Hi Ian

Me details below. Which size would be best for me. Would prefer to be stretched out a little more. I feel my elbows are a bit tucked in (back) like this.

This would be for a speedmax CF SLX 9.0

Saddle height over BB 797mm
Saddle setback 8mm
Drop from saddle to bars 181mm
Reach from saddle to bars 799mm

SX=133mm
SY=736mm
HY=555mm
HX=520mm

Extension length 250mm
Pad reach 500mm
Pad stack 605mm
Pad height 50mm
Pad offset 20

Let me know if you need any more info.

Phil