Technical & Reference Section > Tech and Restoration

Bent seat tube

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ammacopij72:

--- Quote from: oldschoolace on July 08, 2018, 06:59 PM ---I have a couple of these



https://m.ebay.co.uk/itm/19mm-To-62mm-Car-Engine-Flexible-Shaft-Brake-Cylinder-Hone-Bore-Honing-Tool-2756-/263481728748?nav=SEARCH

The stones are too fine a grit to do anything but polish tubing but I fook them off and glue small strips of emery cloth to the 3 feet.
Work great on seat masts, quick, easy and reach further than you would ever put a post  :daumenhoch:

--- End quote ---


Any specific grade of emery cloth mate?

oldschoolace:
Depends on whats down there. A phone torch is handy to shine down the mast. I have used 120 grit in the past when i had a stuck glasfibre post but would say 180-240 would be a good starting point. Aim to go down the grades so the mast is nice and smooth then you are done
I used a 90 second araldite to bond the emery cloth, holds it well enough but is brittle enough to get off when you are ready for the next grade  :daumenhoch:

Will bung a pic of mine up

oldschoolace:
Here you go  :daumenhoch:

ammacopij72:
 :daumenhoch:

WINI:
Wait till you see my snapped off renthal in an early unstamped GT performer frame  :10_2_12:

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