The top clamp width is 50mm narrower than genuin.
This clamp makes it possible to have super narrow shape of handlebar out line.
Clamp and handlebar sets are also available in good deal.
There are 3 types of clamp depends on type of top bridge.
Standard: Top bridge with concave for rubber mount.
Flat : Top bridge without concave for rubber mount like '04up sportster.
Springer : Springer fork (inline type)