RockShox Reverb AXS
• Weight: 650 grams (150mm)
• Lengths: 100, 125, 150, 170
• Max Insertion: 225 (150mm)
• Internals: IFP
• MSRP: $800
The wireless Reverb AXS goes for $800 USD, or exactly twice the price of a standard Reverb Stealth with their 1X remote. It's also a smidge heavier than a standard Reverb, at 650 grams for my 150mm-travel model, but you're paying extra for the missing hose, not missing grams. Paired with the post, is a wireless shifter that is very similar to the AXS gear shifter SRAM uses for their wireless MTB drivetrains.
The head of the post contains a tiny motor, gearbox, and electronics that make the post work. On the bottom is a vent valve to bleed off air. The head is adjustable via a tilt screw in the front which also locks it in place and a clamping bolt on the side. All of that aside, the post offers the easiest installation of any dropper we have, just put it in, pair it, and go.
We've had the Reverb AXS on numerous bikes over the last year with zero issues, and the battery has only needed to be charged every three weeks or so with regular usage.
No hose, easy set up+
Easy to set post to exact height desired by feathering remote+
Remembering to charge batteries-
2x cost of standard reverb, 4x some other posts
In conclusion, all of these posts are solid choices for the right rider and each has its benefits. If money was no option and I wasn't worried about having the lowest possible stack height, I'd choose to have the RockShox Reverb AXS on every bike I had...especially if I was the one building the bikes and routing cables. If I was concerned with the lowest stack height possible, I'd look at the OneUp or Fox Transfer. For the easiest to install a saddle on, the Transfer or Crankbrothers Highline 7 both fit that bill. Longest length? OneUp or Vecnum. Looking for the best overall value? The PNW Rainier IR is really hard to beat.
At the end of the day, all of the posts here are so much advanced over their predecessors that it's hard to go wrong with one over the other. Depending on what you personally need, one may indeed be better for you and your budget than the other, so check out the chart to easily compare the lengths, stack heights, and costs to decide what's right for you.