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RockShox Reverb B1 Dropper Seatpost (discontinued)

Average User Rating: (Excellent)
RockShox Reverb Stealth
 RockShox Reverb B1 Dropper Seatpost  RockShox Reverb B1 Dropper Seatpost
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Redemption of the Reverb

Rating: Featured Member Review
The Good:

Effortless initiation. Smooth motion. Durable!!!

The Bad:

At $471, the price could turn some people away.

Overall Review:

I’ve owned a number of RockShox Reverb Stealth (A2) dropper posts and it seemed that the durability declined with each one I got. This got so bad that I contacted my LBS and filed a warranty replacement (on a post that was less than 2 months old!) Sram sent out a replacement Reverb Stealth and to my surprise, it was the new B1 version.

For those new to dropper posts, the RockShox Reverb Stealth was known to be one of the best performing and smoothest dropper posts out there. Many people began to experience issues with the Reverb’s durability and performance. The most common issue was a defect on the main seal which allowed air to get into the chamber. This issue caused the post to involuntarily compress (up to 1 cm+) when the rider was climbing. This spongy feeling would later lead to even more issues such as causing the post not to reach it’s full extended position. Both issues were completely unacceptable of a dropper post that cost more than a set of new car tires.

Addressing this issue, RockShox supposedly redesigned the seals etc of the Reverb Stealth (A2) to make these issues cease. This is why I was so surprised and excited when I saw that they replaced my older A2 version with the B1.


Out Of The Box

The first thing I noticed when pulling the Reverb Stealth (B1) out of the box was how it looked nearly identical as the precious version minus a new ROCKSHOX decal printed on the stanchion of the post. (Note: That is the only way you can tell that the Reverb is a B1 instead of a A2 version without taking it completely apart.)


From the remote, down to the black “Connectamajig” (yes, that’s really what it’s called) there is very little difference on the outside of the post.


Installation only took 15 minutes. After installing the post on my bike, I noticed how easy and smooth the post was to rise and lower. The major improvement I saw was very little, if any, involuntary compression when applying pressure on the post without hitting the lever. This was a HUGE difference from the A2 version which had up more than 5mm of compressive play right out of the box.

On The Trail

I’ve only had the new B1 version Reverb Stealth on my bike for 3 months so (~75 hours of riding) this certainly isn’t a “long term” review. However, comparing the performance of the B1 to the A2, the B1 is still performs as if it was just installed out of the box. That’s a lot different story with my experience on the A2.

Couple Of Other Things To Consider

Because the Reverb Stealth (B1) uses hydraulic fluid, the speed of return can be effected. This has yet to cause a deal-breaking issue for me. If you live or ride in colder climates or if you are putting one of these posts on a fat bike that will be used in the winter, I would recommend cooling your bleeding fluid in the freezer and then quickly feeding it through the remote line. This will help keep the speed of return from becoming too slow.

If you are experiencing any functional issues with this post, first check the PSI that it is at 250 and then re-bleed the remote line. If the issue continues, swing by your LBS and they can determine if it’s a warranty issue.

If you want a 150mm or 170mm dropper but the post wont lower all the way into your frame, you can remove the black “Connectamajig,” snip off the gray end of the hose, and thread on the Reverb Hose Barb in it’s place. This will allow you to lower your post at least another inch into the frame.

If you’re experiencing that spongy compression described previously and if your post has more than 150 hours on it, chances are your Reverb will need to be rebuilt. Sounds like a scary thing but given the proper tools and keeping your cool, anyone can service their Reverb at home. Below is a video showing, step by step, how to rebuild your post:

For All You Weight Weenies

Below are the weights of the Reverb Stealth (B1) with a 150mm x 31.6 configuration.



Bottom Line

When RockShox announced they were re-engineering the internals of the Reverb Stealth I was anxious to try it out. After 3 months of riding on it, I am pleased to say that the new internals have made the Reverb great again. It is, in my opinion, the smoothest and easiest remote dropper on the market and with the new improvements, one of the most reliable ones too. If you want the best of the best and price isn't a factor, give the new Reverb Stealth (B1) a serious look.

Unsure of the genuine advantage

The Good:

From brand new, the post is flawless, the thumb actuation is stiffer than some cable actuated posts but it’s smooth and positive. Nice and tidy on the bars too. The post goes up and down at an adequate (and adjustable) speed and it’s pretty solid when up.

The Bad:

I know two riders who’s posts don’t go all the way up, and sink, and one who’s doesn’t o up at all. The unnecessary hydraulics mean self fitting and shortening of the hose is tricky or not possible at all. And there really isn’t much benefit.
Cheaper options from brands such as KS seem to require the same if not far less maintenance, and perform just as well, but for less money
The top sticks out a good inch too which is more than other competitors too, which can be off putting on some longer seat tubes.

Overall Review:

When the reverb works, it works. It does the job well, and looks clean. It came on my bike and I’m happy with it.

However the hydraulic actuator never made sense to me. It doesn’t provide much advantage considering the difficulties shortening the hose etc brings with hydraulics

Plus if you snag one in the woods, or it starts to loose pressure, leak or get bubbles in, you can’t just spend five or ten bucks and throw a new cable in.

Again I’m not saying it’s bad, but I have owned a KS Lev in the past which was much more easier to fit, required less Maintainance, pertruded from the seat tube less and was far cheaper. That or the KS e30i would be my choice if it was my money. 

B1 reverb 2016

The Good:

Reverb lever actuator has nice feeling.

The Bad:

Needs occasionall bleed (after replacing remote seals the intervals are longer).

The lever needs service also unlike cable levers..

The droper develops noticeable sag every half year -year (depending on riding).

High stack height - if you want every cm of range of motion there are better options today.

Overall Review:

Own the b1 version for two years and serviced it twice and the remote lever once..

Overall the dropper works but needs service like suspension.

Great Dropper Post

The Good:

Low maintenance, improves ride experience, will change the way you ride if you have never ridden with one.

The Bad:

Price, weight, hit or miss reliability, the lever ergonomics (but I guess they just changed that recently).

Overall Review:

I am on my 3rd Rockshox Reverb dropper post. I am NOT on my 3rd post because of problems but on my 3rd post because of bike changes.  Everyone I have had has always worked flawlessly.  I did demo a bike once that had a faulty one but I imagine they were not well cared for.  The post MSRP is expensive but if you do some research on the interwebs you can find them for cheap or check online for new take offs.  The price is a bit high but on par with other similar dropper posts.  It does add weight to the bike but what dropper post doesn't!  I like the fact that this post is hydraulic, it means it is a sealed unit with less chance of contaminants from the elements.  I don't want to deal with cables that stretch and have to be replaced all the time.  That being said, I love this post, it has changed the way I ride and I will not own a bike without one (except a DH bike). 


Product RockShox Reverb B1 Dropper Seatpost
Riding Type Cross Country, Trail, Other
Seatpost Type Dropper
Interface Railed
Remote Adjustable Yes // Adjustable return speed at the handlebar remote, Discrete or Match Maker X, left or right
Diameter 30.9mm, 31.6mm, 34.9mm
Travel 100mm, 125mm, 150mm, 170mm
Length 340mm, 390mm, 440mm, 480mm
Tilt Adjustable // Zero offset
Materials 3D forged 7050 alloy shaft // 7050 forged alloy head
Colors Black
  • 1 lb 2.3 oz (520 g)
  • 1 lb 3.8 oz (560 g)
Miscellaneous *Reverb weight based on 340mm post length, 30.9mm diameter, 100mm travel, MMX™ remote with shifter hardware and 1300 hose

**Reverb Stealth weight based on 340mm post length, 30.9mm diameter, 100mm travel, MMX™ remote with shifter hardware and 1300mm hose

The B1 dropper post features completely redesigned internals with new SKF internal floating piston,
improved performance and durability, increased bushing overlap, and new dedicated post length per travel length. Available with internal and external cable routing options.
  • $299
  • $349
More Info

RockShox website

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