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First Ride On New Toms Snowmobile Skid

Seabass152

Well-known member
Premium Member
Rode today in good spring snow for the first time after installing a newly designed skid from Toms Snowmobiles. For me, there was a good jump in rear performance when going from my 09 Dragon(with custom Zero Pros) to the stock 11/12 Assault. This skid felt that much better to me again. I liked the moto feeling the new stock Assault rear gave with the increased rebound and livelyness, but couldn't get the rear to stop clanking on g-outs and or keep the front down on climbs. Moving the front mount to the top hole helped with the climbing but then it lost some of it's fun in the bumps and bottomed more. Figured I could live with it but I was at his shop getting my front shocks revalved when he showed me the Polaris skid he's been working on and asked if i wanted to try it.
He now has a skid for the Arctic Cat and the Polaris Pro that uses some of the design ideas from his Evolution and QE Ski-Doo skids.

Only have a few hours on it so far but I like it. The rear sits a little taller and unlike my stock set up, it doesn't blow through the 1st half of the stroke and it has a nice linear feel to it. The stock travel sometimes feels like it has two parts where you feel the point it gets stiffer. I think the rear not wallowing up and down is what made it climb so much better. The front stayed low and way less sensitive to rider input. It was similar to when I moved to the upper hole except that it was more stable and felt like it had more travel available when you hit something during the climb.
Sled felt nice in the bumps, a little like it did when the stock skid was in the lower hole except it feels like you have more travel and it won't bottomout like before. I did speed up the rebound for more pop when doubling the trail whoops and adding a few pounds to the Evol chamber helped handled the g-outs without clanking.

The skid uses a Hi Flow Float in the front and a Evol R in the rear. The settings/pressures I used were Tom's best guesses and is what I ran for most of the day except the changed I mentioned above. One thing I had to do was stiffen up my front shocks(Fox Evol X) to balance it out. That was nice since I had them softer than I wanted when they were matched with the stock rear. This allowed the sled to run flatter on the trail but I didn't notice it affect the sidehilling at all.

I am going to ride a few more times this week and tweak on it. If I have any new findings I will post back. I'll try to answer any questions but Tom is the one to call for the tech stuff. Sorry for the long read but suspension is one of those things that is hard for me explain in a few words.

If anyone in the Truckee/Tahoe area wants to check it out let me know.

Tony
 
On the Pro the rear suspension sags quite a bit and then hits a spot where it feels like it binds up. Ride on the whooped out trail is terrible. Sled performs amazing in deep snow though. I see guys really jumping pros and wonder if they just smash through that hard spot or if the landing is just harsh. I have Toms stuff on a Freeride and and XP and love it. Less money than a complete skid and works as well or better. Is the Toms Pro set up a complete skid or shocks and arms?
 
The set up I have is complete with Ice Age rails built to his specs and I believe they mimic the stock Pro radius up front. Not sure if using the stock rails is an option. I can find out.
A couple of the guys I ride with have Ski-Doos with Toms suspension, motor and clutching. Riding their sleds is one of the reasons I wanted to try his stuff when I heard he was working on Polaris upgrades. From talking with him it sounds like he was able to carry over a lot of what he found that worked well on the Ski-Doos and design that into the Polaris and Arctic Cat skids.
 
I have his suspension and clutching on my Summit and it flat out rips. He told me he had made a major improvement altering the geometry of his XP kits using the Ice Age rails, a year ago, so this would only be available as a complete skid I would bet. He also told me he had nothing planned for the Pro - I'm gonna have to give him some flak for that! Tom knows his stuff!

Have FUN!

G MAN
 
Are you running boost? And did you try having the (Assault) stocker's revalved?

Good report.
 
No boost. PA head, SLP full set, PC-V, Carls primary(bright green) mod with their helix(gold/blk), 68 MTX with 3g in the heel. Nothing like a turbo, but runs and climbs good with a PC 153 track. Ride mostly 6500-8500

I had intended to revalve the Walkers and try some multi-stage springs but I already had the Evol X's sitting around after removing them from my 11 Assault. I wasn't sure if I like the X's before hisrevalving/re-springing of them, after that they were great. That's when we started talking about trying his new skid. I thought I was content with the stockers or maybe just do a revalve, but after riding this set up, I understand what guys are saying that have dialed in suspension and aftermarket skids. I haven't really messed with the settings much either, so I know they can be better. Ideally I need to ride with Tom and Andy and get their input but the snow is melting fast.


Gman- Tom mentioned a while back that he was looking to build a skid that was somewhat modular and could potentially work with all the brands. He worked on the Cat first and then at some point was able to carry some aspects of the design to the Polaris.

Here are some other pics from yesterday

IMG_0117.jpg IMG_0119.jpg IMG_0134.jpg
 
I wasn't sure if I like the X's before hisrevalving/re-springing of them, after that they were great.

That's the whole thing right there - Tom uses high flow pistons and custom valving and when I hear all the BS on the forum about how coil-overs are so much better than any Fox air shock I just roll my eyes. They have NO CLUE what a good air shock does and spew blanket statements about coil overs being so much better, LOL - WHATEVER!

Cheers,

G MAN
 
I admit, I got a little caught up in the coil movement on here lately. But I'm glad I gave the Fox's another try. My wrists hurt a lot less after mounting the revalved X's up for sure. I was a little turned off by all the adjustments at first, but once you get them close you either leave them or tweak'em for the conditions by just using the clickers.
I was also just thinking how nice it was to be able to balance the front in the field with how the new skid rode. Took a couple tries to get the right pressures but I got it close in a short time.
 
Completely agree with Gman. I think all the complaints about Foxes are from guys who buy shocks that aren't set up for a particular sled. Or guys who take them off one sled and just bolt them on another. I have X's on my Freeride and I can make that sled completely un-rideable just with 5lbs too much air and a few clicks the wrong way. If you started with the wrong valving from the get go you wouldn't have a chance. If you have Foxes and hate them send them to Tom. It is pretty cheap to get them re-valved.
I have re-valved stock shocks on my Pro with piggy back reservoirs and while better they are not good. I think putting Raptor Triple rate springs on them would make them even better. At the time I wish I would have just done Raptors. The mods I did cost $1000. Add $300 for springs and I am only about $7-800 from a full set of Raptors or Foxes and heaven. I think Raptors are a great shock but I love the fact that the Foxes save weight and work great too. I weighed my Freeride skid before and after installing Tom's stuff and it was an honest 12lb loss. Not sure on the Pro.
 
Completely agree with Gman. I think all the complaints about Foxes are from guys who buy shocks that aren't set up for a particular sled. Or guys who take them off one sled and just bolt them on another. I have X's on my Freeride and I can make that sled completely un-rideable just with 5lbs too much air and a few clicks the wrong way. If you started with the wrong valving from the get go you wouldn't have a chance. If you have Foxes and hate them send them to Tom. It is pretty cheap to get them re-valved.
I have re-valved stock shocks on my Pro with piggy back reservoirs and while better they are not good. I think putting Raptor Triple rate springs on them would make them even better. At the time I wish I would have just done Raptors. The mods I did cost $1000. Add $300 for springs and I am only about $7-800 from a full set of Raptors or Foxes and heaven. I think Raptors are a great shock but I love the fact that the Foxes save weight and work great too. I weighed my Freeride skid before and after installing Tom's stuff and it was an honest 12lb loss. Not sure on the Pro.

Agreed
 
Seabass did you weigh the Tom's skid before install. Complete but no track?

No I didn't. Felt lighter when lifting both but no idea how much. I'm using a Mountain Machine off-set axle and big wheel kit for right now and that axle has so many parts it wouldn't be an accurate comparison anyway.
 
Rode some more today. Spent a few hours trying different settings on the rear track shock and ski shocks. It's nice being able to set the main the way you want it and then basically dial in the amount of bottoming resistance with the Evol chamber until it's not hitting the stops on the big g-outs. Not worried anymore that my tunnel is going to buckle from the rear clanking.

I found that I have had to add about 30lbs to the ski shock's main to stay in balance with the rear. The sled trail rides a lot flatter now which I like, is still pretty plush and I don't feel like I have lost any sidehill ability.

Conditions today were sketchy with the light rain from yesterday that froze overnight. Some spots were slick and it wasn't to relaxing riding alone without phone service. Noticed a lot of bear tracks and a few bear craps and then a couple hours into it I finally see a bear. The thought of my machine breaking down kept me on edge and I got out of there. Just too scared of bears. Probably have a week or two of riding left around here if you try hard. I'm going to keep tweaking on this and see what happens.

Like I said, if anyone around here wants to meet up and take a spin on it just let me know. I'd be interested in other's opinions.

Here is pic from today

2012-05-04_14-09-54_804.jpg
 
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Seabass did you weigh the Tom's skid before install. Complete but no track?

Got around to weighing both skids. My stock Assault skid came in at 51 lbs. That's with front and back boogies. Toms skid is 37 lbs without boogies. I weighed 2 sets of boogies that I had in bag still from my new sled and they where 3.5 lbs. So real world difference of 10 lbs of unsprung weight. Depending on who you listen to, this can equal anwhere from 1.5 to 2.3 X's the weight savings of sprung weight.

Tom is also looking at stock rail compatability. Looks like it will move the rails back 1" and he is going to verify the scissor alignment this week. Using your existing rails would save you about $350-$400.

Tom also mentioned that he has enough parts right now to build 3 skids and he will sell them cheap this month if anyone is interested. I think he said $1600 but check with him in case I'm wrong.
 
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