Here's my first attempt at a scratch build frame
My idea was to build a bike from box section steel.
The main design points I wanted were, no down tube, a low top crossbar height, 80mm wide rims and something unusual for the forks
I ended up using 40mm x 40mm and 40mm x 20mm steel and some 32mm round tube for the handlebars
The only parts I used of an existing bike are the bb shell, head tube and fork tube.
The steel
The rear hub, a Sturmey S2C
The front Sturmey track hub
Cranks
The donor parts
Hubs and rims after I laced them up
Start of the forks
Completed
Start of the frame
Lower rear stay
All welded up
The finished product
Rides well, gets a bit of attention haha
My idea was to build a bike from box section steel.
The main design points I wanted were, no down tube, a low top crossbar height, 80mm wide rims and something unusual for the forks
I ended up using 40mm x 40mm and 40mm x 20mm steel and some 32mm round tube for the handlebars
The only parts I used of an existing bike are the bb shell, head tube and fork tube.
The steel
The rear hub, a Sturmey S2C
The front Sturmey track hub
Cranks
The donor parts
Hubs and rims after I laced them up
Start of the forks
Completed
Start of the frame
Lower rear stay
All welded up
The finished product
Rides well, gets a bit of attention haha