1-1/2" OD Steel Threaded Bottom Bracket Shell, Internal Relief: Choose Width

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Manufactured in Richmond, California, USA

Product Details

Material: 1.500" x .083" wall 4130 steel tubing
OD: 1.500"
Width: 0.5 mm oversize to allow for clean up after welding
Relief: On the inside diameter to 1.385"/1.395"
Threads:
- 1.370"-24, right and left hand
- Thread length = 0.50"
- Left hand thread is identified by a radial groove on the face of the shell
- Minor diameter = 1.330"/1.340"
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