MPI BILLET RAILS
(Fits all Yamahas - MM/MViper/RX-1/SX/SRX)
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The new MPI billet rails are lightweight, strong and look awesome. The rail is designed for use on any of the three Yamaha Rear suspension designs (MM, Mountain Viper or Mountain RX-1). The holes used for bogies and control rods are only piloted with a 1/8" hole so if you are not using wheels, you don't have the unsightly holes. The I-beam and the rear flag sections are milled out to save weight while maintaining strength. All rails use full length slides. Long slides & hiperfax are available from MPI. These rails will bolt right on to your existing skid frame. Use in conjunction with our lightweight skid for an even greater weight savings. Rails are machined from 6061 T-6 Aluminum for maximum strength. Big rails for 8” rear wheels also available.
151 & longer rails include special rear bump stops.
For extreme use add rail stiffeners. These 7075 aluminum bars sit under the rear bump stops to further stiffen the rail.
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| Billet Rails &
Big Wheel Billet Rails |
US-Dollars |
| rsr-xxx0 |
MPI Billet Rail
saves 5 lbs (PAIR) (xxx=144, 151, 156, 159, 162) |
$495 |
| rsr-xxx8 |
MPI Big Wheel Billet Rail
saves 5 lbs (xxx=144, 151, 156, 159, 162) |
$495 |
| rsr-1999 |
MPI Billet Rail
Stiffener Kit for 151 and longer |
$45 |
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Save
$100 when purchased with Lightweight Skid |
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MPI RX-1/MM/Mtn VIPER
LIGHTWEIGHT SKID
(Fits all Yamahas - MM/MViper/RX-1/SX/SRX)
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| The new MPI Lightweight Skid can save over 40 pounds. The all Chrome-Moly / Billet Skid was inspired by the RX-1, but models are available for the MM and the Mountain Viper as well. The base kit replaces all the steel
components with Chrome-Moly and incorporates MPI’s transfer kit, which enhances weight transfer. Bushings, bolts, rivets and limit straps are also included. Billet aluminum H-Arm mounts and rear drop brackets are included. The MM version also includes a billet upper shaft. See below for a detailed description of the H-Arm.
All
Chrome-Moly pieces are powder coated. All components have been endurance tested for the RX-1, MM and Viper. Benefits include reduced weight, improved ride quality and improved weight transfer.
The base skid kit saves over 30 lbs. Additional savings are available with Billet Rails & Titanium Springs. A Mountain Performance 159” RX-1 Rear Skid with Billet Rails and Ti Springs saves 42.3 pounds, weighing in at just under 40lbs.
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Click for Larger Image Optional Rails Pictured Here PRODUCTION
ARMS ARE BLACK |
| Lightweight
Cr-Moly Skid |
US-Dollars |
| krs-1100 |
RX-1 Moly Skid
Kit - Black |
$849 |
| krs-1050 |
Mtn Viper Moly Skid
Kit - Black |
$849 |
| krs-1000 |
MM Moly Skid
Kit - Black |
$849 |
| krs-1999 |
121 to Mtn
Lightweight Skid/Skid Conversion Kit (use with krs-1000) |
$75 |
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Save
$100 when purchased with Billet Rails |
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NEW ALL Cr-MOLY LIGHTWEIGHT H-ARM
KIT
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This new
arm is not just another Cr-Moly H-Arm. We used round Cr-Moly tubing
instead of box tubing like similar arms that are available. This increases
the strength by 2.5 times. Our arm weighs just 4 pounds. BUT WE DIDN'T
STOP THERE. To further increase the strength, we narrowed the foot of the
H-arm necessitating new lower H-Arm mounts to connect the arm to the
rails. So we added Billet Aluminum Mounts and replaced the steel collars
with aluminum ones. But that wasn't enough, the OEM limit strap assembly
is also quite heavy, so we redesigned it also.
The outcome is an H-Arm assembly that SAVES
6 POUNDS. The kit includes the H-arm, 2 Billet Mounts, 2 Billet
collars, 6 bushings 2 limit strap assemblies and all new nuts and bolts.
Our straps are stronger and our mounting system is much lighter
The new Cr-moly lightweight front H-Arm has the same
dimensional characteristics as the OEM factory H-arm used on the 00/04 MM, Mtn Viper and RX-1.
Weight
Savings 6 pounds.
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| Cr-Moly H-ARM |
US-Dollars |
| rsr-0305 |
Fits
Mountain RX-1 rear suspension and conversions |
$349 |
| rsm-0305 |
Fits
00-04 MM/ Mountain Viper Suspension and conversions |
$349 |
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LIGHTWEIGHT TOP REAR SHAFT
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SAVE 2.5 POUNDS!
This
top rear shaft (rear tunnel mounting point that control rods connect to)
is made of 7075 Billet aluminum which is stronger than steel. The New
Shaft only weighs 1.45 pounds (weight savings is 2.5 pounds over stock).
For
Mountain Max and Mountain Viper
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Image |
| 7075 Top Rear
Shaft |
US-Dollars |
| rsm-0451 |
Fits
all MMs (97- 03) and 03 Mtn Viper including conversions |
$52.80 |
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TRANSFER ENHANCEMENT KIT
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| The Transfer Enhancement Kit
replaces the OEM Control Rods or (Aftermarket Adjustable Control Rods).
The result is a 5 pound savings, more transfer and more fun. The kit
allows the rear suspension to compress the rear shock without compressing
the center shock. The results in the ski lift you've been looking for.
Seven adjustments allow you to dial the exact amount you ski lift you're
been looking for. The kit works well on the 141 Mountain Max, but it
excels on 151 and longer MMs and Mtn. Vipers and if you've got a RX-1
Mountain this kit is a must. Slow speed ride on the trail is actually
improved.
The kit is simple and works great. With the difference it makes, you'd
swear it costs hundreds of dollars. Includes Parallel Straps, Spacers,
Rods & all Hardware |
Click for Larger Image
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| Transfer
Enhancement Kit |
US-Dollars |
| krt-1000 |
Rear
Transfer Enhancement Kit |
$49.95 |
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LIGHTWEIGHT REAR BRACKET KIT
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The OEM rear brackets offer a gold mine of weight savings potential. The
rear brackets on a Mountain RX-1 weigh 8.2 pounds and the rear brackets on
an MM or Mtn Viper weigh 4.2 pounds.
Our billet rear brackets weigh less than 1/2 of stock. With the RX-1 kit
tipping the scale at just
3.9 pounds (a 4.3 pound savings) and the MM/MV at just 2.0 pounds (a 2.2
pound savings). Both kits include all the required mounting hardware. The
brackets are provided in an attractive bright billet finish.
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MM/ VIPER BRACKET
Click for Larger Image
RX-1 Bracket
Click for Larger Image |
| Lightweight
Rear Bracket Kits |
US-Dollars |
| rsm-1000 |
2000+ Mountain
Max |
$89 |
| rsv-1050 |
2003+ Mountain Viper |
$89 |
| rsr-1100 |
2003+ Mountain
RX-1 |
$129 |
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RAIL EXTENSION KITS
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All MPI Rail Kits are made of 6061 T-6 Aluminum. They
include all necessary hardware for mounting. Hardware kits vary based on
length. All extensions over 1" have a nub machined to fit into the
OEM adjuster slot for added strength. Every combination of extension
exists. Extensions 3.3" and longer have and extra 1/2" of
adjustability.
Must specify the following information:
Length of New Track, Year of Snowmobile,
year and length of slide rails & Driver Size
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Rail
Extensions
Specify Length
(0.6”, 1.2”, 1.7”, 2.4”, 3.3”, 3.8, 4.6, 5.3”,
6.0",
6.4", 7.2”, 7.9”, 8.6", 9.2", 9.8”, 10.5",
11.2", 11.8", 12.5")
(example
5.3” Extensions used on 141 to 151 is 5.3” = rre-0530) |
US-Dollars |
| rre-0xx0 |
Rail
Extension Kit (0.6 to 2.4 comes with shorter collars) |
$85 |
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BIG WHEEL CONVERSION KITS
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These Big Wheel Rail Extension Kits allow you to run 8” big wheels in place of the 7” OEM plastic wheels. They are compatible with Billet or Plastic Big Wheels. All extensions are made of 6061 T-6 Aluminum. They include all necessary hardware for mounting. All extensions have a nub machined to fit into the OEM adjuster slot for added strength. Every combination of extension exists. Most models have an extra 1/2" of
adjustability.
A special ZERO version is available to convert your stock sled and track to BIG WHEELS without adding any length to your rail. Use on any Yamaha with the OEM track length 121, 136, 141, 144 & 151”
Must specify the following information:
Length of New Track, Year of Snowmobile,
year and length of slide rails & Driver Size
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| Big Wheel
Conversions |
US-Dollars |
| rrb-0000 |
Big Wheel
Conversion without Track Extension |
$99.95 |
| rrb-xxx8 |
Big
Wheel Rail
Extension Kit |
$99.95 |
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BIG WHEELS - Billet &
Plastic
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8 Inch Big Wheels are available in both Plastic and Billet Aluminum. The Plastic wheels are available in 2 styles; directional (shown) and solid.
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Billet 8” wheels are available in 2 designs:
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6 holes
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A new 5 spoke design.
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3 sizes are available:
Bearings are included on 7" plastic wheels and optional on all
billets and 8" plastic wheels. Use 3 or 4 rear wheels, mix & match billet and plastic.
8” Wheels require adaptors (see above)
Wheels Sold Each - Specify Color or Style
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| Big &
Billet Wheels |
US-Dollars |
| rbw-8005-__ |
8" Billet
Big Wheel (specify Hole=ho, Spoke=sp) Sold Each |
$69.95 |
| rbw-7005-__ |
7" Billet
Big Wheel (specify Hole=ho, Spoke=sp) Sold Each |
$64.95 |
| rbw-5205-__ |
5.25" Billet
Big Wheel (specify Hole=ho, Spoke=sp) Sold Each |
$59.95 |
| rbw-0200-__ |
7" OEM
(specify Blue=bu, Silver=sl, Black=bk) Sold Each |
$22.61 |
| rbw-8500-sd |
8" Plastic Wheel (Solid=sd) |
$34.95 |
| rbw-0600 |
Bearing for Billet Wheel on Rear Axle
(requires Wheel spacer kit) |
$7.95 |
| rbw-0601 |
Bearing for Billet Wheel in any other
location |
$7.95 |
| rbw-0610 |
Snap-Ring for Billet Wheel (included
with all wheels) |
$0.95 |
| Complete Wheel
Kits |
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| rbw-8300-__ |
8" Big Wheel Kit - Stock Track (3 plastic
wheels & hardware) |
$149.95 |
| rbw-8305-__ |
8" Kit - Stock Track (2 Billet
& 1 plastic wheel & hardware) |
$224.95 |
| rbw-8335-__ |
8" Kit - Stock Track (3 Billet
wheels & hardware) |
$259.95 |
| rbw-3000 |
3 Rear Wheel
Spacer Kit |
$19.95 |
| rbw-4000 |
4
Rear Wheel Spacer Kit |
$19.95 |
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LONGTRACK SKID CONVERSION KIT
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Kits contains every thing required to convert
your short track or 97-99 long track skid to a 2000/2004 Mountain Max,
Mountain Viper or Mtn RX-1 skid. They includes 2 rails, 1 H-Arm, 2 Lower H-Arm mounts, 1 Front Lower
shock shaft, 2 limit straps, 1 front shaft, 1 7075 top rear shaft, 1 Transfer Enhancement Kit, 1 Lower Rear
Scissors, and a front bump stop kit. It even includes rivets,
washers, bolts and nuts. Kit Contents vary based on model, all kits
include the transfer enhancement kit. INCLUDES LIGHTWEIGHT REAR SHAFT (a
$50 value)
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for Larger Image
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| Longtrack Skid Kit |
US-Dollars |
| krs-1410 |
Turns any 97 and newer
Skid into 2000+ MM Skid |
no available |
| krs-1440 |
Turns any 97 and newer
Skid into 144" 2003+ Mtn Viper / MM Skid |
$775 |
| krs-1510 |
Any 97 & newer
Skid into 151" MM/Mtn Viper/ Mtn RX-1 Skid |
$800 |
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Above
Kits 144 & 151 Kits Include our Billet Rails at no additional cost
156, 159, 162 and Big Wheel Versions also Available |
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Above Kits with
Lightweight Skid Components |
add $500 |
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00/04 MM SKID MOUNTING KIT
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Includes
Front, Center & Rear Brackets, Bolts, Washers & Spacers required to install a
new style long track skid
in an older MM or a short track. Suspension Template (40” Long
Relocation Template). All kits now include Billet Rear
Brackets that save 2.2 additional pounds.
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for Larger Image |
| 2002 Skid
Mounting Kit |
US-Dollars |
| kcx-2500 |
Mount
the new 2000 to 2005 style MM skid in your 97/99MM |
$150 |
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OEM LONGTRACK RAILS
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These are the rails used on the 00/04 Mountain Max,, 03/04 Mtn. Viper and 03/04 Mtn RX-1. They are sold individually and include the rear adjuster. Rails can’t be directly interchanged on different models without additional modifications to tunnel mounting positions.
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141" Rail Pictured
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| RAILS |
US-Dollars |
| rsm-0000 |
Fits 2000+ MM Suspension and conversions - EACH |
$172.02 |
| rsv-0000 |
Fits 2003+ Mtn Viper Suspension
& conversions LEFT |
$228.27 |
| rsv-0001 |
Fits 2003+ Mtn Viper Suspension
& conversions RIGHT |
$228.27 |
| rsr-0000 |
Fits 2003+ Mtn RX-1 Suspension & conversions
EACH |
$232.21 |
| rsa-2000
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2000+
Rail Bump Kit - front or back all rails |
$33.00 |
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HIPERFAX
& OEM SLIDES
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HIPERFAX ARE A MUST FOR ELIMINATING BOGIE WHEELS.
This remarkable patented slide reduces heat, friction & improves fuel economy. Stock slides melt at 300ºF, HiperFax™ melts at 750ºF. HiperFax was inspired by new long-travel suspensions that result in high wear and heat to slide rails. Hiperfax’s special material lasts longer and has less drag than anything we've tried.
Like all slides, hiperfax require break-in. 10 Hot and Cold cycles within the 1st 50 miles. DO NOT LET THEM GET STICKY HOT IN THE 1st 50 miles.
All OEM Slides & Hiperfax are made in the USA.
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| HIPERFAX &
OEM Slides (Black=bk, Blue=bu &
Silver=sl) |
US-Dollars |
| rhf-1400-__ |
136" to
162" Yamaha Hiperfax (specify color) (Pair) |
$169.95 |
| rhf-1050-bk |
Black 121" Yamaha Hiperfax
(Pair) |
$169.95 |
| rhf-0500-__ |
121 to 162 OEM
Slides (each) Specify Color |
$19.95 |
| rhf-0200-bk |
121 to 141 OEM
Slides (each) BLACK |
$12.95 |
| rhf-0100-bk |
121
to 136 OEM Slides (each) BLACK |
$13.34 |
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ICE SCRATCHERS
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NEW &
IMPROVED - Now 100% Stainless Steel Scratchers
RUN COOLER
& SAVE YOUR HIFAXES!!!
This simple device easily bolts to your slide rails and scratches plenty of snow to keep your sliders lubricated and your sled running cool. Testing has shown a 10 degree drop in water temperature within 1 minutes of dropping the ice scratchers. When not in use, they easily flip up and lock on the parking tabs (included) for easy storage. Kit includes all necessary mounting hardware! |
Also see picture above with
Scratchers & Wheels 
Click
for Larger Image
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| Scratchers |
US-Dollars |
| ris-0100 |
Stainless Ice Scratcher Kit (pair) |
$44.95 |
| ris-0110 |
Scratcher
Repair Kit (2 scratchers, no hardware) |
$25.95 |
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BUSHING KIT FOR
ALL YAMAHA REAR SUSPENSIONS
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Replace all 30 of your rear skid frame bushings with new OEM bushings. The kit includes all 30 bushings at a significant discount. The kit saves money and the pain of specifying each individual bushing one by one. Most sleds require all bushings between 1500 and 3000 miles, but many require them much sooner depending on riding habits and lubrication intervals.
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| Bushing Kit |
US-Dollars |
| rbk-0100 |
Fits
all liquid Yamaha Skid Frames (long and short) |
$95 |
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SHOCKS & SPRINGS -
on their own page
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