Center shocks are not a problem, the rear is the BIG problem to have them fitted in the skid and not touching the track.
You should be able to find the center shock at your local dealer or any web site that sells snowmobile Fox shock's online.
The SC-5U uses the old center shock from a SC-2,3,4 and 5 if I remember correctly they are 13.25" C-C long.

 

The rest shock is the original airshock, so I dont want to change that one out. Bit I like to change the center shock. My local dealer can only sell both center and reat together, not separate.

 

You could always order on the internet if your dealer does not what to work with you and order just one.
You could also try ordering a Elka or Ohlin.

 

Yes I can order om the internett. It’s just BRP that dont sell just the center.

 

Just order yourself a rock shock if youre looking for a simple effective upgrade.

 

And use your spring that can stock also. Another place is Monster Performance in the lower 48 if you have a hard time finding Rocks shock. I have one of Rocks center shock now on my 600 expy SE

 

Rock suspension is great.

 

FYI a standard 13.25" Pro-40 race shock will bottom out before the rail bumpers, and bend your cross-shaft. The new Pro-46 race shock is 13 inches, that one works. I made my centre shock 13 inches.

 

I've been following this thread and I'm curious about what the issue is with the rear suspension on the 2023 Expedition SE. I've got one coming and I'm new to Ski-Doo and the Expedition SE is my first Ski-Doo purchase. Majority of riding will be with the wife, pulling a Eskimo fish house and trail riding with a few buddies.

 

What "issue with the rear suspension" are you referring to? There isn't much regarding this skid I don't know about. I've modified the heck out of them for years.

 

One thing about BRP widetracks. Most sleds rely on springs to carry weight and shocks to the absorb energy of bumps. For example an a CC race sled there's a higher % done the the shock. On a WT there's a higher % done by the springs. They aren't intended to absorb the bump energy that race sleds do, and owners tend to load them down permanently with things like rear coffins 🤮 and gear. With a good suspension setup it's literally impossible to load a SWT and run it across a whooped lake without overheating the rear shock and burning it up, there's just too much energy to absorb. I run a 2 inch Fox, same as the one I made for Jamie Penny, it holds 3/4 of a litre of oil and the way I see most SWT load their sleds, it wouldn't handle it either. We could have a stock guy running beside us, bottoming out regularly but his suspension would feel the same at the end of the lake, the shocks don't do any work so they can't get hot. Ours would be noticeably sacked out.

Just to clarify spring versus shock doing the work. If they aren't running fast and rough, you may not benefit from your shock money as much as you think 🤷‍♂️

 

Another thing, speaking of centre shocks. These skids aren't designed, and don't need, relatively to their size, as much centre spring/shock as a sport sled. If you run 200lbs for example, you don't need any preload. I run 185. I've made rear shocks for lots of guys who keep the stock centre and are happy with it. A stiff centre will ruin the sled putting tracks in green woods. Lots to consider.

The number one problem is overloading sleds. People buy a widetrack and the first thing they do is put a 50lb coffin on the back (full of another 30th of "mandatory" gear), a high mounted gas can to make it as tippy as possible, and then a gear bag on top of that gas can to make sure you can't throw your leg over when you really need to. Then they say the sled is tippy and the suspension sucks.

 

Great explanations

 

If you have a SC5U skid and want to upgrade shocks, a easy option that will fit and work would be to consider the Expedition Xtreme shocks, the KYB Pro 36mm shock has high and low speed dampening and is a pretty decent shock.

 

More that the shock needs to be replaced, you need to shorten the rods and event then some people report that the track still hits the shock on occasion.

 

Monster performance sells a nice Ohlin front track shock for the expedition.

 

Since you are norwegian, did you try to contact Lindbäck? He might be able to help you get better shocks..

Lindbäck suspension service | Lakselv

Lindbäck suspension service, Lakselv. 1,307 likes. Bedriften tar service på alle typer dempere til snøscooter, ATV og motocrossykler.

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How about an Exit XO-2 rear shock with that piggyback. Has this been tried?

 

If it is custom made with the resy positioned accordingly it is possible.

I have a Elka stage 4 custom made that works.
This is on a Sport but it is the same challenge.

This is what it looks like.

 

I decided to go with the Rock Shocks. VERY VERY happy with the performance and the price point is even better.

 

I concur. Mark makes a great shock for the money.