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RGF Bottom Bracket Shell

Last Updated On March 07, 2019
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This type of bottom bracket shell was first used by the SBDU on their Reynolds 753 and 531SL frames.

The RGF BB shell was used predominantly on Metric Reynolds 753 and Reynolds 531SL frames from the introduction of these tube sets to the public in late 1975. There is also a very small percentage of Metric 531 Professional and Metric 531c frames that use RGF shells.


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