Bike Sales and Repair

Thick Mountain Jumper

Head Tube Area Detail

Against a Pittsburgh blue sky
The Mountain Jumper 's headtube area is not messing around. There are reinforcing rings top and bottom as well as large gussets extending down both the toptube and downtube. The gussets are traditional Bontrager shape except I prefer to weld them fully around for rust purposes. I also think it looks better not to have gaps in the weld. The headtube size is the standard 1 1/8" size.
whole bike view Headtube Seatstay area Disk Brake Mount
pre weld drop outs Euro BB shell

THICK 62 South 15th Street, Pittsburgh PA 15203 (412) 390-3590