

The bottom bracket is an essential and intermediate element between the bicycle frame and the bottom bracket. Its function is to fix the bottom bracket to the bicycle frame while ensuring a perfect rotation of the bottom bracket. The bottom bracket is composed of 2 cups, 2 bearings and an axle. Different threads exist for bottom brackets, the English thread BSA / BSC, the current standard, the French thread 35 x 1mm, the Italian thread and the Swiss thread
OMAS bottom bracket square axle.
square taper spindle: 12.63 mm
diamètre for the sealed bearings 16.92 mm
for 68s bottom bracket
axle length: 117 mm
weight: 158 g
thread 120x3
material: steel
Made in Italy
condition: new product, old stock, perfect condition
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