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38 vs. Zeb w/ vorsprung secus

4636 Views 28 Replies 9 Participants Last post by  Dougal
I’m in a bit of a unique “vs” situation. Heavy rider (240lbs), ride aggressively (chunk/jumps/drops/etc), fork will be going on a sentinel v2. Currently running a lyrik and my biggest issue is it dives very easily and isn’t as plush as I’d like it to be.

Just bought a 38 performance elite + secus for a great deal, haven’t installed yet. I’m a bit worried about it being a second hand fork and developing csu creak and not being able to warranty it. So I thought of selling the fork and keeping the secus to move over to a zeb.

Here’s my current pros and cons list for each, would like some other opinions to see if I’m validated in my concerns.

38:
Pros
  • tunable (I think) for my weight
  • grip2 damper

Cons
  • no warranty
  • CSU creak
  • would be running max pressure with the secus
  • more $$ on service intervals/proprietary tools (I can do a lowers and air spring service, but can’t do the damper?

Zeb:
Pros
  • warranty
  • easier service
  • easier setup
  • “set and forget”

Cons
  • not easily tunable
  • have heard it still dives like my lyrik does (could be fixed with secus I’m thinking)
  • have heard it’s not as good for heavier riders as the 38

What say you, suspension experts? Is the secus+zeb the answer or is the 38 the way to go and hope I don’t get csu creak? Anything other details I should consider?


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Do you have access to the fox service center? RS forks tend to be super easy to Servise, u can fine tune any fork, even lyric with avalanche unless u have flex issues and wanna more stiffer fork;

I would invest in top of the shelf tune for current fork prior to upgrade


Cheers
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Do you have access to the fox service center? RS forks tend to be super easy to Servise, u can fine tune any fork, even lyric with avalanche unless u have flex issues and wanna more stiffer fork;

I would invest in top of the shelf tune for current fork prior to upgrade


Cheers
Not sure about fox service center, but there’s a dedicated suspension shop about 20 min from me.

I have the lyrik select with the RC damper, so I don’t think it’s worth tuning. I’d have to get the charger 2.1 upgrade ($300) and then get a tune on top of it. The $300 + tune is more than what I will have paid for the 38+secus after I sell the current fork, and the 38 has the stiffness for a big guy like me.


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I’m ~230 and keep reading posts about the Zeb that don’t sound anything like my fork.

I have a 170 Zeb on a Titan, and it’s the best fork I’ve had yet. I have no complaints about the mid stroke at all. Mine is 80-82 psi (assuming my gauge is accurate) with no tokens. At the moment I just have a few clicks of rebound damping, and I’m quite happy with it.
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I’m ~230 and keep reading posts about the Zeb that don’t sound anything like my fork.

I have a 170 Zeb on a Titan, and it’s the best fork I’ve had yet. I have no complaints about the mid stroke at all. Mine is 80-82 psi (assuming my gauge is accurate) with no tokens. At the moment I just have a few clicks of rebound damping, and I’m quite happy with it.
That’s good to know! Definitely will keep that in mind. I think my biggest concern about the 38 is the csu creak


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Not sure about fox service center, but there’s a dedicated suspension shop about 20 min from me.

I have the lyrik select with the RC damper, so I don’t think it’s worth tuning. I’d have to get the charger 2.1 upgrade ($300) and then get a tune on top of it. The $300 + tune is more than what I will have paid for the 38+secus after I sell the current fork, and the 38 has the stiffness for a big guy like me.


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I rephrase- i would invest 300-500$ into aftermarket damper from push/avalanche/ similar to your fork that is designed for your needs


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That’s good to know! Definitely will keep that in mind. I think my biggest concern about the 38 is the csu creak


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I’m as upgrade curious as the next person: Runt, Luftkappe, Secus, but honesty I don’t have a complaint that I’m trying to resolve. If I did anything I’d probably do a DSD tune and Runt, but they aren’t accepting mail-in work at the moment and I’m saving for a wedding.
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I’ve had a few creaky Zeb CSUs, unfortunately. The issue is inescapable.
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We've made single crown forks so long that it's impractical to beef them up to the point where this wouldn't be an issue, this is where a DC fork becomes a much better platform. Stuff like 170mm 29er forks are just ridiculous axle to crown...and now Pole is talking about using a 1.8 steerer, but the problem is that a SC is just a bad idea for axle to crown lengths this long and riding this hard.

At least RS seems to try and make a beefier chassis for the same size stanchion tubes compared to Fox. Fox crows usually have far less material and smaller dimensions...but it's still all just a stop-gap for what's simply not the appropriate design.
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They're both going to be hugely under-damped for you. RS seem to have stanchion creaks sorted.
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For what it concerns the suppleness/mid stroke support issue, the stock Zeb air spring is exactly the same as the Lyrik so you'll want to upgrade it somehow. The 38 is much better in that regard.
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240lbs on a Lyrik Ultimate (same damper as the Zeb). I had to have mine custom tuned. The stock Charger 2.1 tune is crap for heavy riders. The compression tune is very light and running the kind of pressures we need for support makes it harsh on small bumps.

A Secus should deal with the small bump harshness while preserving mid stroke support but you'll still need to have it revalved for your weight. You'll probably find you can drop your air pressure after a tune as you'll be compensating for the lack of damping with extra pressure at the moment.

I couldn't afford a Secus at the time so added some Push ULF wiper seals which improved small bump noticeably (takes a few rides for them to wear in). I might still get a Secus at some point, but that's being picky. Works much much better after a revalve.
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They're both going to be hugely under-damped for you. RS seem to have stanchion creaks sorted.
Is the vvc a better tuning platform than the charger 2.1? I’ve seen a few posts about it still being new enough that tuners aren’t sure yet


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For what it concerns the suppleness/mid stroke support issue, the stock Zeb air spring is exactly the same as the Lyrik so you'll want to upgrade it somehow. The 38 is much better in that regard.
That’s what I thought. If I did go to a zeb I’d keep the secus and pick up a foot stud for the zeb


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240lbs on a Lyrik Ultimate (same damper as the Zeb). I had to have mine custom tuned. The stock Charger 2.1 tune is crap for heavy riders. The compression tune is very light and running the kind of pressures we need for support makes it harsh on small bumps.

A Secus should deal with the small bump harshness while preserving mid stroke support but you'll still need to have it revalved for your weight. You'll probably find you can drop your air pressure after a tune as you'll be compensating for the lack of damping with extra pressure at the moment.

I couldn't afford a Secus at the time so added some Push ULF wiper seals which improved small bump noticeably (takes a few rides for them to wear in). I might still get a Secus at some point, but that's being picky. Works much much better after a revalve.
Who did you have do the tune?


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Who did you have do the tune?


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TF Tuned (I'm in the UK).
RS seem to have stanchion creaks sorted.
If you’re talking about the Lyrik, I agree. I owned a 2017 Lyrik for 2 years and a 2020 Lyrik for a year. The 2017 Lyrik only developed a minor creak after 2 years of use. The 2020 was silent at the time I sold the bike.

I have found the Zeb to be much creakier. I’m on my third CSU in a year, and this one now creaks too. They’ve all started creaking about a month into their use.

The casting on the 2022 Lyrik crown (as seen in the Flight Attendant release) looks more similar to the Zeb. I’ll be interested to see if it fares as well as the older version.
If you’re talking about the Lyrik, I agree. I owned a 2017 Lyrik for 2 years and a 2020 Lyrik for a year. The 2017 Lyrik only developed a minor creak after 2 years of use. The 2020 was silent at the time I sold the bike.

I have found the Zeb to be much creakier. I’m on my third CSU in a year, and this one now creaks too. They’ve all started creaking about a month into their use.

The casting on the 2022 Lyrik crown (as seen in the Flight Attendant release) looks more similar to the Zeb. I’ll be interested to see if it fares as well as the older version.
I have no creak on my 2019 lyrik which is nice. Also tossing around the idea of moving the secus to the lyrik and selling the 38. But everyone I talk to says once you ride a 38mm stanchion at my size you won’t go back


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I've got the 38 Factory 180mm w Secus. I'm about 190lbs with gear.

First footstud had a slow leak, escaping into neg chamber having a little more air than usual come out of release valves. I'd ride it one day, the next day I'd loose 40 psi. I got in touch with Vorsprung, they were great and sent me a new foot stud free of charge. Old foot stud..

Bicycle part Auto part Engineering Cylinder Metal


Installed the new foot stud being sure to install with generous amount of slick honey on o-rings.. works perfect now. I'm about to uninstall the foot stud and swap to a 170 mm air spring. So far, absolutely loving the Secus.
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Update: with the 38 and secus, max pressure puts me at 25% sag (170mm air spring) so I don’t think it’s going to work.

So I’m going to be looking into swapping the old foot stud back on and running the fork without the secus.


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