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Discussion Starter · #1 ·
I have an SB130 - T2 that I bought new this year. DPX2 standard shock. I noticed while riding that after medium length or greater descents the shock would firm up to the point of feeling locked out. The shock would stay in this state for the remainder of the ride. If I let it sit overnight, the next day, I would be good to go again until the next descent. Normal trail riding did not seem to effect the performance or feel.

The other thing I noticed, and I'm not sure if it is related or not is that at the neg chamber equalization point, the suspension "catches" and requires additional force to push it past the sticking point. It then has a mm or two of almost free travel before it reengages and feels like the normal stroke again. Believe me, I cycled the shock and attempted depressurizing and refilling the shock (while following the recommended procedure) numerous times. Always the same feel at the same point in travel - around 1 cm through the shock stroke, right at the neg chamber equalization dimple.

I ended up taking it to LBS, contacting Yeti, as well as speaking with a local suspension service Guru and the feedback was that I needed to send it to Fox for warranty. Ultimately, I did. Fox replaced the shaft and did a factory rebuild under warranty, as well as removed the 2.5 mm spacer to LR it. They also swapped the main body but charged me for it- they said there was wear from "dirt getting under the wiper seal". I am pretty meticulous about cleaning my bike, so I was skeptical, but wanted the shock back and for $45, they replaced it.

Fast forward to getting the shock back, and it still has the same sticking point and free travel as before. I have never had a bike that the suspension hesitated part way through the stroke like this, so I'm still trying to figure out if it is normal. The shock still does not feel quite right riding it with all my settings back to where I had them pre-warranty work, but I may need to fiddle with them now that the rebuild has been done. This feels like something I can tune out with the damping dials. It firmed up on me a little bit after a descent on my first ride again post warranty, but not to the level that it did previously.

Any other people experience this, or similar feel in the travel of a 130 or with the DPX2 on another bike? Currently I am not very excited about the level of support from Yeti OR FOX, and am still not convinced that there isn't something wrong with either the shock or the linkage on the bike or some combo of both. I tried to go into my LBS to cycle the suspension on a new bike to see if I could feel similar issues but they don't have any in stock currently.
 

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Discussion Starter · #3 ·
Where are you geographically?
Have you tried other sb130s and did they exhibit same symptom?
Are you sure this is not switch infinity in action?
I'm up in Anchorage AK. I have not been able to get my hands on another SB130 to check repeatability on other bikes. And I don't think it is the SI because the timing of the catch point does not align with the inflection point of the SI.
 

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My sb130lr is in shop now (dpx2 rebuild, after 2 years of riding it). When I get back I will try to reproduce what you are describing.

is there any binding or unevenness in your suspension movement with the shock disconnected?
 

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Discussion Starter · #5 ·
My sb130lr is in shop now (dpx2 rebuild, after 2 years of riding it). When I get back I will try to reproduce what you are describing.

is there any binding or unevenness in your suspension movement with the shock disconnected?
Sweet thanks! I'll be interested to hear what you can/ can't feel. 2 years of riding sounds more reasonable for a shock rebuild than my 3 months.

When I cycle the suspension without the shock, it feels a bit stiff, but smooth. There is no obvious binding. Mentally I have just chalked it up to the leverage ratio and all the linkage friction. All torque values are per spec - I have completely torn down the frame including removing the infinity link and cleaned/ checked the bearings. I bought a new set of bearings anticipating needing to replace them but none of them were bad.

I am not afraid to tinker and dig in to figure things out on my own, and am fairly mechanically adept, but this one has me stumped.
 

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I have a dpx2 on my 5.5, and a friend has the same setup as you. Neither have ever displayed the characteristics you describe. Something is definitely not right, and while it is possible it may be linkage or si related, I would be almost certain it is a lemon dpx2.

My partner got a dvo topaz on her new bike. It crapped itself 2nd ride, and was sent back for warranty. 2 rides later, it's back for another warranty job, but she is also being told "why don't you upgrade to .......?"

I have no doubt the shock will fail again (I know others who run this shock with no issues, and it is excellent). It should just be binned and replaced with a new one as it is clearly possessed by a particularly nasty spirit.
 

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Discussion Starter · #7 ·
I have a dpx2 on my 5.5, and a friend has the same setup as you. Neither have ever displayed the characteristics you describe. Something is definitely not right, and while it is possible it may be linkage or si related, I would be almost certain it is a lemon dpx2.

My partner got a dvo topaz on her new bike. It crapped itself 2nd ride, and was sent back for warranty. 2 rides later, it's back for another warranty job, but she is also being told "why don't you upgrade to .......?"

I have no doubt the shock will fail again (I know others who run this shock with no issues, and it is excellent). It should just be binned and replaced with a new one as it is clearly possessed by a particularly nasty spirit.
Thanks for the input. I'm leaning towards the same conclusions.
 

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I would suspect that you have a lemon DPX2 and good luck having FOX admitting it. It does not appear that it is a Yeti-specific problem. I have ridden my SB130 for the last 3 seasons first with the stock DPX2, then a DVO Topaz, now with a Cane Creek Kitsuma DB Air and I have never felt any of the suspension issues you have. By the way, the DPX2 was the worst of all these shocks (granted it was a 2019 model), so I would say that changing for a different shock can only be better!
 

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There’s always a chance to pick a lemon, with any manufacturer.
Possibly buy from a suspension shop and have them check it prior to shipping. Some do custom adjustments free of charge.


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