Seen it done on a few bikes of late. You obviously don't need the more expensive kits that negate any CANBUS errors but the better kits tend to use smaller ignitors which help with installation.
Beware though......There are changes afoot from January which will outlaw any aftermarket upgrades to cars, trikes etc. Basically use and construction states that where fitted, the headlights need to be self leveling and have washer facilities.........
The new MOT rules are a bit sketchy around motorcycles but there's a fair chance that once clarified you may be taking them off
