Rpm Knuckles Question?
 

I was wondering does anyone here use the rpm knuckles on there maxxes? The reason why i am asking is because i have been using these for about a year now and it seems like there is a lot of slop where the bearings are and it does seem to be getting worse. I did replace the bearings just recently thinking that they were bad and that did not seem to help. Is this a common problem and would upgrading to aluminum help this at all? Thans guys for any and all help.

I don't use them, but it is not uncommon for the plastic to wear a little and cause this slop. THE RPM PLASTIC IS BUILT TO FLEX, SO i AM NOT TERRIBLY SURPRISED THAT THIS WOULD HAPPEN. (damn caps lock!) :)
I suppose everything will wear out eventually, but I have yet to wear out a set of aluinum knuckles.

I run the rpm as well. Me and my brother both are experencing the same problem you are. I guess the knuckles are getting bigger holes than was designed with.

Hey mike! What is a good replacement product for the rpm? I want something better with out the slop. Blue preferibly.

I use Integy super duty knuckles. they are aluminum, with big bearings and are available(and in stock) in blue.

I was thinking of changing every thing out. Does that RAcer x suspension really make a big improvement? Is it lighter to? I looking for some diet items. I running the Rpm arms and knuckles. I was looking at them or some fast lane arms.

The racer x is an excellent, premium suspension. It makes ahandling difference, as well as being pretty light. Integy makes a copy of it as well, which is available in blue. The Integy is pretty nice as well, though not the same league as the UE(also half the price). I run both. On a budget, I would take the Integy. Without a budget, the UE goes on the truck.

Hey mike d. Did you ever get your knuckles straight? If so what did you do?

No i still have the same problem with the rpms. I think my next purchase might be some of the integy aluminum knuckles or i might just get the silver pro 3 race suspension. Rpm makes some good stuff, but it just does not seem to last imo.

Great! Guess I have some slop to look forward to.... lol ;)

Can you tell me what I should be looking for so if and when it happens I'm knowing what it is.

Thanks

play on the bearings in the knuckles... that's the catch..

t2693 look for your wheel to wooble around. You will think they are loose but they not.
Mike d I thinking about the same thing. If you get them before me let me know. If i get them before you i let you know. How they do.

Thanks coolhandcountry, the bearings in the rpm knuckles are great imo, its just the knuckles themselves. Its like the plastic or nylon or whatever it is just eventually stretches over time.

Well i guess if the out side of the bearing is not stationary. How can the inside be? Me and my bro is having the same as you. You accaully saved me some money by letting me know what the deal was. I was getting ready to buy some bearings my self. I owe you one on that.

can't you glue the bearing in place? Use a bit of oil on the bearing and CA glue on the knuckles, that way you are able to remove the bearings when needed..

I notice that my knuckles still have flex in the arm part. I like to go with something stronger. Take them off and sell them on ebay.

I have rpm knuckles, arms and shock towers. All of rpm's stuff is somewhat flexible thats why it does not break so easy.

exactly! This is why I don't run the rpm stuff. Too much flex(I like precision handling vs. ultimate durability). The flex in the rpom arms can cause cvds to bend as well. The rpm kuckles are nice, beefy units, but they will flex a bit(this is the nature of the rpm nylon!).

I used to run rpm arms and tower's(had knuckles on the way from tower) w/ cvd's... That is a big no no as I managed to bent a ue cvd without any jumping, only spreed run's and tight corner's which I think killed the cvd. Had to upgrade to racer x(the real one) which is the nicest thing you can get suspension wise. Never had a problem since.

You can get alum knuckles, but that might be a bigger no no if you still use rpm arm's. The racer x is great, handles like a dream and it's simply the best out there(not even gonna name integy). Well worth every penny.

Does any one know the weight difference between stock and the racer x? Well acaully between the rpm and the racer x.

Mike would be the man to ask about the weight. I am starting to think that the racer x might be the way to go, or the integy pro 3. I agree with mike i do not like the sloppy feel of the rpm parts i want more precise handling.

I weight my racer x, with 4 knuckles and 8 arms including pb's it's around ~480 gram. Don't know how heavy rpm is, but one thing I can tell you is that the arm's are lighter. Knuckles are the heaviest part.

seems the racer x is the stuff to get. I have to fix rears first though. I don't worry about weight a great deal. I would like to lose a few grams on truck though. I rather have it durible than light. If i get both that is a plus. Thanks everyone.

If you wait a bit i think mike is going to carry UE stuff soon. Or maybe go with the integy pro 3. Also mike are you going to be getting in the integy silver pro 3 in soon, thanks?

I need to fix my rear problem first. Running a straight line don't do me no good if can't even run a line. I may go with integy. I don't race really. I just like it to handle well and be durible.

Yeah i don't race either, just run in the yard and street. But i agree i do want my maxx to handle well and from what everyone including mike has said that the UE racer x or Integy pro 3 will work very well for both applications. I also like how light the pro 3 and racer x are, i would like to have under a 10lbs truck if possible.

Mike was telling me in another forum or some thing. That if you don't race the integy works good. If you race he would get the ue brand. I don't race so. I like the price better on integy. Not only that but i can get them in blue.

Yeah i like the silver, and i also like the integy price. Do you run a stock chassis or another brand? Also how many cells do you run with your 7xl?

I don't have the 7 xl any more. I had bad crash. It messed motor up. I run 18 cells. I running the gmaxx. I right now am making a chassis extension for the front part. I have the rear one. I am running a 14 l on my truck at this momment. I have been running 30 mins or longer on a set of gp3700. I like to go back to a xl version though. What do you have?

Right now i'm running a 9l and 9920 on 12 intelect 3600 cells with a stock chassis and the single speed conversion, and of course all my crappy rpm stuff.

I hear you on the crappy stuff. I run the rupm knuckles and arms. I have fastlane shock towers, fastlane combo bulks, aluminum tranny with steel idlers, Ue titanium center shafts, rcraven bumpers, and it probably some other stuff to. How does that 9l do?

I think with the single speed it runs hot, like 160 to 180, depends on gearing. I think i might go with a 10l or 7xl, not sure yet.

The Integy works fine for racing(handles just like the UE), but the UE is a bit tougher and is also lighter. The Racer x suspension is about 2oz+/- over the stock suspension, so about the same as the full rpm set up. I am officially carrying the UE stuff now (have shocks and a few other parts in stock now, but will slowly build to carry most everything the offer(I also have servo savers and ti driveshafts from UE in stock). I will also create an unlimited Engineering support forum to these boards very soon! For now, I can get anything that is in stock on the UE website, and will do so upon request as I build my inventory.

The silver Integy pro 3 suspension has been out of stock for a couple months. I order it every week(hoping they get the hint!), but I have not been able to get it lately. If/when it comes into stock, I will surely re-stock these parts.
The UE racer x is without question a superior product, and it also carries with it a premium price.

thanks mike. I guess we got the answer on the questions we had. I still like the price of integy. I like the sound of tougher and lighter to.

This question is out to you mike, does the gorilla maxx suspension weight more or less than UE or Integy? Also whats the durability like? I like the gorilla maxx also because of the price but don't like that it does not come with any knuckles, i don't want to keep using my rpm's.

The G-maxx suspension is lighter than both the Integy and the UE suspension, especially when using 4 shocks(vs. 8). The durabilty is somehwer between the UE and Integy(tougher than the Integy, but the UE is made of 7075, which is a stronger grade of aluminum). I own all three suspensions, and love all three of them for different reasons.

Sweet, another UE supplier. Hard to get UE stuff in europe because stormer quit selling them(?) and ue itself doesn't take CC and nothing is ever in stock at their website. There was one store called gpracing in germany but they are waaaay overpriced.

So you will be able to sell the vbs system?

If they ever come back into stock, i will definately carry them.

Sicco... Planning on Ue's VBS....! you need to lighten your truck a bit with the heavy frame? ;) (sneeck runs an ultimate frame on his Maxx)

Yes I want to loose a few pound's.. Going lipo in a few month's and to save some more weight a vbs is the ticket I think.

I uploaded pictures of my truck to the picture gallery for anyone who want to see her.