Dude,
Here some tips that maybe useful.
Becareful about offer extended warranty, a service agreement, a service contract, or a maintenance agreement or whatever sales dealer said
The important thing is dont spent your money before you check if the company is really solid to deal with it.
Check the price other dealer that offering same deal for compare reference.
Ask about if the bike has high mileage, can you still get an extended warranty within the time contract?
A lot people hear "extended warranty" and think they are protected by a golden umbrella covering all that goes wrong,make sure ask what company will covered it.
May be other members can added more useful inforamtion for you.
Richard