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Suspension check - 2010 FE450

Joined Nov 2010
253 Posts | 4+
Salt Lake City, UT
I am getting ready for our annual 4-day spring break ride and I would appreciate some input on my suspension setup before I go. I am really new at suspension tuning and I still don't follow all of the terminology, but I am learning.

* 2010 FE450
* I am an old man (+50) and do recreational riding (no racing). I ride a wide variety of terrain and trail types. This trip will be in southern Utah (San Rafael swell, White Wash, Moab areas), so it will have a mix of sand, rocks, and slickrock.
* I weigh about 203 lbs plus gear comes to about 230 lbs. I also have a rear fender tool bag.
* .48 fork springs
* 8.4 shock spring

The springs are used but the bike is new. I now have about 10 hours on the bike, so I would guess the suspension is sort of broken in.

On my last trip I had the clickers set to "standard". Rear sag was 105mm. The suspension felt plush on rocky roads and handled small ledges fine (at least compared to my last bike). In the whoops the bike felt spongy (is that what "wallowing" means?). It felt like a pogo stick. I think I was riding the spring too much.

But my biggest problem was in soft gravely wash bottoms. The front end was very unstable. I couldn't get up to speed. It was scary. I suspect some (most?) of that is technique (I am not very good in sand), but it was much, much worse than my last bike.

So, in preparation for my next ride I made the following changes:

* Increased rear sag to 114mm. This has 10mm of preload on the spring, which I think is about right.
* Increased the front preload from 2 (standard) to 4 (sport). I thought this would reduce the front sag, but it went up (from 46 to 58 - which seems high). Not 100% sure it was measured correctly??? My thought was to lower the back and raise the front to improve stability. Does this say I need stiffer fork springs (ie, .50???)
* Moved the clickers to "sport".
* I then changed the clickers to compensate for the stiffer springs. Here are my settings:

Front:
* CD 20 (half way between standard and sport)
* RD 16 (beyond sport)
* Preload 4

Rear:
* HSCD 1.5 (standard)
* LSCD 17 (half way between standard and sport)
* RD 20 (beyond sport)

Do my changes seem reasonable? Or did I mess things up worse?

I just want to get a sanity check before I go since it will be hard to make any significant changes while on the trip.

What things should I look for and what fine tuning might I want to try while on the trail? I have printed out a couple of good tuning guides which I will carry with me, but any thoughts on what might be an issue with this setup would be appreciated.
 
FWIW,

Set the sag in the back as per the manual, static and rider sag both if possible according to your manual.

Set the clickers per the manual as well, this is the best ride you can get given the springs and valving you have. If you deviate beyond these settings the suspension will work worse.

If you wish to gain stability don't do it by lowering the back by taking less pre load out of the rear end and putting more on the front. Try pushing the tubes down to flush in the front, 5mm at a time, or until flush.

Hope this helps,

Dale
 
I can get the rear sag dialed in as per the manual okay. I increased the sag some because I have seen several posters indicate they got better results with the sag up near 115mm. The "lower the back end" was my self rationalization as to why that might work???? But it seems it would make the bike even spongier in the whoops.

I have read comments indicating that with heavier springs you need to have more rebound dampening than compression dampening to compensate for the stiffer spring. Is that not true?

Should I stick with "standard" clicker settings for my riding style? Or move to "sport" or "comfort"? Some day I want to spend time testing different clicker settings, but I don't have time prior to this upcoming trip.

I have never found any good advice on how to set the front preload. It seems my front sag is too high, but I am not sure what the ideal setting is. Do I need stiffer front springs? Are there some guidelines for setting the preload?

My fork tubes are already flush with the triple clamp.
 
I have the front set to the sport setting and the rear is standard.
I ride technical trails on the west coast and have not taken my 2010 FE450 to Baja to ride whoops.
The rear end on the Bergs needs to be softer then the front for my kind of riding.
I am sure a good suspension tuner could help us a lot!
 
well DeeG if you're going to quote me at least use my name! we're all human with a face so say my name dude! wallowing is what hippos do all day in the hollow - remember?

I have 48s front and an 84 rear like you but I weigh 214.

I had the sag at 95 at the weekend and it was whap-whapping with ease so I daren't go any lighter on the rear and the preload is now very high. methinks close to 88 time.

the front is harsh on the face shim with nothing behind it I'm afraid = all mouth and triusers!

suggest you whack the preload right up and the comp off.

either way, if you put more weight on the front you'll get more grip. so either jack the rear preload as said: or lower the clamps or put the rear wheel further back with a gearing change or.....

regards

Taffy
 
Taffy - sorry, I didn't know I was quoting you. I have seen "wallowing" in several posts, but your phrase doesn't sound familiar.

But you bring up some other terms that I don't understand:

* whap-whapping. Is that good or bad? What does it mean?

* face shim ?

* all mouth and triusers ? Is there an "American" translation?

Still mostly clueless,
Dee
 
DeeG said:
Taffy - sorry, I didn't know I was quoting you. I have seen "wallowing" in several posts, but your phrase doesn't sound familiar.

But you bring up some other terms that I don't understand:

* whap-whapping. Is that good or bad? What does it mean?

* face shim ?

* all mouth and triusers ? Is there an "American" translation?

Still mostly clueless,
Dee
wallowing is pretty much my phrase

whap-whapping is an oscillation on the rear when accelerating still cranked in a bend

face shim is reference to the slightest bump being felt through the bars. it isn't backed up by much IMHO and therefore is all face shim with nothing behind it.

this is called 'a lot of front' with nothing behind it and AKA as 'all mouth and trousers' just google it next time.....

regards

Taffy
 

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