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I went to sit on the bike and the post dropped 60mm or so. Wouldn't go back up, but you could pull it up and down with a clonking noise. Just pulled the post out and it looks like this. Is this the circlip failure problem? Best place to get a replacement?
Next problem is identifying the post. Everything I've read says that if you have a black speed adjuster and a gold Rockshox logo at the top of the post, you have a B1. My logo is white - is it still a B1?
I’d guess you have an A2. You can get a circlip here
https://sprungsuspension.com/product-category/seatpost-parts/
and probably other places, I just remembered Sprung because they do a reasonably priced Reverb service kit
Thanks - don't think it's an A2 as according to SRAM neither the A1 or A2 have a logo at the top of the post. I guess it might be white as opposed to gold because it was OEM - came on my Jeffsy.
I think you are right, B1 if it has a logo on the post according to the service videos. They don’t mention colour
OK, I've ordered a B1 circlip from Sprung Suspension. I'll see how that fits.
I am wondering where all the bits of the original have gone though - I held the bike upside down and shook it but nothing came out.
Probably just stuck in the bottom of the tube with grease/oil mud. Do you know if the seattube's open into the BB shell?
This happened to me.
Didn’t find the remnants of the circlip until I stripped the frame down to sell.
It had pretty much disintegrated!
OK, I’ve ordered a B1 circlip from Sprung Suspension. I’ll see how that fits.
For the cost of a circlip and postage, I would have ordered all possible variants "just-in-case"...
Where do you keep your bike, in the canal.😀
A B1 circlip will not be safe to ride in an A1/2 post. Not sure it will hold at all, and if it does will give way again soon
A B1 circlip will not be safe to ride in an A1/2 post. Not sure it will hold at all, and if it does will give way again soon
Just as well I'm not putting it in an A1/A2 post then.
This happened on my brothers Whyte on the first morning of our 3 day MTB trip back at the end of last summer. Getting a part in the middle of no-where wasn't an option and no-one had even a normal post as a spare. Given the post had seen better days anyway, the solution was to push it all back together and then peen the sides of the seat tube end over with a hammer and pliers so it was unable to slide back out. 😁🔨 Brutal, but effective. And the botch lasted fine for a few months until a replacement dropper was finally sourced.
peen the sides of the seat tube end over with a hammer
I did think of that. But given that I'm not in a hurry, I'll wait for the part. It does seem that this is a pretty common failure, which makes me wonder why they used a mild steel part in the first place - can't have saved them more than a penny or two. Given the Reverb's reputation for unreliability, it seems daft to give the critics another bit of ammunition for the sake of a penny.
Given the Reverb’s reputation for unreliability, it seems daft to give the critics another bit of ammunition for the sake of a penny.
They never imagined you’d have it so long without a warranty return 😀
They never imagined you’d have it so long without a warranty return
LOL. I found quite a few people whose circlips had rotted away before the end of the warranty. Obviously a miscalculation.
Is this the circlip failure problem? Best place to get a replacement?
The problem is that the circlip groove also gets damaged when the circlip fails so the new circlip may not stay in place. Only way to find out is to try it and see.
How difficult is it to change the circlip?
Is it under pressure or retaining oil?
[strong]Phil_H[/strong] wrote:
How difficult is it to change the circlip?
Is it under pressure or retaining oil?
1. simple
2. you would release the pressure before working on the post anyway. There is no oil to come out either at that point of disassembly.
Thanks Welshfarmer, I really ought to do do mine before it goes splat😀
I've had this twice the first time it went with a loud bang.
I’ve had this twice the first time it went with a loud bang.
Hmmm. When you fixed it the first time, did you use the standard SRAM circlip or an aftermarket stainless one?
Hmmm. When you fixed it the first time, did you use the standard SRAM circlip or an aftermarket stainless one?
I bought a bike with a post that looked like yours. I used the circlip from Sprung who were most helpful. From memory, it looked to me like it was either plated or stainless. Looking at the amount of grot trapped in the felt seal it might be worth stripping the post apart & giving it a clean inside. The lower bush in these posts is prone to wear caused by dirt ingess past that felt seal. The grease that lubricates the bush gets full of whatever gets in there & play whilst extended is the result. Your post needs some TLC.
Yes, I'll certainly clean it up. Hope to get away without a full service though - it hasn't really been used much, certainly not in the last year.
All fixed. That was easy. Good service from Sprung, circlip fitted fine once I'd cleaned everything.