Frame option: BOX GUSSETS

This is a 3 piece gusset I frequently use to strengthen headtube junctions or for reinforcing seattubes for dropped toptube designs. I call it a box gusset because the inside is hollow, making a stiff structure. Some people have asked if it is just two side plates with the middle filled with brass -- not the case, doing it this way is significantly lighter and reduces the heat affected area.





Another version:





Some finished products: