The MiGSel mount utilises a RAM ball from there you would still need the parts I mentioned to go from the bike mount to the cradle.
If you look at the image below of the RAM mount, the MiGSel mount replaces the bottom part which is a U-bolt mount designed to go around the handlebars. But MiGSels mount puts the GPS in your line of sight better than the handlebar location, so long as its not too far for the very small screen on the 60C/CS/CSX. The long arm included in this kit will help bring the unit closer to you though it will be more vibey. I find the 60CS is too far way on a MiGSel mount though clearly Gecko doesn't.