The super strong forged double clamps are designed to match this new ht collection high quality euro certified 6061 aluminum with steel inserts to withstand all the abuse a rider can hand out these clamps are as light as double light clamps from the s series still includes a free shim for fitting standard and oversized bars no printing on the clamp but instead a high end engraving of our d logocertified 6061 aluminium with steel insertsd logo engravedshim so works with oversized and standa