These fit the stock 1" diameter bars.  These are our design, made with customer input.  They include nice machined, matching top clamps.
     These move the bars back .700" and up .400'.  This is as far as you can comfotably go and not have problems with the cables being tight.
       If you want to run the stock bars, this makes the seating postition MUCH better for you, as your back further and more upright.  This may be the single best thing you can do to make riding and comfort nicer.  You do not need to lengthen cables