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Old 05-03-10, 08:53 AM   #1
Shepp30 
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Pin Spanner Wrenches

Gentlemen

I'd like to repack and adjust the bottom bracket bearings on my 89 Bianchi Campione D'italia.

The bottom bracket requires a pin spanner. I am guessing that the green one, the SPA-1, with 2.9mm pins is what I need. However, the adjustable one, SPA-6 has 2.2mm pins. Are there really .7mm differences in some of these hanger cup holes?

Park's site kinds of acts like these are interchangeable. Will either work? Obviously I'd like to purchase the adjustable one but not sure about the pin size difference.
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Old 05-03-10, 09:36 AM   #2
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I have a HCW- ? with the smaller replaceable pins, similar to the SPA-6. When everything is nice and regreased, the smaller pins work just fine. When things are tight, those replaceable pins will bend and snap right off.

Now I own both SPA-1 & 2s, with 2.9 and 2.3mm pins, and my HCW still needs new pins. (IIRC my 4th set)
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Old 05-03-10, 11:44 AM   #3
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Gotcha

So a guy should probably have both sizes. I was kind of thinking to myself that those tools are a pretty rinky- dink looking tool for the pressure that might have to used on the removal of a seized cup.

What the heck were they thinkin when they designed that type of bearing cup? No, I don't want the history I just want to ride the bike but I suspect the bearings are dry.
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Old 05-03-10, 11:50 AM   #4
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+1 Those HCW pins wear out fast, I have gone through a couple of sets in the last year in my home workshop. I think the Parks pin spanner is a better choice.

I recently bought a set of vintage Sugino BB tools off the bay, with a pin spanner and fixed cup wrench. We'll see how that works out.
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Old 05-03-10, 12:30 PM   #5
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Thanks for the advice guys...

Sounds like the HCW is not the way to go then...that means using the green 2.9mm wrench is the ticket ... maybe a couple of them while I'm at it lol.
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