7.10.2014

Part of the Week - HMW127 Sturmey Archer Sprocket Spacing Washer

This week's part of the week... might look weak... but this is truly a special washer in vintage cycling. Sturmey Archer's HMW127 is a sprocket spacer for their internally geared hub sprockets to adjust your chainline from the rear hub. However... it also happens to be the perfect size to space an English or French bottom bracket. Just install it between the bottom bracket shell and the bearing cup... and there you have it. It will move the bottom bracket to the left or right depending on which side you install it on. Works with square taper style and external out-board bearing style.  And many of us know how a poor chainline can wear parts out faster, lead to a noisy drivetrain, and worst of all - cause chain suck.


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