Thorn Audax Mk1 refurb

[RetroDavy]

Very glad this thread has reappeared as I missed it in 2020. A pleasure to follow the build and see the finished result: fantastic.

 

[JoeH]

Re:


Seatpost - Nitto S83 (I found the seat tube was actually 27mm rather than 27.2 so sanded this to fit)

Hi, could you enlarge with pics or a method on how you did this?
You'll see in my neighbouring thread - Trek MultiTrack 700, that I got a 26.8mm lathed down to 26.6mm.
I could't work out an even way to sand a seat pin down at home - regular drill chuck wasn't big enough.

 

[zerogravitas]

Hi, could you enlarge with pics or a method on how you did this?
You'll see in my neighbouring thread - Trek MultiTrack 700, that I got a 26.8mm lathed down to 26.6mm.
I could't work out an even way to sand a seat pin down at home - regular drill chuck wasn't big enough.

Hey, I would have much preferred to use a lathe for this but didn't have access to one at the time. My current workplace is due to get one in later this year so I'll probably tidy this post up then!

I don't think I had any particular tricks I'm afraid, just put it in a vice and used some coarse paper in strips held in two hands, rotating the post to keep it even. Once I was most of the way there I moved down the grades to smooth up the finish and lose any big scratches that could create stress risers.

 

[PeterPerfect]

I'm selling a lovely 55cm one of these atm if anyone's interested.

I think mine might even be a bit earlier than this one.

One of the best bike renovations I've seen. So glad this was brought back as I missed this one.