The Timbersled Mountain Horse is a snow bike conversion kit for your dirt bike that can be in-stalled and removed easily to make your bike a 4 season machine. The Mountain Horse is an extreme snow machine that will allow you to go places you have only dreamed of going. From boondocking through the tightest trees, to side hilling and climbing the steepest mountains, to jumping or racing with your buddies. Riding a Mountain Horse is easy to learn and will give you confidence to go places and do things that you would never do on any other snow machine.
The Mountain Horse is the First Ever Snow Bike Kit Designed for the Mountains (Patent Pending). Riding a Mountain Horse snow bike provides the same enjoyment as snowmobiling but with its own unique characteristics. A bike and a sled can go similar places in the mountains but the bike can take a completely different route. Simply put, a snow bike can go places a sled cannot. A sled can go straight up a hill better than a snow bike because of the horsepower they have, but then they have to come straight back down due to their lack of maneuverability. Sleds are much heavier and have a planted ski stance making them hard to side hill and perform off camber turns, requiring a lot of strength and experience to do this. Snow bikes are about 200 pounds lighter than a sled. When riding a snow bike you balance it upright the same as you would on any bike, but when you stop, it sticks in the snow and holds itself up without having to put your foot down.
Its handling is much more accurate and will fit through tight areas like between trees and across narrow snow bridges. A snow bike also has much more control going down hills than a sled. You don't need to go straight down with the possibility of getting out of control. If it is too steep or has too many obstructing trees to go straight down, you can side hill and do switch backs similar to what you do on snow skis or a snow board. With this technique you are able to stop in the middle of a steep hill if you choose to.
This amount of control will give you the confidence to safely go and explore areas that you always dreamed of going. On a snow bike you don't have to stay on trails like when riding dirt bikes. Snow biking gives you the freedom to fly through the trees, up and down mountains, across powdery meadows, through ravines and ditches, across creeks, or find fresh tracks no matter how torn up your normal riding area is.
- Kit comes completely assembled and ready to install
- Complete Kit includes everything needed to convert your dirt bike to a snow bike
- Standard kit color is satin black. Custom colors are available for an extra charge.
- Kit bolts to your bike with no modifications (except KTM 690)
- Note: Most kits require a 13 tooth engine sprocket (see Fit Kit Chart)
- Approx. Freight cost: $200-$300 US, $250-$500 Canada/Alaska, $600-$1000 International
- Full line of add on goodies located on the Accessories Page
- Patent Pending
- For fit kit specs, parts info and ordering, see Fit Kit Chart
- Special frames (KTM 690, Husqvarna 511, Husaberg 650) must be ordered prior to August 1st
- Build your kit now with the Snow Bike Builder
- Replacement Parts
 Sidehilling |  Racing |  Powder |
 More Powder |  Big Drops |  Sidehilling |
Mountain Horse Information
The Mountain Horse Snow Bike conversion kit is the
First Ever Snow Bike Kit Designed for the Mountains (Patent Pending).
Riding a Mountain Horse snow bike provides the same enjoyment as
snowmobiling but with its own unique characteristics.
A bike and a sled can go similar places in the mountains but the bike
can take a completely different route.
Simply put, a snow bike can go places a sled cannot. A sled can go
straight up a hill better than a snow bike because of the horsepower
they have, but then they have to come straight back down due to their
lack of maneuverability.
Sleds are much heavier and have a planted ski stance making them hard
to side hill and perform off camber turns, requiring a lot of strength
and experience to do this.
Snow bikes are about 200 pounds lighter than a sled.
When riding a snow bike you balance it upright the same as you would
on any bike, but when you stop, it sticks in the snow and holds itself
up without having to put your foot down.
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The track and ski are more stable on the snow than the tires are on the dirt, so you are able to travel across the side of a hill as if it were flat ground without worrying about the bike slipping out from under you. When you climb a long steep hill you don't need to go straight up and down several times to make it to the top like you would on a sled. You just take off side hilling and zigzag your way to the top with ease and confidence. You can also stop on the side of a hill, have a look around and then take off again without getting stuck. It is much easier to go where you want on a snow bike. |
Its handling is much more accurate and will fit through tight areas like between trees and across narrow snow bridges. A snow bike also has much more control going down hills than a sled. You don't need to go straight down with the possibility of getting out of control. If it is too steep or has too many obstructing trees to go straight down, you can side hill and do switch backs similar to what you do on snow skis or a snow board. With this technique you are able to stop in the middle of a steep hill if you choose to.
This amount of control will give you the confidence to safely go and explore areas that you always dreamed of going. On a snow bike you don't have to stay on trails like when riding dirt bikes. Snow biking gives you the freedom to fly through the trees, up and down mountains, across powdery meadows, through ravines and ditches, across creeks, or find fresh tracks no matter how torn up your normal riding area is.
- Designed to resemble the layout of a snowmobile utilizing some of Timbersled's snowmobile technology
- Kit bolts onto your bike with no modifications (simply remove and replace parts)
- Takes about 2 hours to install kit
- Snow Bike system comes as a complete assembled unit that is ready to install
- Snow Bike kit is the same for most dirt bikes and uses a fit kit to adapt it to each make and model. This makes it simple to adapt to a different bike.
- Kits available for late model dirt bikes that are 250cc and larger (450cc recommended)
- Standard kit color is all black (Custom colors available)
- Full line of add-on accessories available (Gas can, Cargo bags, Transportation wheels, Lifting jack stand)
- Timbersled is constantly innovating and improving the Mountain Horse, see what's new this year!
 ST Kit on Kawasaki KXF450 |  ST Kit |
The ST (Short Track) kit is our standard and most popular snow bike
conversion kit.
It includes a 120" long track that is 12.5" wide with 2" tall paddles.
This kit provides the best maneuverability and control for mountain
riding along with the best power to traction ratio to utilize the power
of a dirt bike as small at 250cc.
However we have found that the 450cc motocross bikes have the best power
to weight ratio out of all dirt motorcycle classes.
The kit provides plenty of storage space on the tunnel for gas can and cargo bags to pack all your needed gear.
 LT Kit |  LT Kit on KTM 530 |  LT behind ST for comparison |
The LT (Long Track) kit is the same as the ST but with a longer track.
The kit offers a 137" long track that is 12.5" wide with 2" tall
paddles.
This kit provides 20% more traction in deep snow over the ST kit and
will give you a more secure feeling on a steep side hill allowing you to
handle more extreme situations due to its added traction and longer
foot print.
The down side to having the longer track is that it will reduce the top
speed of your bike on the trail by approximately 8 mph.
It will also reduce the maneuverability simply because it is longer.
The LT kit really shines for cross country riding when mounted to a
suitable bike.
We recommend that it is used on a 500cc or larger bike.
Note: This kit uses the same length tunnel as our ST kit
so it can be converted to an ST simply by purchasing a shorter track and
rails.
 SX Kit on Honda CRF450 |  SX Kit |  SX 3rd Shock |  SX narrow profile |
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The back suspension in Mountain Horse snow bike kit is much like a
snowmobile suspension; it moves up and down inside the track and has 13"
of vertical travel at the back bumper.
It uses Timbersled's legendary Mtn. Tamer suspension system that we
manufacture for mountain snowmobiles.
This suspension provides the ultimate control and deep snow traction
along with a smooth ride quality.
The Mtn. Tamer is truly the ticket to the success of the Mountain Horse
design.
The moving motion of the Mtn. Tamer suspension is not a single
action movement like on a motorcycle, it is a dual action motion that
lets it automatically adjust on uneven terrain by allowing the front and
back half of the suspension to move up and down independently as is
travels over the bumps maintaining maximum traction on the snow.
The Mtn. Tamer suspension uses 2 precision tuned FOX Zero Pro Shocks
with coil springs and internal jounce bumper bottom out systems.
The arms are constructed of tig welded 4130 Chrome Molly steel tubing.
All moving parts are bushed and all shafts are hard anodized aluminum.
The slide rails use snowmobile style hi-fax for easy replacement and
include an 8" 2-wheel axle assembly that is adjustable for proper track
tension.
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The track on the Mountain Horse forms a 20 degree approach angle in the
front; this approach angle allows the bike to continually climb on top
of the snow without trenching.
It is driven off the front inside of the track.
The direction of the rotating torque causes the weight of the snow bike
to transfer to the back and onto the track to create more traction from
proper weight distribution when on the throttle.
The track is cut flat on top of the paddles, not rounded like a tire.
The fiberglass stiffener rods that are molded inside the track are 3"
narrower than the width of the track; this allows the outer 1 1/2" of
the track to be flexible giving your bike a sweeter roll center making
it feel more like a tire.
The flat topped track allows your snow bike to stand up on its own when
sitting on a flat surface or on the snow without the need of a kick
stand.
This design also provides the best possible traction in the soft snow.
The track design is a Camoplast Challenger Extreme that is commonly used on snowmobiles.
It is a single ply, 2" paddle by 12.5" wide by 2.86 pitch and comes in 2 different lengths: 120" (ST kit) or 137" (LT kit).
The track uses an 80 durometer rubber that is stiffer than our original model.
Note: The SX kit uses a different style of track.
It is 2" narrower and has a thicker paddle and a harder 87 durometer rubber.
The track on the SX is a Camoplast Rip Saw, 1-3/4" paddle by 10.5" wide by 2.52 pitch by 121" long.
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The backbone of the Mountain Horse assembly is a uniquely designed,
extremely strong tubular sub-frame.
It is constructed of tig welded 4130 Chrome Molly steel tubing.
The sub-frame bolts to the bike frame in the factory swing-arm location
using the stock swing arm pin.
Then it is secured with a solid aluminum strut-rod that bolts in place
of the factory back shock and down to the snow bike sub-frame.
This triangulated structure rigidly connects the snow bike kit to the
bike frame making the assembly a single rigid unit (it does not pivot or
move like the stock swing arm suspension). All other components of the
snow bike kit such as the tunnel, Mtn. Tamer rear suspension and drive
system are mounted to the sub-frame.
Note: This is mounted differently on the SX model kit.
The SX has a different design sub-frame that is bushed and pivots like the stock motorcycle swing arm.
The strut rod pushes on a linkage arm that activates the secondary suspension.
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The tunnel on the Mountain Horse is 4 piece structure including left and right side panels, tunnel top and bumper.
It is bolted to the snow bike sub-frame and houses the Mtn. Tamer back suspension and chain case drive system.
All 4 pieces of the tunnel are bolted together making it simple to work on.
The tunnel also provides protection for your feet and gives a place to bolt on accessories
such as gas can and cargo bags (for easy install, the top of the tunnel
is pre drilled to mount our recommended accessories).
Bolted onto the back of the tunnel is a strong 1" diameter solid
aluminum bumper handle that makes it easy to lift and handle your bike.
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The drive system on the Mountain Horse snow bike includes 2 chains.
The engine chain comes from the bike sprocket to the jack-shaft on the
snow bike kit.
The jack-shaft then transfers the drive to the outside of the tunnel; it
is built this way because the track is much wider than a tire and the
engine chain cannot fit down beside the track.
The chain in the snow bike chain case transfers the power from the
jack-shaft down to the drive axle that drives the track (this is a
similar to a chain case style drive system used on a snowmobile).
The drive system uses the highest quality parts possible that are
capable of handling triple the amount of HP and have been tested to have
the best wear resistance in wet snow conditions.
The sprockets and axles are made from hardened 4140 Chrome Molly steel.
The 2 chains are EK 520 SRO-5 O-ring and are both tension adjustable.
The axle bearings are the same size as those used in snowmobiles and are
greasable for long bearing life.
The brake system uses a disc brake on the jack-shaft and a dual piston
Wilwood brake caliper that attaches to the stock foot brake master
cylinder or can be mounted to the stock R-S hand master cylinder with
the use of a longer brake line (available on our Accessories Page).
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The front spindle on the Mountain Horse has a unique structure and
mounting method that is extremely strong.
The Spindle mounts into the stock axle bolt and includes billet aluminum
clamps that mount around the lower section of the fork tubes and to the
spindle.
This connects the spindle securely to the forks so it cannot rotate.
The spindle is constructed of tig welded 6061 T-6 Aluminum and is
designed in a way that is strong enough to handle normal use but will
bend before the forks will if you hit something hard like a rock or
stump under the snow.
In our real-world testing we have experienced no bent forks to date and
the spindle has never been damaged to the point of not being able to
ride the snow bike out of the back country.
At the bottom of the spindle it has a billet aluminum bottom that is
bolted to the spindle and attaches the ski.
This part allows the ski to pivot up in the front but not down in the
back with a rubber bumper under the ski that resists the movement; this
keeps the bike a-float on top of the snow by letting the ski angle up in
the front a limited amount.
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The ski on the Mountain Horse is called the T/S (Timbersled/Simmons)
BackCountry Ski.
It is a custom designed and built tri-keel ski that is like no other ski
in the snowmobile or snow bike industry.
It is the only ski in history that is specifically designed for snow
biking.
The ski is built by Simmons, Inc. and has been designed by Timbersled.
It has some similarities to some of the other Simmons skis but has a
totally different function that is specific to the handling needs of a
snow bike.
It is an all-in-one ski eliminating the need to change it for different
snow conditions (this is something that has been a real issue for snow
bikes until this ski was produced).
The ski is available as an upgrade on our Snow Bike Accessories page.
- 10" wide with 3 keels that allow for precision handling and best possible flotation in the powder.
- The center keel is wider, taller and shorter in length than the 2 outer keels with a 6" long skag that allows for easy steering on the trail and a roll center that feels a lot like a tire.
- Outside keels are only 3/4" wide and are a 1" shorter than the center keel. They are located to the very outer edge of the ski so they provide super secure feeling when side hilling and cornering.
- 3-1/2" of space in-between keels. This allows enough space to prevent freezing or plugging up with snow.
- With the combination of the center keel being taller than the outers, when you lean or side hill you are always on 2 keels. This allows the ski to track very straight without darting and provides very easy steering in most conditions.
- Front outer edge of the ski has a 1/4" tall ledge leading from the front of the outer keels to the ski-loop. This makes the ski respond instantly in soft snow when you steer into a side hill with out slipping out to the side.
- Front leading edge of the 2 outer keels are farther forward of the leading edge of the center keel. This adds steering responsiveness and eliminates front end push in soft snow.
- Straight cut grooves in the bottom of the ski that extend full
length and are 1/2" apart. This helps with straight line tracking on set
up snow conditions
- such as on the trail and in wet snow.
- 3 mounting positions for the ski saddle. This allows you to position the ski forward or backward to change the steering characteristics.
- All 3 ski skags are inserted with carbide down the full length of each skag so they will last a long time. The back half of the skags have 60 deg carbides that stick out for stability on ice and make the ski track straighter.
For 2014 Timbersled has made several big changes to the Mountain
Horse snow bike system.
We have put most of our focus on improving the trail ride handling to
provide a much more comfortable feeling while riding to and from the
backcountry.
We are very confident that you will be very impressed with these
improvements to the production kits with the ability to update your
existing kit.
Since we introduced the Mountain Horse in the 2010/2011 season,
Timbersled has constantly listened to our customers and performed many
hours (and miles) of testing in order to improve our products.
Below you will find every major change we have made along the way to
the Mountain Horse with information and links telling you how you can
upgrade your kit throughout the different model years.
We will continue to do everything we can to produce the absolute best
snow bike conversion kit available.
We take pride in what we do with all of our manufactured and
purchased parts being made in the US and Canada.
With this method we are able to quickly make cutting edge
improvements and then implement them with quality onto each year's
product line without having slow overseas prototyping and long
manufacturing lead times.
 Brake Line |  Dual Track Center Skag |  Skag on Ski |
- Color Change: All kits now come with a satin black powder coat finish. The satin finish stays looking good longer and easily shines up with detailer spray such as Maxima SC-1 Clear Coat dirt bike silicone spray.
- Brake Line: All MH kits now
come with a 5' brake line so that you have the option to use your
factory hand brake master cylinder as your primary brake. However you
will still have the option to use the stock foot brake with the stock
brake line if you choose to.
Available on our Accessories Page - Dual Track Center Skag: This
new skag allows the 10" TS Backcountry ski to track 50% better than
before. It allows you to ride down the trail with the comfort of minimal
darting or shiftiness. This skag is also available for previous year TS
Backcountry skis.
Available on our Accessories Page - Mtn. Tamer "Flex" front arm: The new front suspension arm has a side to side articulating motion that can be adjusted from 8° all the way down to 0° of motion (locked out). As you lean the bike the arm pivots allowing the rails to "Flex" side to side to creat the leaning motion. This allows you to be able to lean more easily while the track transitions from flat to on-edge when riding down the trail, making the snow bike feel more like you're riding on tires while the back portion of the suspension leans with the bike keeping the cutting edge portion of the track to remain affective while cornering.
- Fox Shocks: There has been several internal and external changes made to the shocks but the most noticeable change is on the back shock. We have installed a heavier rate spring (200lb). It allows you to carry more tunnel cargo weight while running less spring preload to keep a supple ride. Also the front and back shocks have a simpler spring preload adjuster nut that is more user-friendly to fine tune your suspension.
- LT Snow Flap: The LT kit now
comes with a snow flap on the back of the tunnel to stop the spraying
snow that comes off the back side of the kit when climbing. This snow
flap will fit all previous model LT MH kits.
Available on our Accessories Page
Since we introduced the Mountain Horse in the 2010/2011 season, Timbersled has constantly listened to our customers and performed many hours (and miles) of testing in order to improve our products. Below you will find every major change we have made along with information and links telling you how you can upgrade your kit. We will continue to do everything we can to produce the absolute best snow bike conversion kit available.
What's New for 2013- 10" Wide T/S BackCountry Ski: This ski has been specifically designed for the snow bike by Timbersled. This ski will come standard on all kits.
- 1/4" Deeper Lug Track: This track is a newly designed Camoplast Challenger that is single ply with a 2" lug by 12.5" wide by 2.86 pitch and comes
- Slide Rails: Our new slide rails are custom designed and built for the Mountain Horse. They utilize a single I-beam design with a simpler and nicer
- Recalibrated Suspension:
The Mtn. Tamer back suspension has been re-tuned for better ski lift
and a lighter feeling on the ski. It also has more
1" lower in the seat.
- Grease-able Bearings: The new style drive axle bearing and bearing housing are designed specifically for the Mountain Horse.
- Timbersled now offers 3 Mountain Horse models. ST (Short Track), LT (Long Track), SX (Snow Cross)
Warning
The Mountain Horse snow bike has the ability to put you in harm's way. Always be aware of avalanche and mountain terrain dangers. We strongly recommend you take a course on avalanche safety, carry the proper equipment and check the reports before you head out.
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