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Item # RSX000M

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  • Black, 30.9mm diameter, 355mm length, 100mm travel, left ($259.95)
  • Black, 30.9mm diameter, 420mm length, 125mm travel, Left ($259.95)
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Item # RSX000M

The best just got better.

It's well known that dropper seatposts are changing the face of mountain biking. And as you probably know, the RockShox Reverb has emerged as a leader in this field due to its weight, 150mm of adjustability, and smooth action. However, the Stealth version, featured here, builds on these strengths by improving the cable routing.

One of the more immediately noticeable features of the Reverb Stealth is its actuator button. Exclusive to RockShox, the hydraulic actuator system provides smooth control over your saddle height. When we first heard that the Reverb employed a hydraulic remote, we were dismayed at the thought of bleeding a seatpost. However, the Reverb has proven to be so smooth and reliable that its hydraulic remote has come to be one of our favorite features. And while the competition's cable actuated posts seem simpler on the surface, clumsy levers and gummed-up cables have made us thankful for the Reverb's buttery, push-button actuation.

The Reverb's hydraulically controlled air spring keeps the post compressing and extending with the same freedom of movement as a well maintained suspension fork. And unlike most of the available dropper posts, you're able to lock the Reverb at full height, full bottom, or anywhere in between. So, you won't have to struggle to find the correct seat height while you're ripping down the trail.

The cable routing is what sets the Reverb Stealth apart. By routing the cable through the seat tube, rather than off of the head of the seatpost, RockShox eliminated the large cable loop found with most dropper posts, including the standard Reverb. Attaching the actuator cable to the head of the seatpost creates a loop of excess housing, which requires careful cable placement to keep that loop away from tires and suspension linkages. The Stealth solves this problem by running the cable through a hole in your frame. Many modern frames are built with "Stealth" routing holes already installed, and older models are typically able to be modified for fitment by a qualified bicycle mechanic.

The RockShox Reverb Stealth Seatpost is available in 30.9, 31.6, and 34.9mm diameters and with either a 125 or 150mm drop. Seatpost lengths run 380, 420, and 430mm. And just for clarity, the Reverb's hose length is 2000mm.

  • Hydraulic hose routes through the seat tube
  • 125 and 150mm lengths
  • Infinite adjustability
  • Two-bolt head

Tech Specs

Recommended Use:
all mountain, trail
30.9 mm, 31.6 mm, 34.9 mm
380 mm, 420 mm, 430 mm
Actual Weight:
Black, 30.9mm diameter, 420mm length, 125mm travel, Left: 570g
Manufacturer Warranty:
2 years

Reviews & Community


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Dropper Is A Real Game Changer

  • Familiarity: I've used it several times

I added one of these to my Medium SC Bronson. The 355mm length and the 100mm of travel are perfect for me being 5'6" and 150lbs. The full hydraulic action is super smooth and incredibly useful when riding varied terrain. When dropped the seat is fully out of the way, and then at the push of a trigger It's back up to a great climbing position to be able to attack even the longest and most technical ascents.

Once you drop you'll never stop

    Really love my Reverb. The first post had sag problems, but RockShox replaced it for free. No problems with the new post, so they have the kinks worked out. I still have an issue with the top ring (pictured) backing off from time to time, but a big wrench takes care of that issue. It will take your confidence to the next level. I don't think I'll ever be able to ride a big boy bike without one again.

    Once you drop you'll never stop

    Not impressed..

      Have only been using this post for one and a half seasons and it is already at a point of needing replacement. It already has the suspension effect sag going on with it. positive is that it works great on the bars with other sram products. Looking into other products for the future.

      Saddle Height Adjustment on the fly

      • Familiarity: I've used it several times

      It's not a necessity but it is nice for more aggressive riding styles. Quick connect for hose is very convenient for installation. Seatpost comes with reverb oil and syringes. Dial at lever allows you to adjust the speed of the return on dropper. If you are setting up a one by system on your bike you can reduce your bar clamps by using the lever for your left brake lever. I found myself adjusting my seat height more often on a ride. It makes riding switchbacks and technical terrain more confidence inspiring being able to get the seat out of the way.

      Do it right

      • Familiarity: I've used it several times

      I chose the RockShox Reverb Stealth dropper post for my Santa Cruz 5010. It just doesn’t make sense not to have a dropper post and I had no idea. You do hear about the issues that come up with the droppers but all in all it is way worth it. As with everything in the cycling realm you want to keep your bike mechanic friend close.

      Do it right
      Unanswered Question
      Avg. ride time: 5h 23m per week
      • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

      When are you guys going to have the new reverb in stock?

      what is the minimum height of the post when fully extended? (equivalent to the height fully extended when slammed against the seat tube, or the height from the bottom of the ring in the middle to the top of the post) tks!

      found another site lists the stack (top of seat tube to seat rail - fully inserted and extended) at 215mm for the 150mm model and 190mm for the 125mm model.

      Installed on Juliana Joplin

      • Familiarity: I've used it several times

      I took my time but was easy to install on my wife's MTB (which was also bought from BackCountry). Even with tight,internal hydraulic lines, I left enough play to allow 3 or so Inches of Frame/Post adjustments. So much nicer than my mechanical, non-stealth Giant dropper post.

      Do these come with the connectmajig?

      Hey Derrick,

      The RockShox Reverb Stealth Seatpost comes with everything you need to install it on your bike frame, as long as your frame can accommodate stealth routing. By connectmajig I am assuming you are talking about the handlebar lever or maybe the seatpost clamp? Feel free to contact me directly if you have additional questions on the RockShox Reverb and I would be glad to help you figure out if it comes with what you need,


      The connectmajig is a quick release collar that connects the hose to the bottom of the post. This is so the post does not have to be bled every time the post is disconnected.

      So far some reverb stealth does come with it and some do not.

      I have not been able to identify those with this and those without the connectmajig but if you google the word you will see exactly what I mean.

      Hey Derrick!

      These guys ARE shipping with the connectmajig.


      Unanswered Question

      How difficult is this product to service by a consumer? Is there a rebuild kit available? What is the turn around time for warranty repairs?

      Avg. ride time: 45m per week
      • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

      Get a dropper

      • Familiarity: I've put it through the wringer

      This review is less about the Reverb in particular, and more about dropper posts... GET ONE. I've been guilty of slight weight weenieness in the past, and considered a dropper a luxury for downhillers that's not worth the weight going up, but now I see the light and won't build another bike without a dropper. The mobility you gain on the downhill by getting the saddle out of the way is a big boost to your confidence and fun factor.

      Luxury? It's a necessity

      • Familiarity: I've put it through the wringer

      I could switch out a lot of components on my bike without much second-thought, but not my Reverb Stealth. I'd put up a good fight to keep it on my bike.

      I was surprised how much of noticeable weight was added to my aluminum frame Bronson. Honestly, I could offset the weight by losing a few pounds myself.

      I'm addicted to the added benefit and you will be too! I put the 30.9mm diameter, 380mm length, 125mm travel, right on my Santa Cruz Bronson

      Avg. ride time: 17m per week
      • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.


      • Familiarity: I've put it through the wringer

      I think the argument whether or not dropper posts are a good or worthy development in mountain biking has been settled (they are), so I’ll spare you and say that I’ve had two Reverbs and have never needed to service or warranty either. I’ll also re-iterate JTrue’s Pro-Tip as I made this mistake once: Order the right hand version and mount the clamp on the left side upside down. Keeps the remote trigger protected

      I have seen a few come back through the shop and have had good luck getting rockshox to replace them.

      So far so good

      • Familiarity: I've put it through the wringer

      As most other reviewers have mentioned, the upgrade to a dropper post is AWESOME. Definitely the best upgrade I've ever made to a bike. This post is easy to install and you probably won't have to re-bleed the hydraulic line as part of the install as long as you're careful. I'm about a 4/10 in terms of mechanical savvy when it comes to my bike and I was able to install this in about 15 minutes with no hiccups. One thing to watch out for is the torque spec on the seat collar. If you over tighten the collar you can cause the dropper post to jam up a bit and get choppy on the rebound. Backing off the torque on the seat collar a little bit clears up the issue.

      As far as the function of the post is concerned, I've been pretty happy. I've had the post on my bike all summer and I haven't had any major issues. The rebound speed is easy to adjust and the post still locks in solid without any up/down or rotational play. The one thing that I have noticed is that if I leave my bike sitting for a while between rides, the dropper can get somewhat stuck in the 'full up' position. I've never had it totally stuck, but have had to push extra hard the first time to make sure the post drops correctly and smoothly. Not a deal breaker yet, but does give me a little bit of pause about how long it will be before I need to get it serviced.

      game changer

      • Familiarity: I've put it through the wringer

      these things seriously make a world of difference, one day all bikes will come with these (i hope) but for now if you have the extra cash laying around, GET ONE! no more stopping on the trail to adjust a seat post. its all at the finger tips.