Forum menu
Pike set up- it jus...
 

[Closed] Pike set up- it just feels 'wrong' (xfirm spring)- help

Posts: 621
Free Member
 

Hora, just ride the thing for a while before you dismiss it!

Obviously the fork will feel stiff when coming from being undersprung. Stick with it. I'm only just moving to a firm (from x-firm) having dropped a stone to 13.5. It still feels a tad too soft for me, I bottom it out in regular riding.

( high speed damping is for when you are riding fast and other misconceptions)

You called me out on this once before and it irked me, but I couldn't be arsed to discuss.

You're saying that the suspension will not see higher shaft speeds when the bike is going quicker over rough terrain?

Even if that is the case- the difference that the high speed compression adjustment makes IMVHPO can only be _felt_ at high bike speeds.

If you want good low speed compression with no spiking for great descending you would be better running the compression fully closed or very near fully closed & the gate near minimum. This will reduce brake dive but also allow the fork to easily overcome any square edge bumps or wet roots. This is how I run my forks.

Yes, this is spot on. The RS manual is wrong in this respect.


 
Posted : 27/01/2010 12:16 pm
Posts: 0
Free Member
 

tinsy- the diff between firm and xfirm can not be massive can it? Im getting nowhere near full travel on xfirm- its like a stiff stick (the forks).
But you bottoming the medium quite hard so firm is the answer.

Until you got the spring rate at least close your wasting your time fiddling with the other settings, if you spring rate is wrong you cant make up for that with twiddling knobs.


 
Posted : 27/01/2010 12:17 pm
Posts: 0
Free Member
 

I sometimes think too much emphasis is placed on preventing fork dive. In my not-very-techy head a "plush" fork will dive under hard braking unless there is some serious (low speed compression?) damping. But surely the more you try and add clever damping the more it impacts on how plush a fork is and how easily it gives up its travel, particularly at the start of the stroke.

My fork is super plush, I get plenty of travel out of it, it is great to ride but it dives like a guillemot when braking hard. The latter issue isn't really an issue because I only brake hard at the bottom of the hill ๐Ÿ˜‰

Oh, Sorry Hora, this is no use to you at all ๐Ÿ˜†


 
Posted : 27/01/2010 12:18 pm
Posts: 0
Free Member
 

stilltortoise compression damping doesnt alter the spring rate it only affects how fast the fork can react to a bump, if your close with the spring rate you can fine tune the ride with the damping but you cant make up for a soft fork with it. So yes your right really, overdo the comp damping and you can get a softly sprung unforgiving ride.


 
Posted : 27/01/2010 12:21 pm
Posts: 0
Free Member
 

Retro - High speed damping refers to the speed at which the suspension is moving - not the bike. You can get high speed movement of the suspension at low bike speeds and low speed movement of the suspension at high speeds.

Of course the more speed the bike has the more high speed movement the suspension will get but also the more low speed movement of the suspension.

High speed movement of the suspension occurs with such things as hitting a square edged bump. Low speed is such things as brake dive.


 
Posted : 27/01/2010 12:21 pm
Posts: 19914
Free Member
 

PP - being a self proclaimed expert on them, did you test lots of different settings extensively to come to your conlusion?

Which conclusion are you talking about? ๐Ÿ™‚

If you mean the varience between springs, well that's just a gut feeling I've had for a while based on my own experience with one fork, and others I've read on here, like TJ. There might be nothing in it, and I have no way of proving it as I've already said. ๐Ÿ™‚

If you mean RS recommended spring weights being a bit on the heavy side, well, that's my own findings from setting up my own (Coil and air) forks and helping others to do the same, advice I was given by TFTuned, and a lot of evidence on it on here!

If you mean damping settings, that's basic suspension set-up facts that you can read in a lot of places. I will say that there's a LOT of misinformation and BS talked about suspension in the MTB world, in mags especially. But if you take the time to learn what the adjustments do, and how to get the effect you want, then it's all pretty basic stuff really.

I enjoy faffing, I enjoy learning new stuff, I understand suspension and how it works. That's just me. ๐Ÿ˜€


 
Posted : 27/01/2010 12:23 pm
Posts: 0
Free Member
 

i've had a 'normal' (standard) u turn spring for pikes sat in my house for months if not longer.

available if anyone wants to swap back to regular?


 
Posted : 27/01/2010 12:24 pm
 hora
Posts: 0
Free Member
Topic starter
 

tracknicko I have two red's sat doing nowt. Im guessing at somepoint in the past I sold some Pikes with the wrong spring fitted for the poor ****er!


 
Posted : 27/01/2010 12:27 pm
Posts: 19914
Free Member
 

I'll try the standard spring first and go through the normal set up- will run compression at almost clockwise etc etc. I just dont see the point of throwing more money at a problem. ยฃ45 is daft.

Hora, you're getting all wound up about this now aren't you?

IIRC you ditched some other forks (Air Pikes?) because you coundn't get them to work for you, yes? (Apologies if I'm wrong here)

You should be able to sell the X-firm fairly easily and get most of that money back, and it's a lot cheaper an easier than didtching the forks.

First up, you won't mask having the wrong spring in there by trying to compensate with damping settings. It won't work. You'll end up with a fork that feels utterly cack.
I wish I lived closer to you, I'd probably be able to convince you by letting you ride mine with a heavy spring fitted. ๐Ÿ˜€ And then help you sort the other setting out properly.... ๐Ÿ˜€


 
Posted : 27/01/2010 12:30 pm
Posts: 0
Free Member
 

I'm bowing out of this because of course you're all talking spring rates and I have air forks ๐Ÿ˜† ๐Ÿ˜†


 
Posted : 27/01/2010 12:30 pm
Posts: 0
Free Member
 

ah well hora! saw an oppurtunity to make 5 squids and help someone out. maybe ill cut it up and use it as a pen holder?

give it to the mrs as a valentines day present?


 
Posted : 27/01/2010 12:31 pm
Posts: 0
Free Member
 

Hora, you're getting all wound up about this now aren't you?

I can see what you did there PP... nice.


 
Posted : 27/01/2010 12:33 pm
Posts: 19914
Free Member
 

I'm bowing out of this because of course you're all talking spring rates and I have air forks

Air forks still have a 'spring rate'! It's just that you change it with a pump, not by swapping coils. ๐Ÿ™‚

I see what you're saying though.... ๐Ÿ™‚


 
Posted : 27/01/2010 12:33 pm
Posts: 0
Free Member
 

stilltortoise - Member

I'm bowing out of this because of course you're all talking spring rates and I have air forks

air forks have a spring rate as well

*runs away and hides*


 
Posted : 27/01/2010 12:34 pm
Posts: 19914
Free Member
 

I can see what you did there PP... nice.

What? I'm seriously just trying to help him out by suggesting that he's better sorting the forks he has, rther than getting in a tizzy, as he seems to be. Really I am. ๐Ÿ™‚


 
Posted : 27/01/2010 12:35 pm
Posts: 19914
Free Member
 

air forks have a spring rate as well

*runs away and hides*

TJ, stop it you bad, bad man! I put that in quotes just because I knew 'someone' would argue! ๐Ÿ˜‰ Just a turn of phrase to illustrate a point, nothing more! ๐Ÿ™‚

EDIT
I'm not getting drawn into this argument either. I've still not a had a chance to read that stuff you sent me on 'understeer' yet. I do get the feeling we could be a right pair of sad old anoraks if we got together over a pint.... ๐Ÿ˜‰


 
Posted : 27/01/2010 12:37 pm
Posts: 0
Free Member
 

pp

Hora, you're getting all wound up about this now aren't you?

coil spring, wound up... you didnt mean that? I laughed anyhow... ๐Ÿ™‚

Hora, your medium spring was too soft the xfirm was too hard, now try and work out what spring rate you need...... FIRM.


 
Posted : 27/01/2010 12:38 pm
Posts: 19914
Free Member
 

LOL!!

Ahh, I see now. Sorry. No pun intended! ๐Ÿ˜€


 
Posted : 27/01/2010 12:40 pm
 GW
Posts: 0
Free Member
 

thanks for your detailed reply Peter, but "no" would have sufficed ๐Ÿ˜‰


 
Posted : 27/01/2010 12:47 pm
 hora
Posts: 0
Free Member
Topic starter
 

Over to classifieds I go


 
Posted : 27/01/2010 12:51 pm
Posts: 0
Free Member
 

PeterPoddy - Member

I do get the feeling we could be a right pair of sad old anoraks if we got together over a pint.

๐Ÿ˜ณ you might just be right. what actually makes this worse is I understand the theories on all this sort of stuff from much reading over the years and much tinkering but do not have the skills to make us of this knowledge when riding. Is that similar to ATGNI? "all the knowledge but non of the skill"?


 
Posted : 27/01/2010 12:55 pm
Posts: 19914
Free Member
 

thanks for your detailed reply Peter, but "no" would have sufficed

I make no apologies for giving a thorough answer! ๐Ÿ˜€


 
Posted : 27/01/2010 12:59 pm
Posts: 0
Free Member
 

PP asking TJ out online shocker.... rekon your up for the stoker eh PP. ๐Ÿ˜‰


 
Posted : 27/01/2010 1:09 pm
Posts: 621
Free Member
 

Retro - High speed damping refers to the speed at which the suspension is moving - not the bike. You can get high speed movement of the suspension at low bike speeds and low speed movement of the suspension at high speeds.

Yes, I know! ๐Ÿ™‚ I have never said differently.

Of course the more speed the bike has the more high speed movement the suspension will get but also the more low speed movement of the suspension.

I think we broadly agree then. You can feel the effect of HS damping settings vastly more at higher (bike) speeds.


 
Posted : 27/01/2010 1:17 pm
 LoCo
Posts: 0
Free Member
 

Hora

Where you based? Are you visiting south wales soon?

Will happily meet you and set you forks up for you.


 
Posted : 27/01/2010 1:51 pm
 hora
Posts: 0
Free Member
Topic starter
 

Loco- very kind of you. Not for a while- Lakes this weekend then Peaks week after. Thank you though. ๐Ÿ™‚


 
Posted : 27/01/2010 1:59 pm
Posts: 13291
Free Member
 

this is why i prefer air-sprung forks. much easier to fine tune and less initial faffing.....


 
Posted : 27/01/2010 2:08 pm
Posts: 23334
Free Member
 

alpin - Member
this is why i prefer air-sprung forks. much easier to fine tune and less initial faffing.....

followed by years of poor performance. seems like a good trade off to me.


 
Posted : 27/01/2010 2:09 pm
Posts: 0
Full Member
 

This is really interesting! (I think I may be an anorak too..)

In particular the interaction between compression and gate as described by TF, I had not appreciated how they worked together at all. At teh moment I think I'm doing to opposite to what Mr Flooks does, must try to other way and see what its like!


 
Posted : 27/01/2010 2:19 pm
 hora
Posts: 0
Free Member
Topic starter
 

It might not be the spring. I've just described the symptoms to a expert and it could be lost oil into the lowers- an oil lockout and (fix = need a seal kit).

*Just for info incase anyone else comes across this and does a search on STW (will report back). The forks are still under warranty.


 
Posted : 27/01/2010 3:31 pm
 hora
Posts: 0
Free Member
Topic starter
 

Right its a Motion control seal blown/oil dropped into the lowers causing a lockout. Apparently it can be common on RS forks. FYI.


 
Posted : 27/01/2010 5:13 pm
Posts: 19914
Free Member
 

Hora, OK, I've had that happen to mine and, yes, indeed it as quite common. But from your OP there's NO WAY ON THIS LITTLE EARTH I would have been able to tell that was the problem.
๐Ÿ™‚

The main symptom is a gradual loss of travel until you've only got about half of it left, and it fells harsh as hell when it bottoms out.
Also, mine was under warranty too, but it's such an easy fix it's quicker and cheaper to DIY (If you know what to do, it's 2 O rings, and about 15 mins work) than send the fork back.....

Don't ask me to explain it though. Can't be bothered, TBH. ๐Ÿ˜€


 
Posted : 27/01/2010 5:18 pm
Posts: 0
Free Member
 

I've seen/felt that problem happen to a mate's boxxer and my recons, and my reaction was - 'oops, that'll be ****ed then'. Not 'ooh that feels a bit oversprung'! You're always good value, Hora ๐Ÿ™‚

It is a pretty easy fix, the SRAM instructions are very good, and it just involves swapping a few o-rings.


 
Posted : 27/01/2010 5:20 pm
Posts: 0
Free Member
 

...like he says!


 
Posted : 27/01/2010 5:21 pm
Posts: 19914
Free Member
 

and my reaction was - 'oops, that'll be ****ed then'. Not 'ooh that feels a bit oversprung'!

You're quite right, that's what it feels like: Utterly buggered.


 
Posted : 27/01/2010 5:22 pm
 hora
Posts: 0
Free Member
Topic starter
 

Ok. Hey I explained this and thats what came back. Don't shoot the messenger!

There is one check I am going to do tonight-
Undo the spring top-cap, then compress the fork, if the fork bottoms out early then you've definitely got an oil lockout.


 
Posted : 27/01/2010 5:24 pm
Posts: 0
Free Member
 

...you can also get that from simply having too much oil in the moco side I think.


 
Posted : 27/01/2010 5:30 pm
Posts: 19914
Free Member
 

you can also get that from simply having too much oil in the moco side I think.

It's possible, yes, but that would ahve to be something you've done yourself. Oil doesn't appear in there by magic..... ๐Ÿ˜‰


 
Posted : 27/01/2010 5:37 pm
Posts: 19914
Free Member
 

Hora, no need to undo the spring really. If it's leaking, a quick bounce on the bars will reveal a definate stop at about half travel.... ๐Ÿ™‚


 
Posted : 27/01/2010 5:39 pm
Posts: 0
Free Member
 

yes, I may be speaking from experience here ๐Ÿ˜ณ

But who knows what goes on in hora world? ๐Ÿ˜†


 
Posted : 27/01/2010 5:40 pm
 hora
Posts: 0
Free Member
Topic starter
 

...you can also get that from simply having too much oil in the moco side I think.

Talk to me...

I used a syringe and injected circa 15ml into the bottom of each lower when I bought the forks. Should i drop this to circa 5mm?? Hmmm


 
Posted : 27/01/2010 5:48 pm
 hora
Posts: 0
Free Member
Topic starter
 

hora world is worrywold.

right- will bounce when I get in and report back.

You guys also realise that I my principle mechanical ability is a claw hammer dont you? ๐Ÿ˜†


 
Posted : 27/01/2010 5:49 pm
Posts: 0
Free Member
 

I used a syringe and injected circa 15ml into the bottom of each lower when I bought the forks.

that is fine Hora, it only causes the lock if you put it in the moco chamber, not the lowers.


 
Posted : 27/01/2010 5:49 pm
Posts: 19914
Free Member
 

I used a syringe and injected circa 15ml into the bottom of each lower when I bought the forks. Should i drop this to circa 5mm?? Hmmm

You bought them used and serived them yourself IIRC?

What did you actually change/remove/add/do?

(Not taking the pee, really trying to help you out. ๐Ÿ™‚ I'm off home in a mo' feel free to email me direct and I can talk you through it)


 
Posted : 27/01/2010 5:54 pm
 hora
Posts: 0
Free Member
Topic starter
 

You bought them used and serived them yourself IIRC?

Brand new 3months ago.

What did you actually change/remove/add/do?

Just the above along with the stiffer spring.

Heavy bounce/body over the forks- 50%, just under the 'U' graphic on the stanchion. I can get abit more (inch)- however it involved basically throwing 100kg's ontop of the forks with alot of effort!


 
Posted : 27/01/2010 7:00 pm
Page 2 / 3