Won't affect brake lights unless you are using LED bulbs in orig tail light. Indicators, well you can wire a resistor on each unit, keep the orig bulbs still wired in under the seat, or fit a digital flasher unit. Makes are available for most bikes and are usually an easy fit. Plus you dont need to change flaser can back if you go back to orig indies.

http://shop.2wheelsonly.co.uk/led-in...lay-1738-p.asp

Ade