For one a 17 front is huge, but if you insist use two master links and add a length between the two. I run a 16-45 on a +12 arm so i have to run a 120 plus an extra 6 links with two master links.
I run then on both of my bike just because everyone talks shit about them. But if your bike didnt come with one dont buy one it doesnt make a difference either way.
What kinda riding do you plan on doing. I have all the factory gussets cut out and the piece in front of the motor cut right above the motor mounts. Ive launched it off the top of comp hill in glamis and cart wheeled it down the drag strip and its still straight. What im trying to say is the stock frame is pretty strong.