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Debonair air shafts...
 

[Closed] Debonair air shafts... worthwhile upgrade?

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[#11185563]

Ive got to do a lower leg service on my pikes and thought whilst Im at it have a look at a Debonair air shaft upgrade.

There are two types available for my fork (2018 Pike) on the TF tuned site:

This one (Original Debonair air shaft)
https://www.tftuned.com/debonair-air-shafts-for-2018-pike-b1revn-35mm-original-spec/p3413

Or the new 2021 uprated model:
https://www.tftuned.com/2021-c1-debonair-air-spring-upgrade-kits-pike-yari-lyrik/p3851

Do any of you have experience of either, particularly the newer one as it says it helps the fork sit higher in its travel.


 
Posted : 11/05/2020 10:51 am
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No experience with the newly released one, but can say the original Debonair shaft makes a noticeable difference Vs the Soloair on a Yari in terms of initial travel sensitivity.

However, I'd first look into upgrading the damper, if that's an option


 
Posted : 11/05/2020 11:07 am
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What are the damper options.

I believe mine has a charger damper?


 
Posted : 11/05/2020 11:12 am
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Makes a huge difference in older pikes plus the new wiper sealsn


 
Posted : 11/05/2020 11:12 am
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My older pikes were really harsh and the 2019 debonair shaft made no difference that I noticed.

I ended up altering the shim stack a couple of times to make them more supple.


 
Posted : 11/05/2020 11:19 am
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Makes a huge difference in older pikes plus the new wiper sealsn

Which wiper seals did you fit?


 
Posted : 11/05/2020 11:22 am
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I'd do the air shaft before the damper, personally.

Cheaper, possibly easier and likely to offer a more noticeable improvement.


 
Posted : 11/05/2020 11:22 am
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That was my thoughts too Chakaping.


 
Posted : 11/05/2020 11:44 am
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I agree - in order of preference I’d go air shaft first (2021 version as there’s so little price difference) then go with the rc2.1 damper if you can afford it. Having upgraded 2018 lyriks I’d say the difference is very noticeable...


 
Posted : 11/05/2020 11:45 am
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Given the questions you have asked and still having issues and not owning even a cassette tool I would instead look at sending them off to a professional who can service them and check out any issues you are experiencing.....far better use of your money and our time


 
Posted : 11/05/2020 12:08 pm
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Given the questions you have asked and still having issues and not owning even a cassette tool I would instead look at sending them off to a professional who can service them and check out any issues you are experiencing…..far better use of your money and our time

Yet you use your time to reply??

FWIW I've serviced quite a few sets of Rockshox over the years with no problems what so ever. This is the first set I've come across that needed a cassette tool to remove the top cap. I had a tool but lent it to a mate who hasn't returned it hence I needed to buy one.

I'm asking about upgrading the air shaft whilst I have the forks apart. Whats the problem with that? Many people have done it on here so offer some helpful advice about it.


 
Posted : 11/05/2020 12:19 pm
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You’ve got a charger damper (probably a charger 1) so you’ll likely get more benefit from the upgraded airspring.

It’s not an expensive upgrade so I’d just go for it - May as well try the newest 2021 version as there’s little difference in cost between that and the 2019 debonair version.

If the forks haven’t had new seals for a while it would make sense to change those at the same time - I’ve just bought skf ones from TF Tuned for my Lyrik to try. Not expecting a huge change tbh but the Rockshox genuine ones (cheaper) weren’t in stock at the time!


 
Posted : 11/05/2020 12:31 pm
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You’ve got a charger damper (probably a charger 1) so you’ll likely get more benefit from the upgraded airspring.

It’s not an expensive upgrade so I’d just go for it – May as well try the newest 2021 version as there’s little difference in cost between that and the 2019 debonair version.

If the forks haven’t had new seals for a while it would make sense to change those at the same time – I’ve just bought skf ones from TF Tuned for my Lyrik to try. Not expecting a huge change tbh but the Rockshox genuine ones (cheaper) weren’t in stock at the time!

Cheers for the info. Going to get ordering.


 
Posted : 11/05/2020 12:45 pm
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id swap the sir spring first. its very easy to do.

im n the previous debonair spring which is ok. However i have had to remove all tokens as it still ramps up a lot for normal riding / mincing. I find its a lot better this way but a bit harsher at the bottom which is to be expected. I wouldnt hesitate in going for the new air spring given what your doing.

Youll need a bit of sram butter as well.


 
Posted : 11/05/2020 12:46 pm
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I have the old Debonair in a brand new 2020 Pike Select. I'm guessing that it's far too early for me to thinking about the 2021 Debonair upgrade now but if anyone has tried both I would be interested in hearing how significant of an improvement it is. I might upgrade when its time for a full service, that is unless someone thinks I need not bother.

Reviews are few and far between currently but from what I've seen it would be a beneficial.


 
Posted : 11/05/2020 1:15 pm
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Reviews are few and far between currently but from what I’ve seen it would be a beneficial.

This is what I found also as like you said not many reviews.

How do you find the original debonair model, have you ridden an older model as a comparison.


 
Posted : 11/05/2020 1:18 pm
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I thought the latest air shaft was for the 2020 forks only but apparently not. Having looked at the new air shaft the bottom seal is acting as a spacer. I always thought the idea was to increase the air inside by making use of the middle of the rod and having the thinner base plate.


 
Posted : 11/05/2020 1:18 pm
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How do you find the original debonair model, have you ridden an older model as a comparison.

Sadly I have no fair comparison. I have come from the cheapest air fork available (Suntour XCR Air).


 
Posted : 11/05/2020 1:45 pm
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I upgraded from solo-air to debonair (2019) and now to debonair (2021). I did change travel between them though so kind of hard to state for certain the differences. I will say the 2021 spring sits noticeably higher in its travel than the two previous. And it's a bit less of a faff to setup. The fork feels great, no complaints with it. I also have a charger 2.1 damper.


 
Posted : 11/05/2020 3:29 pm
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Good stuff.

Does it still blow it's travel or is it more progressive now.


 
Posted : 11/05/2020 3:57 pm
 edd
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Does it still blow it’s travel or is it more progressive now.

End stroke progression is super easy to adjust with tokens, irrespective of the the air spring (solo, debonair or 2021 debonair).


 
Posted : 11/05/2020 4:21 pm
 Crag
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I'm waiting on delivery of a new Debonair spring, it's interesting to read peoples views on it.

I'll let you know how I get on but for £40 it's a cheap enough upgrade.


 
Posted : 12/05/2020 12:34 pm
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Upgraded mine from last year's upgrade - it's a big improvement in terms of plushness, and sits higher in its travel. I think the tokens are good to stop bottom out - I use 1 token, 60 psi on 160mm 27.5 Bronson, and I weigh around 70kg and ride in the Lakes.


 
Posted : 12/05/2020 12:47 pm
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I'm tempted to do this with my 27.5 Jeffsy, as well as adding 10mm of travel. By 'do this' I mean send it off to tftuned since I don't trust myself to install it right!


 
Posted : 12/05/2020 4:12 pm
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Ive ordered the air spring and lower leg service kit and will be doing the conversion as soon as I get the parts.

I almost ordered the plus 10mm version to take my fork to 160mm but if it will make the fork sit higher in its travel I dont think its warranted.


 
Posted : 12/05/2020 4:23 pm
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This sounds just the ticket for my hardtail. There are loads of 'first look' articles but few actual reviews. Since its such a cheap thing, I figured Id just bit the bullet and see for myself.


 
Posted : 12/05/2020 4:31 pm
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I upgraded a 2020 Ultimate, it sits about 10mm higher with no weight on the bike and also rides a bit higher as well. Definitely worth doing for the money.


 
Posted : 12/05/2020 10:37 pm
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That's the thing I asked about in previous versions of this thread.

If it rides a load higher, then surely you don't have enough sag to develop grip from the fork extending?

If you just wanted your bars higher, why didn't you buy risers?


 
Posted : 13/05/2020 8:08 am
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You must have missed the bit in every press release that says that it sags the same but rides dynamically higher.


 
Posted : 13/05/2020 9:02 am
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I read many of the press releases. Perhaps, since they were unable to, could you explain in simple, practical terms, what 'riding dynamically higher' means, if sag is defined as the ride height that the fork sits at under the compression of a rider in the attack position, whilst riding?

Does it mean that it uses less travel for a given impact (i.e. acts as a shorter travel fork, or one with a higher spring rate) - and do you think this is something desirable? If it acts like it has a higher spring rate (due to the smaller negative spring), is this a good thing?

Do you crave 'midstroke support' at the expense of front wheel traction? *cough*


 
Posted : 13/05/2020 9:24 am
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I've read somewhere that is gives back the extra bit of travel that rs forks are known for sucking down when just weighted by the bike.

I've also read that they sit higher in the midstroke travel too.


 
Posted : 13/05/2020 9:34 am
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Also, I don't believe it has a smaller negative spring but does have a smaller positive spring as they are saying you need less pressure for the same sag.


 
Posted : 13/05/2020 9:36 am
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It’s a bit of an odd one this but something I very much noticed myself recently. Bought a set of 2020 Lyrik ultimates and swapped the 150 spring they came with for a 160. I swear I must have had those forks apart 10 times thinking I had installed the spring wrong coz I couldn’t get them to sit at 160!! They sit about 10mm short. Still great forks though - ride superbly and I’ve ordered the 2021 parts. They’re cheap enough and it’ll be interesting to see what difference they make.


 
Posted : 13/05/2020 9:38 am
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Perhaps, since they were unable to, could you explain in simple, practical terms, what ‘riding dynamically higher’ means,

History has shown I lack the necessary tolerance or time for this. Besides, if you dont understand it from the professionals, I am unconvinced some random bloke on a forum will be able to assist.

I would say that you appear to be conflating 'more mid stroke support' with increased spring stiffness, and this is not the case. Look up dynamic sag and static sag, theres plenty on the internet.


 
Posted : 13/05/2020 9:42 am
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Renton - yes, it does have a smaller negative spring. There are three or four threads on this - one I started myself, in fact - where I was edcumacated on this. They might give you back some travel if your pikes suck down, but you could also just cut off your o-ring travel indicator and keep riding as long as you like how the fork performs and not worry about it.

Scienceofficer - I think you might be misreading my post; but I'm glad you have simplified things by confessing to being one of the people that RS designed the new spring for. Probably be a cracking upgrade for you.


 
Posted : 13/05/2020 12:28 pm
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^graphs

That's what the numbers say.


 
Posted : 13/05/2020 1:05 pm
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Continuity erm sorry but that's wrong :

A clear advantage of the DebonAir upgrade is that the fork will no longer contract. However, due to the higher position of the air spring piston, the positive air chamber shrinks minimally while the volume of the negative air chamber increases.

That is from enduro MTB website.


 
Posted : 13/05/2020 1:23 pm
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Negative chamber is definitely smaller in 2021, see the link I put up for images comparing


 
Posted : 13/05/2020 1:42 pm
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Scienceofficer – I think you might be misreading my post; but I’m glad you have simplified things by confessing to being one of the people that RS designed the new spring for. Probably be a cracking upgrade for you.

I'm sure you're proud of that one.

Yet you steadfastly refuse to educate yourself and posit your opinion as fact.


 
Posted : 13/05/2020 1:51 pm
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deanfbm, can you please point us to the link for images showing the smaller negative air chamber or if you are referring to the graphs in suspension labs posts, can you please explain how you conclude from these graphs that the negative chamber is smaller?


 
Posted : 13/05/2020 3:04 pm
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My '19 130 Debonair Revs sat at 120 and I wanted 140. So knowing this I swapped in a 150 which now sits happily at 140 ish.

Half the price and better than a 140 2021 shaft?


 
Posted : 13/05/2020 3:18 pm
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All the reviews I've read say the negative spring is bigger and the positive is smaller.

They also say you need less pressure for the same sag so the ties in with a smaller positive chamber.


 
Posted : 13/05/2020 3:26 pm
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Renton - I think you may be mistaking, or possibly the reviews may be mushing together the Debonair spring upgrade when it first came out (larger negative chamber) with the 2021 upgrade. This has more negative volume than the gen1 spring, but less than the 2019 debonair upgrade. Plenty on the net showing this. Plenty of reports of a lack of sensitivity off the top as a result (whether you care or not is another matter, suspension is always a tradeoff)


 
Posted : 13/05/2020 4:02 pm
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Real good read here

https://forums.mtbr.com/shocks-suspension/rockshox-debonair-2021-a-1133399.html


 
Posted : 13/05/2020 4:10 pm
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Do you ever look down between your legs and think, 'I feel like it should be longer, pretty sure some of the length is just sucked up inside. ' Well if so, do we have the product for you...

lol'd at that one


 
Posted : 13/05/2020 4:29 pm
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