According to my Cateye Strada Wireless manual:
"Total distance manual entry
................................ Before reinitializing the computer, note the total distance. This reading will later allow you to enter the total distance
manually. Pressing MODE increases the value, and pressing
and holding MODE moves to the next digit."
The manual I referenced is here:
http://www.cateye.com/sites/cateye/u...00W_ENG+v3.pdf
The instructions for manual entry of total distance are on the second page, on the left side, towards the bottom of the page.