I took my bulls crossover speed in to get the new kiox upgrade and they had a hell of a time getting the new wires through the tube in the bike. took them 3 hours and stye had to tear the headset off and all to do it. only to find the bike wont power on. Now they have to call bosch to get an idea on what's going on. but many its the wiring hassle that may cost a lot more to upgrade the bike then planned.