One of the biggest criticisms of the Triumph Sprint 1050 has been the seemingly woeful headlights. I recently swapped the standard halogen bulbs in mine for some good quality white plasma xenon ones which I got on ebay. The transformation has been remarkable with an estimated 30% increase in light emmision. When I tested them out all the flowers in my garden came into bloom and the neighbours tortoise came out of hibernation. Admittedly I was a bit concerned that the heat might melt the headlamp shell but up to press all seems well.
Anybody else benefitted from this type of modification ?