No no no no (or should I say "nay"?).
Pure race fork only, though I don't see the use. Grip1 is better at everything, except maybe having a slightly less firm lockout.
I love the 130, and that is what Trek is now speccing, but I built it that way from the get go. Never rode it with a 120.
Yup. Fox keeps getting the Fit4 better, but it still isn't truly good. I got my Fit4 Stepcast 120 to work pretty well on my Supercaliber, but it took lower than recommended pressure and a couple of volume reducers.
Even then, the new Grip1 works so much better for me anyway.
Yea or Nay works (I always win?)
I mostly hated on the grip2 on the Fox 36 that came on my STEVO, but I largely don’t like fiddly stuff because you just end up fiddlying the fiddly stuff.
Also, the 34 is not the 36, and at least in my limited experience, Fox has seemed to be able to better dial in the shorter travel 34. There are a lot of lightly used 34s that are takeoffs as people go bigger travel and those are mostly Factory Grip2.
I
could just do a different bike, but my problem is that I spend a decent amount of time on long gnarly descents off the front range in particular and some stuff in Crested Butte that is less gnarly and more endless brake bumps on really fast terrain that also has a lot of what I like to think of as ‘weird tech’ because erosion is the primary actor on those trails often as they get steeper.
That’s why e-bikes will probably reign for that kind of usage over time, because you either have to pedal up the big bike, in which case a relatively light Stumpy Evo hits a lot of marks, or you have to deal with the inability of the bike to sort out the terrain when you are going faster than you probably should be. Anyway…
My final math in going 140 on the 34 (besides it’s probably dumb to go any less):
Current: 170mm 27.5 Mezzer axle to crown: 574mm
Fox 34 140mm axle to crown: 547mm
27.5 to 29” rim: +18mm (axle to ground radius increase)
Total: 565mm
There’s some effect of increasing the slack of the front end up to 64.5 as well, so it should be pretty neutral outside of maybe a 5mm handlebar spacer moved from under to over.
Is it the bike or is it the travel? This is a a good science project and I’ll buy the fork second hand so I’m not dumping any additional depreciation if all I’m doing is ‘the 150 and 125 Spectral are the same bike except one sacrifices travel for no particular reason’ project.