i had the exact same problem when installing mine about a month ago. Lowbeam H7 looked exactly like yours. Confirmed it was an h7 bulb and called ddm about it just to make sure i had the right bulb. What i ended up doing was using the little blue spool from teflon tape, trimming it a bit, and installing it over the bulb with the spring retainer applying pressure to the spool. Kind of a hack job, but it's holding the bulb in there good and hasn't budged in about 1k miles of riding. Just read last night on the forums that a member had same problem, called ddm and they forgot to ship a spacer for the bulb (which i think is what we're missing). I called ddm yesterday and the guy said he has never seen a motorcycle need a spacer for the bulb, but is shipping me one anyway