Yeti 137SS track options?

[bighuckpunk]

I just got a 137SS track that is going on my converted 129SS Yeti kit.
The 137 track I got is not the same paddle as the 129 track. The edges of the new track are about as stiff as lettuce. My 129 track edges are super stiff in comparison.
Is there a 137SS track that has the same paddle design as the 129SS?

 

[wonderdummy]

I think the only way to get a 137ss is to cut down a reg width track.


Sent from my iPhone using Tapatalk

 

[byeatts]

I have a 137SS, you need to leave portion of the edge support on the lug on when cutting.

 

[bighuckpunk]

Thanks for the replies, I guessed my supplier got me the best setup but I had to ask.
So here are the two tracks. The folks in MN did their best to keep the edge support connected as these are 1/4" wider than stock.
So this is a warning to folks who want to convert a 129SS to a 137SS; you are not going to get the same lug pattern as a 129SS and the paddles will be way softer, especially on the edges.
I don't think my idea of converting back to a 129SS for the spring is optional anymore, it'll be mandatory.
Now back to the build. I'm a little late getting this going for the season so you're welcome for the early snowfall in the Tetons.

 

[byeatts]

it will work Very good in the powder , only the edge will flex back causes lift , Its the fastest and best setup. I have the 129ss, 137SS and 129 freeride , 137ss is King in the deep and turns same as the 129ss, super nimble.

 

[bighuckpunk]

it will work Very good in the powder ,

Yeah, that's what I bought it for and I'm stoked to try it once I get it done.

I don't know why I was hoping it would work in all conditions. I don't expect that of any of my other motorcycles, bikes, skis...

 

[bighuckpunk]

I answered a question in Chat about the build; "what's it take for this conversion?

Throttle Brothers have a 137SS track in stock 307-880-8664. They cut new 12" tracks to 10".

They may have the rails too. Those are harder to find. Camso does not supply them anymore.

Toby Till at RMS might have the rails as well: 720-263-7533.

Both stellar shops and people.

I think you need a track, rails, hyfax for the longer rails and all the little bits that bolt to the rails.

There is a bit of fabricating to bind the rail tips to the rails. I'll post a picture of what I did.

 

[byeatts]

the 137 center lugs are just as ridged as the 129ss, only the sides have a good powder flex after cutting. Its by far the fastest setup as it pulls much faster track speeds than a 12 wide, Far more efficient cutting a 10 inch with path. the 137 and 129 both feel identical when pulling quick turns. I coupled that with my rear air shox adding 11 inches of travel and it is very explosive ride.

 

[bighuckpunk]

Finally enough snow to ride the 137ss and I can report it works better than the 129ss in the deep/light snow, Duh. It still trenches in 4' of light density snow but does better than the 129ss in the 2' deep areas.
And it seemed to climb better than my riding partners 3" lug timber sled kit which is all that really matters
Here's a picture of the only fabricating I needed to do; to hold on the rail tips.

 

[Lachoneus]

Finally enough snow to ride the 137ss and I can report it works better than the 129ss in the deep/light snow, Duh. It still trenches in 4' of light density snow but does better than the 129ss in the 2' deep areas.
And it seemed to climb better than my riding partners 3" lug timber sled kit which is all that really matters
Here's a picture of the only fabricating I needed to do; to hold on the rail tips.

the only 3" lug TS kit is the ARO3, right? You are saying it climbed better than that?

 

[byeatts]

The 137 ss is the real deal. Super fast track speed , The soft outside paddle is what you want for powder, It Climbs and carries so much speed everywhere . I have a 2021 Freeride and 129 ss. Its my favorite to ride by a longshot.

 

[bighuckpunk]

the only 3" lug TS kit is the ARO3, right? You are saying it climbed better than that?

Just based on a hill I had no problems and he did. Different bikes and I haven't ridden both so mine is not a very scientific test.
I do know I'm super stoked to be back on snow and I wouldn't be any less so on my original 129ss setup.
Run what ya' brung!

 

[bighuckpunk]

Update on the 137ss vs aro3: the aro3 climbed better than the 137ss today. Similar snow conditions as last time. He made some set-up changes so now I'm gonna have to fiddle with mine, dang it.

 

[byeatts]

Update on the 137ss vs aro3: the aro3 climbed better than the 137ss today. Similar snow conditions as last time. He made some set-up changes so now I'm gonna have to fiddle with mine, dang it.

on KTM run 14 bike sprocket, track speed will be 31 mph in first gear and give a rear overdrive in 5th. belt is 39/47 then climb with it .what bike is it on ?

 

[bighuckpunk]

2018 Ktm 450sx stock and fast!
41/47 pulleys
13t countershaft sprocket
14t jackshaft sprocket
Upgraded to extrovert drivers which are bigger than the stock 2018's

I like where the gearing is, first gear for everywhere, second gear if I want to go faster and third if I want to fly. I need to get it up to speed before I shift to second. I don't miss having a first gear that I never use.

I'm thinking I need to mess with the angle of the rails, they are 1" up at the back without rider preload.
I also have the shocks minimally preloaded with the clicker out 4 turns.
I75psi in the forks, 7 turns out from hard on both clickers.
The shocks, fork, clickers and rail angle were set up in the shop with no guidance and never touched. It works really well in the bumps and is super fun in the powder so I never thought to adjust them.

This thing still blows me away with how fun and capable it is but after three years and the new longer track I should get off my duff and learn a little dialing it in.

Thanks for the suggestions

 

[byeatts]

2018 Ktm 450sx stock and fast!
41/47 pulleys
13t countershaft sprocket
14t jackshaft sprocket
Upgraded to extrovert drivers which are bigger than the stock 2018's

I like where the gearing is, first gear for everywhere, second gear if I want to go faster and third if I want to fly. I need to get it up to speed before I shift to second. I don't miss having a first gear that I never use.

I'm thinking I need to mess with the angle of the rails, they are 1" up at the back without rider preload.
I also have the shocks minimally preloaded with the clicker out 4 turns.
I75psi in the forks, 7 turns out from hard on both clickers.
The shocks, fork, clickers and rail angle were set up in the shop with no guidance and never touched. It works really well in the bumps and is super fun in the powder so I never thought to adjust them.

This thing still blows me away with how fun and capable it is but after three years and the new longer track I should get off my duff and learn a little dialing it in.

Thanks for the suggestions

Well i run the larger drivers and 14 sprocket with 39/47 and pulls first everywhere which is twice the track speed as you get in 1 st with ewer gearing. GPS reads as high as 33 mph ground speed on the flats,this is on a strong bike @ 4-6500 elevation

 

[bighuckpunk]

I'm guessing our gearing is kind of close as my 41 pulley is bigger than your 39. I'll check the 1st gear ground speed next Monday. I broke my ski and am waiting for delivery.
I ride between 7000-10000' elevation and my bike can't pull second gear unless I can keep it on top of the snow going fast. Too fast for tree riding, for me.
I'll also flatten out my rails as I've recently read is the correct starting point.
Cheers