Trailtech computer on 400ex ?

[RazBarlow]

Does anyone have the trailtech computer on their 400ex ? I was just wondering how accurate it is and how well it worked ? How does it calculate speed and other measurements ? Are there alot of wires ?
I am wanting something to keep track of maint. items and service due time.
Thanks,
Raz

[RazBarlow]

What are the pluses and minus's of the endurance vs the vapor ?

vapor seems to have a lot more useful and cool things