Technical & Reference Section > Tech and Restoration

Restoring my Peregrine 48's

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GavinDavis:
Nice job of the polishing!  Thats turned out pretty damn sweet!  From what I remember youre gonna need 184mm spokes but dont take my word for it.  There's a thread on the museum that has loads and loads of spoke sizes for various rim/hub applications if you cant measure your own....do a searchy and thee will find :).

laidback:
well, whilst the mrs was out at the cinema, i cracked open a beer and polished up the rear hub. Getting quite good at this polishing malarky. I hope the rims turn out nearly as nice.

Quick newbie question- are these hubs classed as 'high flange' hubs? i'm guessing they are?...

Results:

Before:


After:

oldskull:
 :daumenhoch: Look good! I got pair of hp48 ready for rebuild too. This thread will give me the idea for winter project! Thanks for sharing!!!  :daumenhoch:

laidback:
Afternoon all,

Well I've done a bit more on these recently. Having read Sids resto guide, I gave them a bath in Caustic Soda to remove the anodising:

x

Now this is stripped I have noticed some pitting on the brake surface of the rim. I think this may have been caused by the caustic soda:



Slightly annoying...I'm guessing the only way to remove
These is to use course sandpaper and work my way back up whilst polishing? Just wondering if anyone else has experienced this and how they got rid of the marks?

Seems like a lot of hassle! I guess they'll be worth it in the end!

oldtired:
just out of interest did the rims discolor after the caustic bath either brown or black ?

 i take it you dipped em after you rubbed down the brake surface , seems unusual to get pitting on an already flatted off surface , bare alloy will discolor almost straight away in caustic and the anno finish should dissolve long before pitting  starts,    you should be left with a smooth surface under the discoloration that will polish up by hand pretty well.

some one might know if  hp rims were hard anno?

 if that's the case then some hard anno will not come of with caustic you have to use abrasive to get it off before a caustic/ acidic clean,  or have em  re anodized professionally

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