I tried these and decided they are not for me. They are in good used condition. These require a 31.8mm stem clamp. The width appears to be stamped on the bar and that is 46cm. This is the width at the bend where the brake levers clamp on. They flair out to 63cm at the ends, measured center to center.
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These are the original version and made of aluminum alloy.
If interested in checking them out, send me your phone number so I can call you to set up a time. Thanks