Help with springs for 2011 TE570

Hi All

First post to the forum, but I have been reviewing for a while, some good contributions. I'd appreciate some of the forums advice on suitable replacement springs on my 2011TE570. The forks are going in this weekend for a seal change, I may as well ask for heavier springs to be fitted (over stock), but not sure how 'heavy' to go.

I'm approx 96Kg, 6'2", wrong end of my 40's and an OK rider, not fast, but not slow. Bike used for weekend trails and probably 3-4 hare and hounds events each year.... maybe the same on practice tracks.... couple of trips to the welsh hills etc, you get the picture.

After some research, I was thinking of 80nM on the rear and 4.8 on the front... do you think i'm in the ball-park.... not bothered to try and setup the stock suspension as it's clearly way too for for my excessive mass!!!!

Thanks in advance

Chris

Thanks T Stretch......

May just go up one 'weight' on the front if the dealer suggests, otherwise I'll go with you suggestion, unless anyone else has an advice/experience

Cheers

Chris

Thanks Taffy

The shock and legs are with AMS already, but thanks anyway.

I've asked them to fit 50's in the front (5.0 N/mm).

I'm not sure if to go 80 N/mm on rear or 84 as you suggested..... Here's my concern:

I only had the bike a week, but have noted that it seems to be prone to head shake. The head-stock was over-tightened (suspect previous owner was struggling with shake) and the rear wheel bearings are shot (will replace this weekend). In my head, I'm thinking a harder read would cause the bike to site more on the front, making the steering faster, and (I in my head, I'm thinking....) more prone to shake. However, I read in this forum that someone was suggesting their head-shake issue was a result of too soft a rear spring. So I'm confused.... are they suggesting that a soft spring would cause you to run with more pre-load (more weight on front) than a hard spring.... or is my raster steering (due harder rear) thinking flawed?

I've just found the 'berg Shock/Fork setting list (2011 cc forks) ..... its actually suggesting 5.0 N/mm front and 80 N/mm for my weight.

I can save £90 if I get it right first time

Cheers

Chris

New springs fitted, front and rear. 5.0 on front 80 on the rear (I asked for an 84 in the end but they fitted an 80...never noticed till I got home.... Doh!!).

Set rear to 10mm pre-load before installing and got: 30mm static sag & 112 with me on it...... So Taffy, I'm thinking your suggestion of 84 on the rear may prove to be correct correct.

Set the clickers to standard (20 l/s comp, 1.5 h/s comp, 24 reb).... try out at fat cats tomorrow.

Chris

Interesting (and unproductive) day at Fat Cats (Doncaster, England), trying to setup the suspension on the '11 FE570. Fat Cats is a sand practice track (actually it hosted a round of the British MX Championship last month), its well groomed each day, but cuts up quickly into relatively deep sand.

So the story so far, fitted 80N/m spring on rear (72 std) and 5.0's in forks (4.6 std), 10mm pre-load giving an OK 30mm static sag and 112mm rider sag. All other settings are standard.

First off, had to really wind the shock rebound in, 4-6 at a time.... finally going with 4 clicks out only (24 standard), even then a mate was also thinking it was only just enough..... Wonder if the stock is OK???

Given I also rode a 2011 Ktm SX350 and a 2008 SX 250F, I have to say the 'bergs front was very poor. it had no control in the corners (very loose, rutted but soft sand), it would not keep a line (unlike the two SX's that managed it much better, though not perfect either). Tyres were new Metzler Six Days extremes 14psi, so I'm ruling those out.

With regards to the rear, I'm happy with it now, though I'll add some compression when I get chance to remove the shock.

The problem is definitely the front.... just not panted and will not hold a line in soft sand, they feel OK (perhaps damped a little soft), I can't believe the problem is still with the rear .... so don't know were to go next....

One observation (I think), is that when i put the final last few clicks onto the rear (getting to a rebound of 4 clicks out), although the rear felt MUCH better, it seemed to make the front even worse (failing to hold a line in soft sand corners).... I say 'I think' simply because the track was cutting up badly, but having taking the change in track condition into account, I still feel the front got worse when I added more rebound to the rear...... Not sure where to go next (with the front)... any thoughts?

Chris

Taffy

I'm trying to work out how to adjust the fork pre-load..... I can't find anything in any KTM or Husaberg manuals i've looked in, plus the WP site is not exactly useful. I've got the compression bolt removal tool, but do not want to apply too much pressure (to the top nut) until I work out what does what (have removed the air bleed screws and compression adjuster knob). The 'fork setting list' I have for the Husaberg closed cartridge forks, has a row for, quote "Preload Adjuster (groove from above)", but its the only section on the form without an entry. Given it says "groove from above", I can only assume that you wind it in, and therefore they are currently fully backed off (no preload).

Do I sit down? no, I stand up, but even with the rebound set at 4 clicks out, it was kicking back much worse than the two SX's on a particular pair of big 'whoops' going into a bend (so off throttle).

I would have thought that by the time I've turned (the rebound adjuster) all the way in, the rebound would be dead slow, but there was hardly any noticeable difference between the standard setting (24 clicks out) and all the way in. That's what made be think there may be a fault with the shock. Does yours have a significant effect?

Cheers

Chris

Bollox..... just used the 'compression bolt removal tool' to undo the 'inner' nut and I'm pretty sure it's not the adjuster as a bit of fork oil pissed out as I unscrewed it (probably 5cc).... shut it all back up until I worked out how it all hangs together, what adjusts what etc.

If anyone has seen a good video or description of how to strip the forks, I'd appreciate it, as so far I've not found much of any use for WP cc forks....

Cheers

Chris