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Bikes for the Hand Made Bicycle Show 2019

21 Mar

The Hand Made Bicycle Show 2019 here in Australia is fast approaching and this year I decided to showcase two frames that span the years of technology. The first one is a traditional skinny tubed frame having its inspiration in the racing frames of the 1960,s and 70,s. It has down tube shifter bosses and a threaded steerer in the fork. I decided to aim this frame at the interest in L,Eroica and the vintage bike scene. With that in mind I decided to fit a pair of S and S Couplers, because if you are going to head across to any one of these events with a bike you will probably want to stay a little longer and have a look around.

S and S coupler

S and S coupler

S and S couplers and machined collars to save the originals from heat

S and S couplers and machined collars to save the originals from heat

Vintage style forks

Vintage style forks

Drillium fork ends

Drillium fork ends

Dragging a bike around with you gets tiresome for both you and your traveling companions. I know this is not a very original feature for a vintage bike, but the idea of cutting up your prized Bianchi or Pinarello without having any idea where the buts in the tubing are is a bad one. To make it easier to disassemble I have also fitted cable guides on top of the BB so you can simply unhook them. Anyway that’s frame number one, and it went off for paint this week

Frame number two is substantially different and on the face of things from another era. I had become increasingly aware that a modern frame has disc brakes. To do discs properly you need to have through axles and flat mounts. Forks made for disc brakes and made from carbon have tapered steerers. This means you end up with a large diameter head tube. My personnel idea is that these are ugly and no one makes lugs to accommodate this yet. They may never because tig welding is more dominate than lugged building I decided to make a tapered head tube lug from scratch. While the diameter is still large at the bottom it is still more proportioned than a straight head tube of the same diameter. This would allow me to use a 35mm diameter down tube and a Columbus gravel fork with a steerer that tapers from 11/4 to 11/8. While this is not as big as some,it does allow a bit more comfort than a 11/2 inc bottom bearing does..I have utilized Bear Components   http://bearframesupplies.co.uk/    through axle dropouts with an integrated flat mount Taking the opportunity here to promote them I have to say they are one of the most helpful companies I have dealt with. I am still working on this frame but it is getting there

Tapered headtube,Lug and downtube

Tapered headtube,Lug and downtube

Front half of the frame in the jig

Front half of the frame in the jig

So, two different frames with a number of firsts for me. I had never used S and S Couplers before. I had not built with through axles before and I had not built a lug to accommodate a tapered head tube before. Despite this I am happy with the way they have both progressed and the one constant in both of these frames is the fact they are both built with steel and most importantly Lugs. I look forward to showing them off on the weekend of the 27th and 28th of April

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Posted by on March 21, 2019 in Uncategorized

 

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