Hey guys, been wanting an Outback forever after paddling an Emotion stealth angler for about 12 years and I finally got one this evening.  So I'm new to the peddle game, are there any drive parts I should keep on hand as spares in case something goes wrong on the water that I could do a fix with?  I know I'll have my paddle still.  I'm fairly mechanically inclined.  Should I have any concerns with a certain part of the drive that may potentially fail at some point?  Thanks in advance.

The problem with buying Mirage Drive parts is that most Hobie owners never have any portions of their Mirage Drive fail, so you are likely to end up with a bunch of parts which you will never use.  Or the drive part which does fail will be a part which you didn't buy.

The Hobie kayak part which I have had to replace several times is steering and rudder lines.  I just had to replace the rudder down line for the twist and stow rudder on my Revolution for the third time.  I keep about 20 feet of replacement line on hand, and bring it with me on multi-day fishing trips.

I'm still running with the Mirage GT drive. I try to keep an idler cable, at least one chain, and a sprocket+mast setup in my spare parts stash. If/when you break a mast, it usually snaps where it screws into the sprocket. When that happens, you need to replace it with a new sprocket and mast.

Haven't broke anything else on these drives...yet. Oh yeah, and Workhard is spot-on with keeping a 9/16" combo wrench on hand for adjusting cable tension. I have one in my truck at all times  .

stainless nyloc nuts for the cables should be replaced periodically if they have been adjusted or removed.  worth keeping a few spares of those around. 

Less of a spare part for the drive, but more of a spare propulsion means...dont forget your paddle!

Man, either I've been lucky, or I don't punish my boats as much as you guys!
I have yet to replace anything, on either of my Outbacks.
Have had the 2007 for a decade I think? Possibly more...
One day in it, early on into my ownership of it, a set screw started to back out of one of the fins.
Luckily I had my Leatherman on me that day. Ever since, I have carried the appropriate size Allan wrench in that boat, but have never had to use it again. I will need to replace some of the worn out bungee straps soon, but no biggie there.
Other than that, one of the screws attaching the right inside handle to my 2021 stripped. I just don't lift it by that one now. Have yet to examine if it is actually the screw that stripped, or the little brass socket it screws into.
Reading about your guys' posts makes me worry, maybe I need to pick up some parts...