridge BBs sticks out (Shimano BB-UN54 etc.). Or anything that would plug the thread up - a large rubber bung, taped up bubblewrap etc. - or instead of trying to block the whole thing you could press plasticine or blu-tack into the thread itself.

[ronmaggi]

Or spray the threads with a mold release.