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• #5002
Remember the Kona?
4 Attachments
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• #5003
<3
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• #5004
It is some transformation!
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• #5005
I really like this.
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• #5006
Ta. It is turning out alright I think.
New owner has so e blue metallic fizik we are considering... I think it might work in a @Gast๑ຖ🐒 'esque way.
2 Attachments
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• #5007
FC-7800 ❤
Did you take the black anodise off the bars using oven cleaner?
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• #5008
Nope grit 240 emory cloth. Nex step is grit 320-1200 wet sanding and then polish.
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• #5009
Fixed it
3 Attachments
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• #5010
Neat! Do you know what caused the crack?
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• #5011
When I first built the bike (2013) I didn't have a reamer and before being able to borrow one I cycled to Copenhagen and back +200km with seat post only partially into the seat tube. The seat tube is OD28.6 and OD27.2 so really thin wall. It obviously buckled a bit from the distortion.
When I redid the rear end after returning from the UK (2019) I thought my wishbone solution would be strong enough to hold the seat post as the wishbone actually covered the buckle in the tube. But the walls were really thin and the guy who painted it blew threw the tube with his grit. That meant I had to do that quill seatpost solution which was alright initially, but it moved a bit back and forth in the tube. Because the seat tube was already so mangled a new crack appeared from the movement.
New seat tube is much beefier being OD32mm and ID 29.8
Also I don't undcut my filing as much anymore as I did back then.. -
• #5012
That’s a very satisfying repair.
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• #5013
Had to check what you were replying to there - thought you might be talking about sanding down the fillets. 1200 grit seemed a bit keen for that!
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• #5014
Them alu bars 😂
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• #5015
Sloppy job - might sand more
5 Attachments
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• #5016
Internal dynamo routing
1 Attachment
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• #5017
My today's to myself in workshop has been great. I am absolutely knackered but the did get most things done I set out to do.
Best part is that my Surly Nice Rack arrived. I bought it cheap second hand. It is going to tie me over until the cargo bike is back up and running.
All this bike really need now is for a longer cable for the rear dynamo and a pair of mudguards. Not sure what is even available...
4 Attachments
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• #5018
Cargo bike is ready 4 paint... Again...
1 Attachment
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• #5019
Love !
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• #5020
Is that a whole new seat tube down to the BB or did you join it with the old tube part way down? If the latter what’s the junction there looking like?
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• #5021
I replaced 2/3 of the seat tube. Removing the entire thing would be a lot of work as the bottom bracket area is quite busy.
I had an OD31.8mm tube with ID29.8mm. This was perfect for my Zoom 29.8mm seat post that I had no use for otherwise. But because the existing seat tube is 28.6 I had to machine a sleeve I could weld onto the new seat tube that would then allow me to braze that onto the old seat tube leftover.
As @spotter says it is sort of a very long bi-lam
2 Attachments
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• #5023
Nice. Solid work as usual.
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• #5024
Thanks man
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• #5025
Nice work! What's the reason for Tig on top and fillet brasing below?
Yeah exactly. Worked a treat