I hope this works! Photo's of my front 'bar bag attachment using a "T" bar which fits on 1 1/8" steerer tube. Attached to it is a Topeak bar bag bracket which has a neat, removable little gadget to which you can fix your cycle-computer. As I have plenty of room on the 'bars to fit a computer I cut a narrow (1/4") slot along the length of the Topeak attachment and found that my Blackburn mini-pump snapped in no bother at all!