Water Bottle Braze-ons on a Downtube

Adding water bottle braze-ons on a down-tube

You can do this without a jig, but the jig helps to keep the holes 63mm apart. On the down-tube I have good luck drilling the first hole 185mm from the seat-tube. This gives enough clearance for a 2nd bottle cage on the seat-tube that will be added later.

63mm center to center right on the mark.

After a thorough cleaning of the water bottle bosses and reinforcements, its a good idea to double check that the water bottle boss still fits 1/4"

Everything fits up nice and snug.

Oppps...How did that Ridgewood, cinnamon roll get there?  I guess I need to clean that too in short order.

 Everything is cleaned and fluxed and ready for silver.

Post brazing still hot on the rack. It was really clean, so the silver flowed well and now not a lot of clean up. In and out without burning the flux. It pays to spend the time to make sure everything is surgically clean including the brazing rod..

After de-fluxing and given the once over they look pretty good. I suspect I'll fuss over it a little more before it goes to the painter



Mounted and fully functional. Now on to the seat tube.