'73 Schwinn SS

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01-15-13 | 08:19 AM

#26

drker

Thread Starter

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Joined: Jul 2012

Posts: 74

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So is their a 4 bolt adapter that is the preferred over the 3 bolt?

01-15-13 | 11:48 AM

#27

rhenning

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Joined: Apr 2006

Posts: 3,652

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For what its worth this is a 3 piece bottom bracket conversion I did on one of my 1973 SSs. It uses a standard BMX bottom bracket that costs $10 to $20 at most shops and includes new bearings and cups. It is designed to use a tapered 3 piece crank but the bearings are designed to fit standard frame size for a 1 piece crank. You just put it in the BB and bolt things up. No fooling around required. Roger

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01-15-13 | 05:23 PM

#28

top506

Death fork? Naaaah!!

Joined: Nov 2005

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From: The other Maine, north of RT 2

Bikes: Seriously downsizing.

Quote:

Originally Posted by pastorbobnlnh

BTW, the link to Stan Coopers BB conversion on Road Bike Review, can also be found here in C&V. Stan is a regular here and there have been bunches of us who have converted our Schwinn one-piece BB shells. If this is your first, there are a few tricks and there is always some guess work involved. Finding the correct BB seems to be one of the challenges. I've found that the Shimano cartridge BB work best.

I had no problems using the CycleOps (BlackOps maybe?) four-bolt adapter and a Nervar BB from a '74 Superior.

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