Prototyping Bike Dropouts

I want to build a custom bamboo bike frame. The essential pieces for the frame besides the bamboo includes a metal head tube, a metal seat post insert, a metal bottom bracket tube, and the metal rear tire dropouts. To keep things simple, I will make a track bike which has different styled dropouts than a road or mountain bike. Since my bike frame geometry may be unique for a track bike, and since the dropouts have to be longer than average in order to attach them securely to the bamboo seat and chain stay tubes, I decided to make my own dropouts.

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