Push Industries Air-Volume Tuning Kit for Fox/Trek DRCV Forks and Shocks

 On the FORK or Rear?

 Fork, I find the DRCV in the rear works superbly and never really had any issues with it so for me I won;t be looking to add the kit. The forks however always felt wanting when being pushed hard over rougher terrain.

 Actually the point of DRCV is that it lets the pressure ramp up faster in the middle of the stroke, where air springs are typically lacking in support, by having a smaller air volume in the first half of the stroke, without rendering the end of the travel useless. It's actually quite a good idea, but like anything, it needs to be tuned properly and precisely. A good idea with bad calibration still results in a bad ride.

 I think I can remember reading that the DRCV has the opposite function on the forks as it does on the shock. The fork is the only one that most people/reviewers complain about.

 It seems to me its just a cheaper fork with a fancy name But I will sat the rear does a pretty good job for just some regular to light moderate trail riding

 I don't think that's completely true. The shock feels like a regular shock until the mid stroke when it opens the valve into the other chamber, which is equally pressurized when opened, then when it's open the air volume increases giving a more linier feel to the end of the stroke and there for blowing through its travel faster. It does not create a smaller air chamber for the first half of the stoke then a regular float. I had mine pro tuned a couple times before I installed an RP23 which made it far better and more rideable, lively and responsive to rider feed back.

 In longer-stroke configurations, yes that's exactly how it works. 8.5x2.5 Floats, for example, ALL have an external air chamber to prevent excessive ramp-up, whereas the DRCV equivalent does not. This means that the shock can build more pressure in the first half of the travel than it otherwise would, without having a completely unusable end stroke. It does not, however, mean that it is perfectly tuned, or progressive enough for some rider/terrain combinations. Like I said, it's a good IDEA, but a good idea alone means nothing, and it still doesn't fix the harsh beginning stroke that Float air springs all have.

 All that sounds about right I guess , but I'm a hands on rider and am able to tune my shocks and forks by feel and have a good understanding of how they work , over thinking your adjustments just leads to head aches and frustration Keep it simple is all I'm saying , there's only 4 adjustments after all

 Drcv is just for small bump compliance, and big hit control. The fork feels like it does the opposite, because the 2013 fork is a price of crap. I am for sure going to use the kit on the fork, but the shock is great

 Exactly. Install them, reset your sag and go ride.

 Think I've figured it out. Ordered em now

 Thanks!

 same boat here w/ the rp23 on the Slayer i ride. I weigh about 210 kitted up and bottom out just bunny hopping on a road. gotta keep pro-predal on all the time. I'll be push-ing it manana.

 Every tried running a little less sag?

 try 20 % sag... its faster too

 think they will come out with something for the older 831's with the CTD?

 nothing for the slash, just remedy and fuel ex? i like the drcv shock on my slash, but have been bottoming out more than id like

 Could put rocks in it and it would do the same..? As i see it, you replace air volume by some plastic causing the pressure to raise faster through the travel..?

 35% sag is wayyyyy too much, for xc try closer to 20...

 I concur, anything for the SLASH?

 @ rizz121 that's a good one about rock! But seriously.. in all forks that I had I always used a oil volume to control bottoming. I have no big experience in air shocks but can it be done just by adding a few cc of oil to main chamber?

 Yes^
These kits are a rip off for forks. Just add A few cc's of float fluid to your air chamber and you will achieve the same.

 Exactly. Just add some oil. It will do the same, but for a darn less of $$$.

 Yes on the Slash. The kit fits any DRCV shock that uses the small dome cap. As for the kit being a rip off because you can add oil, yes you can do that but it is a short term fix as the oil migrates past the air piston. This kit maintains a consistent air spring.

 I like to try and focus on downhill even though I'm on a Remedy so I run at 35% but yeah when I get the push kit ill move to down to 28-30% see how it goes!

 Adding oil decreases the volume of the lower canister. That is not what you are wanting to tune. After a certain amount of stroke, the upper canister kicks in and changes the rate, volume and feel. I agree that nearly any solid would work, but I am sure the guys at Push and Fox have done their due diligence and know a bit more fluid dynamics than the average Pinkbiker.

 So I just did my first ride with the 7cc volume reducer in and I'm not sure if I like it yet. I'm so used to the soft cushiony feeling I had with out, now its so hard its like a reduces sag by 15%, it is awesome for pumping and gaining speed though but I felt like I was bouncing around like I was on a hard tail, I'll have to give it more tries.

 you do realise you are supposed to reset your sag to what ever it was before? the point in these spacers is to make it ramp up at the end of the stroke not change the beginning.

 Of course I reset my sag to the exact amount I had without the spacers, and that's my Point, that it feels harder at the same sag level even just from sitting on jt

 Well, Trek designed the bike to have a linear stroke which I love from my DRCV bikes. Some people will go to PUSH to undo that linear spring rate. I guess you could say that it was "wrong" from the start, but it is really just opinion.

 Spoke more in general terms. I've had 2 Remedy's, one pre DRCV and one with DRCV. Loved both of them. Could just be the feeling that comes from dropping a bunch of cash on a bike or even just the fork or shock and needing to have it serviced, re-valved, Pushed or what not to get it working properly.

 They build them from the factory so that 90% of riders "use most of the travel", not to screw you out of your money. If you ride extra hard or have a broader definition of what a "trail ride" is, then you'll blow through your travel. This is common on many/most brands of bikes. If it wasn't true, then the majority of riders would complain about not being able to use all their travel. One tune can't do it all for everyone.

I found this on my '08 Remedy with the OEM RP23. I had to pump it too firm to keep from bottoming hard on my local rides and risk snapping my frame. I threw a small air can on there (available from Fox) and found it resisted bottoming nicely! Easy and cheap upgrade, just like this kit from PUSH is an easy and cheap upgrade.

 An interesting point about people decreasing the air volume in their Giants is that Adam Craig was (I don't know if he still is) running the extra volume air sleeve on his bike to get more linear travel, i.e. the opposite of what everyone else was and is doing.

 I have a stock Rp-23 on my super lite and have never had a problem with almost breaking my frame I'm 185 lbs. and ride harder than most of my friends and I hit 7 ft. Jumps and 15 ft. Gaps at my local trail easily with no problems

 @Chuckbike - You have to consider leverage ratio (Suspension Travel divided by Shock Stroke). Anything over 2 to 1 ratio with that shock, at your weight, will blow through the travel more easily. Air pressure (sag) will also factor in, of coarse.

 With out going into the mathematical side of it , I set it up and ride it and have never had a problem Rp-2 was a little less responsive but the rp-23 was a step above for sure I'm not even using it for its intended use and am still getting more than expected performance out of it

 If the two shocks had a different volume air can, then you will feel a big difference when running the same amount of sag. Plus, the RP23 gives you more Propedal choices. Either way, you're lucky to have a setup that works. I know lots of people that wonder why they can't get their suspension to work right for them. Usually bigger guys. That's the point of the air volume kits. It would just be nice if all this stuff was worked out for the customer when they buy their bikes. Personally, as a mid-weight, my bikes' stock shock has a spring rate that works for me. I still had the damper tuned by Push for my weight and aggressive riding style. It was a small improvement, but in the end, an expensive one. It started making a squealing noise, when rebounding, two months later though. I guess a positive got canceled by a negative.

 I hear ya, I really think most people over think the whole process

 You do it yourself.

 TF Tuned Shox should have them in stock....

www.tftunedshox.com/default.aspx

 Or here even www.tftunedshox.com/Catalogue/PUSH/PUSH/PUSH-Parts

:-)

 Super easy to do , this kit is dummy proof almost

 almost

 The reason the suspension blows through the travel is because of the lack of dampening. Playing with air volume is just a bandaid fix for a poorly designed dampener.

 The propedal not doing squat is prolly because of the factory tune on the compression damping

 Are you using the full stroke on your slash? i am. Mine is set up via the Trek guide thingy. Admittedly i know SFA about suspension tuning.

 Ya I'm using full travel. It's just too soft initially. Can't pedel the thing up hill

 on my remedy i typically run 10-15 psi over what trek suggests for the rear and atleast 15+ psi for the front. its a 2013 with CTD

 What's the reason for this factory tune?

 Different bikes have different leverage ratios and different levels of anti-squat built into them. So it's better if a bike with a good pedal platform built into it uses a lighter compression tune, so that when the propedal is on it isn't a lockout. Oppositly, a bike with a very active suspension would need a heavier compression tune, so that it noticeably firms up the rear suspension.

 ProPedal has almost nothing to do with air can volume inside the shock, it's damper (oil) function.I suppose you have had your complete shock push tuned, that would make more sense, but still, if you have small bump compliance with propedal on then you don't actually have propedal. It's meant to prevent pedal bobing when climbing over obstacles, too.

 So you got your shock pushed so you could use pro pedal all the way on yet still have small bump compliance ?? Isn't the point of pro pedal to have a low speed compression platform ? , why not leave it open .... ?

 I love it when wacky tries to impress us with his technical knowledge and sticks his foot completely down his throat into his stomach...and then disappears...or wakaba shows up....

Has their ever been a coil shock in history that was more efficient than an RP23? wakiness.

Hey Wackster, how much you wanna bet Gwin shows up on a bike with longer chainstays at the next World Cup?

 I think there was some misunderstandibg. What I was trying to say was that I tried their product, it was way better than I anticipated, I explained why and therefore I think they are an awesome company...

 Ok waki, I believe you bro.

 Waki is wright the FoX CTD is awesome! So is DHX wiked stuff. Pro pedal gives you awesomely cool small bump sensitivity.Totaly otimized

 FYI thanks to their high flow valve you can have great bump sensitivity on pro-pedal. You get both: plushness and efficiency so why the f*ck should I or anyone with full open setting on Pushed shock?! You can have full open without spending money for tuning. Ormaybe you listen to those goofy journos who always write that they ride with pp off as suspension is good enough? Idiots.

Ah and CTD shock with boost valve and factory tune (one with additional, 3-position black knob between rebound and ctd switch) is nothing else but RP23 with additional intermediate postion on main switch... So sshredder - Did I ruin your world of whats cool and what isn't?

 Maybe it didn't come through our SPAM filter? Email nickb@pushindustries.com directly, or call (970) 278-1110. We'd be happy to help you out! -Darren

 Wrong shock buddy.

 That's a different kit and only fits standard Float series shocks. This kit is specific to DRCV.

 Sorry - my mistake.

 Pour some sand in the chamber, or whack it up with a hammer.

 I gave up on Fox. Generally tuned for comfort not performance on their trail/am series. You can tune a Monarch with some suspension knowledge and shims at home.

 You don't need to go to an aftermarket tuner to make suspension work, it works just perfectly fine. This just offers a new option for riders who would want it. It's a NICHE product. They design these bikes to be able to handle a "standard" of riding that most people ride at. To expect them to be able to support all riding styles and how hard people ride through all weights, bike sizes, etc...etc... is absurd to be frank.

 I was thinking more about straight upgrades to suspension platforms, independent of tuning to specific user.
From the article: Push offers "a line of upgraded internals like high-flow damping pistons, low-friction seals, washer stacks, check valves and low-speed control valves. Push upgrades make good suspension great and often can salvage the performance of a shock or fork that was handicapped by its manufacturer from the start." I figure every rider, independent of weight or style or bike, would want some low-friction seals, no?

And then, the idea of a DIY tuning kit IS to work for "all riding styles and how hard people ride through all weights, bike sizes, etc...etc" so I'm not sure I follow your comment.

I love that Push is developing these things. I'd just like to challenge suspension manufactures to partner with Push to develop better standard and OEM products, for everyone. But maybe thats absurd.

 I agree with Piks. I'll take it one step further and suggest that bike shops should be involved. Why not design suspension products that allow retailers to setup the bike more easily for the intended rider. Even this simple aftermarket air volume spacer is too much for some people to comprehend. Why send the customer, out the door, with a bike that doesn't work right (for them). Let the bike shop do it.

 Well the issue also is that this in effect changes how the suspension was designed to work. Now, some people want a more progressive type of suspension, others may not. Again, this isn't "fixing" it or making it work, it's just changing it. Same as changing the HA with aftermarket parts. Some people want it slacker, some don't.

 Pfff, it's just fine tuning, Trek suspension works just as well as other large bike manufacturers and it's all personal preference. I have a slash, and love the way the suspension works, DRCV and all!

 I was advised by Push to get them from here:

www.tftunedshox.com/Catalogue/PUSH/PUSH/PUSH-Parts

 Sweet. Thx for the info

 Would this work for the Slash shox too?

 Seams this is only available for remedy

 Any dcrv fox shock , remedy , fuel , etc....

 Yep your right.... Cheers

 Nice! I have wanted something like this for a while. Something I mentioned in one of my amateur vid reviews, a bit ago. www.youtube.com/watch?v=cCxtTqQH5qk

 +1 for Slash.

 Just heard back from PUSH via email - the kit will fit any DRCV shock with a concave air cap, including the one on my Slash 8 at least.

See here... bit.ly/170YiAO

 Are you just a smoker or a pyromaniac?