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163" x 2.4" Longtrack + 16" x 5'7" Ski = Float

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C
Jun 27, 2014
97
19
8
Looks Killer. Would like to know some details on the bike if you don't mind sharing. The no back fender is sweet and is your exhaust custom?
 
N

n16ht5

Well-known member
Aug 5, 2013
1,553
1,659
113
Pemberton, BC
I think I would have made that rail extension extend into the TS rails much further... hope it works out with no breakage, love to see people experiment
 
J
Dec 3, 2007
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If there is a single ski ride with a real UAC forecaster I want in for sure! Bike looks awesome brett, I'd love to see how it goes, give me a shout if you ever want to get out with another snowbike. P.S. thanks for all the good work you and your coworkers do to keep us safe!
 
B
Feb 4, 2011
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Looks like I'll have a 137" short track for sale, don't think I'll need it anymore.

Seems to turn just fine. Outstanding traction! I predict we'll see more snowbikes with longtracks and fat skis in the future.
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B
Feb 4, 2011
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Oh yeah, Kurt T, I've got a 570 piston in that old 520exc. That's a stock pipe that I chopped in half and opened up a bit more for maximum flow. It is still nice and quiet. I am going to put in a set of 54 fork springs soon.
 
N

n16ht5

Well-known member
Aug 5, 2013
1,553
1,659
113
Pemberton, BC
nice.. glad to see it working so far. yeah, pics of bottom of ski? I think I'll be making a run to port plastics..

nice dynafit setup you have there as well ;)
 
B
Feb 4, 2011
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I don't have a photo of the bottom of the ski but it's just the stock 10" ski with a sheet of 5/8" HDPE bolted on top. So on hardpack, the stock ski is doing the work. Super easy mod, only took a couple of hours. I'll try to take a couple of photos today.
 
C
Jun 27, 2014
97
19
8
Oh yeah, Kurt T, I've got a 570 piston in that old 520exc. That's a stock pipe that I chopped in half and opened up a bit more for maximum flow. It is still nice and quiet. I am going to put in a set of 54 fork springs soon.

Looks good, I too have a 570 kit all built with head and cam. I just went with a set of .60 springs for mine. Two weeks of work left and then it's time to ride the winter away!!!!
 
W
Mar 10, 2010
97
11
8
that thing is a BEAST! What kind of clamps did you use to mount your skis on the tunnel? Interested in how you did that...

Wouldn't want to rip to hard in ski boots though... How are you making that work?
 
B
Feb 4, 2011
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Thanks Newduck, appreciate it.

Riding in ski boots is slightly awkward. Mostly just for shifting but I've adjusted. The boots are ski touring boots so they have a lot of motion. I'm considering fabricating a custom shift lever toe piece. Snowboard boots are easier to ride in.

The ski rack is nothing special at all. The key is to use genuine Voile ski straps.
 

powderzone

Active member
Lifetime Membership
Dec 8, 2013
65
26
18
Calgary
That looks insane. Everyone thought I was crazy back in '98 when I showed up with fat skis to shred the pow in southern BC. Now its the norm.
Will be curious to see if the super long track has the turning radius of the USS Nimitz or slightly less. lol. have fun.
 
B
Feb 4, 2011
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Do not be afraid to go big. This track has been working great for me this season. Granted we have a more supportable snowpack than last year, I go to more odd places and get stuck less. The track demands more power but for me the extra float and traction outweigh the power loss.
 
B
Feb 4, 2011
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I continue to tweak "The Unicorn". I've learned a lot this year after doing some more modifications. Three things have really made this bike awesome for me:

1) I ditched the stock subframe and built a seat that bolts directly to the tunnel frame. This lowered the seat a bunch and put it at a better angle.

2) Added a set of pegs behind the chain case. This puts me more in the center of the bike which I think is crucial for the long track. They are an inch or so lower than the stock pegs.

3) Built a custom bar riser that brought the bars up a bit and back about 8 to 10". This accommodates the rearward riding position.

For me, this was a total game changer. I now stand up almost all of the time in a very comfortable stance. This really distributed the weight much more evenly. So much so that I had to ditch the fat ski because I was getting too much float!

This has worked out so well that I am going to build up my 950 Super Enduro with the same type of set up.

 
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