ORBO Le Klunker de Acatène

[BartRidesEternal]

The Manitou crown gets a new CroMoly neck:

Remove a bit from the tube, since its 30mm diameter. The crown is 28.6mm. There is a extra bush pressed inside now to compensate the loss of the CrMoly headtube.
Pressed with loctite 601.

One side has M5 thread and a screw, just to be sure.

 

[BartRidesEternal]

The fork 'leg holes' are 28,6mm. The CrMoly tubes are 28mm....
I found a old steel cigar box which had a wall thickness of 0.25mm
I cut it out, over the full height of the fork hole and glued the outside with a strong, flexible sealant.

Now the fork legs can slide in and out! And can be properly clamped!

Hydraulics

Left there to dry with some leftover 28mm tubes in there.

Now to fabricate a dropout. I'm no expert on cool retro-fork-dropouts, maybe @Captain Awesome ?
I saw these cool speedholed BMX fork dropouts!

I'm thinking about 50mm fork offset.

Sad sketch on my steel plate


For the final braze, I'm waiting for a piece of aluminum. Then I can fabricate the left rear dropout with an hacksaw and file and get all the braze-ons perfect!

Rear dropout will be 144mm (I chose a symmetrical rear chainstay, that how wide it is then). The sketch gives a impression of the bushes that need to be fabricated.
The wheel will be laced off-centre as the sketch shows.

I will utilize a 32 hole Histop coasterbrake hub, I have a new one lying around.

So I'll need some bushes that can distribute the load.

The hub with the sprocket. Large washers act as temporary spacers.