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Monday, 28 July 2014

The Homebred 29er is finally complete.

The frame has now been finished, fully brazed up with all the add ons silver soldered to the main frame. I am not 100% happy with the braze as the largest gap I have is roughly 0.5mm (as everything was done by hand and the tubes moved a bit whilst tacing them) but there is plenty of brass in there, so it should hold (we will see after the first test ride!). Thankfully the head tube is perpendicular to the bottom bracket within 0.1deg, also the top tube is 1.4mm off over the length of it, which is nice!

Once the frame was done I went about partially finishing off the joints to make them a bit neater, went over everything with P120 paper and then it was clear lacquered with a 2 part lacquer. This was then taken to a not so local bike shop to get the threads chased, head tube and seat post reamed and the head tube and bottom bracket faced.

I am pleased with the results and am very much looking forward to getting the whole bike built up and ridden!

All in all, it's 2.5kg, which is less than I had aimed for (3kg, at a very high estimate).

Straight 44mm Head Tube
Brake mount
BB-DT-ST-CS junction
Seat stays, seat tube cut out and bracing.
Inside of the brake mount with the bracing
Other side of the BB-ST-DT-CS join.
ST bottle bosses
Under the DT bottle bosses
Top tube - Had to flat the surface and to do that it went through and polished it nicely in patches.
The finished frame.

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