Main Motorcycle: 2010 Bonneville T100
Join Date: Mar 2010
Location: Philadelphia, PA USA
Other Motorcycle: 2007 150cc Retro-scooter
I don't use a dedicated helmet lock, I have a retractable cable lock sold for travel, a Master Lock Trimax. About 3 feet long, setable three-digit combo, I run the cable through the visor on my full face and through a convenient bar or the top handlebar clamp (I have a dogbone). It also lets me remove my armored overpants and jacket and lock them up too.