I'm considering a 936. I have a 100mm hardtail xc bike, and would bring the SID fork across to the 936. I'd love to go to a 120mm fork, but it's an extra $700-1000 to do that. What I'm trying to work out, is which shock to get.
1) I see that the Fox shock has spacers, so a 165x40 would work (or is it 37.5 to get 100mm travel?) and could have spacers swapped to go to 42.5 for 120mm travel in the future (or is it to 45mm?).
2) I see there's a RS Nude off the Genius in the right spaces, but also an RS SID that has more adjustment.
What's got me confused, is which tune version of the shock is best? And would the extra adjustments of say the SID enable more tuning and result in a better ride? I've had a Fox on a bike that wasn't what it came with, and had the wrong tune and air can volume for the frame, and could never get it to perform how I'd like until I did volume spacers.
So, anyone able to help? RS Nude, RS SID, Fox (and I think there's a few versions of them), and what factory tune is best?
Thanks
(80kg, xc to light down country riding).