ROLLER CLUTCH
Proven in the Mountains!
|
| NEW
& IMPROVED -- No Machining Required Greatly improve your sled's acceleration along with lightning quick back-shifting and improved throttle response! The Roller Secondary design provides both excellent performance and durability for your YVX secondary. This design features high tech composite rollers requiring no bearing or lubrication which provides both excellent performance and durability. The lightweight aluminum helix and roller cover design allows the clutch to react very quickly to both back-shifting and throttle changes. The efficiency of the roller design allows for the use of aggressive multi-angle helixes, which greatly improve acceleration while still providing an excellent back-shift.
MPI knows the Mountains. There are two kinds of backs shifts: 1) RPM Change (you let off the throttle going into a corner) and 2) Load Change (you are going up a hill and the terrain gets steeper and power falls off due to increasing altitude). The 1st example is an active backshift which all sleds experience, the 2nd example applies only to Mountain Riding. This clutch reacts to both circumstances where the average flat lander has never considered the 2nd type of backshift.
Uses stock Yamaha Springs.
|
Click for
Larger Image |
Roller
Secondary & Helix
Specify Helix Angle (example 50/40
is psr-5040) |
US-Dollars |
| psr-0000 |
Roller Clutch Kit
without Helix |
$220 |
| psr-____ |
Roller
Helix |
$69 |
| |
|
|
| |
|
|
Multi-Angle Helixes - Fits
your stock Clutch
|
A Multi-angle Helix is one of the best ways to
improve your sled's performance. A two stroke engine has significant
torque and horsepower increase at low RPM. As RPM's increase, the torque
increase begins to lessen. By using a Multi-angle Helix, you can
compensate for the low speed torque increase, Having a high initial angle
allows the clutch to shift quickly, responding to the significant torque
increase. As the rate of torque lessens and the clutches continue to
shift, the Helix angle decreases at a constant rate, slowing the shift to
compensate for the drop in torque increase.The
first number is the initial angle; the higher the angle (or number) the
faster the shift rate. The higher the number the lower the shift RPM. The
angle changes at a constant rate to the lower angle. The lower the second
angle (or number) the higher the shift RPM.
Popular Helix Angles
38/32 |
40/34 |
42/34 |
42/36 |
44/38 |
48/38 |
44/40 |
| 46/40 |
48/40 |
50/40 |
52/40 |
46/42 |
48/42 |
52/42 |
54/42 |
50/44 |
52/44 |
54/44 |
56/44 |
51/45 |
53/47 |
|
CLICK FOR
LARGER IMAGE |
Helix
for YVX Secondary (95 thru current)
Specify Helix Angle (example 46/42
is psh-4642) |
US-Dollars |
| psh-____ |
YVX
Secondary Helix (95 thru current) |
$99.95 |
| |
|
|
| |
|
|
GEARS, CHAINS, WEIGHTS,
ROLLERS & SPRINGS
|
|
CLICK ON
THIS LINK
TO SEE GEAR, CHAIN
& SPRING CHARTS & PRICING |
Click for next page
|
GEARS, CHAINS,
WEIGHTS,
ROLLERS& SPRINGS |
US-Dollars |
| click |
Upper Gears
Starting at |
$18.05 |
| click |
Bottom Gears
Starting at |
$41.95 |
| click |
Weights, Rivets
& Rollers Starting
at |
$18.55 |
| click |
Springs
Starting at |
$18.00 |
| |
|
|
| |
|
|
STAINLESS BRAKE LINES
|
Drastically improves firmness of brake handle (removes spongy feel)
Longer line works with stockers or rolled chain cases and/or tall handle bars. Made of stainless & Teflon with a clear cover for added protection. The hose is 8" longer than Stock
99/04, 4" longer than Stock 97/98. and 4” longer than RX-1. Works on all Yamahas.
|
Click for Larger Image |
| Stainless
Brake Line |
US-Dollars |
| pbr-1201 |
Stainless
Line (fits MM/SX/SRX....all except below) |
$60.00 |
| pbr-1210 |
Stainless Line
2004 and newer Viper |
$ 60.00 |
| pbr-1251 |
Stainless
Line RX-1 Only |
$60.00 |
| |
|
|
| |
|
|
LIGHTWEIGHT BRAKE ROTOR &
HUB
|
The most effective way to reduce weight is by reducing rotating weight. Each pound of rotating weight is equal to 7lbs of stationary weight.
Our lightweight MM/Mtn Viper hub & stainless steel rotor eliminates 2.2 pounds of rotating weight (but it feels like 15). Rotors are stainless steel and hubs are 7075 aluminum.
The RX-1 Rotor & Hub saves 1 pound.
|
Click for Larger Image |
| Stainless
Brake Rotor & Hub |
PRICE |
| pbr-2020 |
Stainless Rotor |
$119.95 |
| pbr-2010 |
MM, Viper, RX,
SRX Billet
7075
Aluminum Hub |
$ 59.95 |
| pbr-2015 |
RX-1
7075 Aluminum Hub |
$
59.95 |
| |
|
|
ADJUSTABLE
BRAKE LEVER
|
| This brake lever allows you to adjust the distance from the brake lever to
the handlebars, for increased rider comfort and control. Fits all '97 and
newer models with Hydraulic brakes |
Click for Larger Image
|
| Adjustable Brake Lever |
PRICE |
| pbr-4000 |
97
and newer Yamaha with Hydraulic Brakes |
$26.73 |
| |
|
|
| |
|
|
WEIGHTLESS PARKING BRAKE
|
| Eliminate over 1 pound of useless weight. Our new Parking Brake mounts
under the OEM Brake assembly. It provides a small spring loaded Wedge that
rides in a track. This wedge holds the OEM hydraulic brake on (like all
other manufactures). With one hand squeeze the handle and the unit
automatically releases. |
Click for Larger Image |
| Weightless
Parking Brake |
PRICE |
| pbp-0100 |
97
and newer with Hydraulic Brakes |
$119.95 |
| |
|
|
| |
|
|
BILLET BRAKE COVER
|
Our new billet master cylinder cover is made of 7075 billet
aluminum with a bright finish. It adds that extra touch of class to any 97 and newer Yamaha. |
Click for Larger Image
|
| Brake Master
Cylinder Cover |
PRICE |
| pbr-4500 |
97
and newer with Hydraulic Brakes |
$19.95 |
| |
|
|
| |
|
|
DOUBLE
ROW ANTI-RATCHET
DRIVERS
8T, 9T or 10T AND 7T and 8T 3" Pitch
|
| These are the latest in anti-ratchet driver design. They feature extra banded hubs and 2 rows of involute drive nubs (stock style) in addition to the anti-ratchet cog style nubs. The extra wide banded hub makes them less prone to spin on the axle. This will allow you to run your track much looser than stock, which means more power. These drive the track windows and the stock inside nubs. Used in pairs, they eliminate all the stock drivers. Two drivers per sled required. Sold each.
New
3" pitch also available in the exact same design. For use on new
3" pitch Camoplast 2.5" Tracks and New 153&162" Cat
Tracks.
A
3" Pitch 7 Tooth Driver is the same diameter and a standard 8T
A 3" Pitch 8 Tooth is half way between a standard 9T and 10T
|
Click for Larger Image
|
| Anti-Ratchet
Drivers - 2 pieces required per sled |
PRICE |
| pdd-0810 |
8 Tooth -- Sold
each (2 required) |
$ 76.95 |
| pdd-0910 |
9 Tooth -- Sold
each (2 required) |
$ 81.95 |
| pdd-1010 |
10 Tooth -- Sold
each (2 required) |
$ 91.95 |
| pdd-3710 |
7 Tooth 3"
Pitch -- Sold
each (2 required) |
$ 81.95 |
| pdd-3810 |
8
Tooth 3" Pitch -- Sold each (2 required) |
$
91.95 |
| |
|
|
| |
|
|
STANDARD OEM
STYLE DRIVERS
8T, 9T or 10T - Also 3" Pitch Drivers
|
| OEM
Style Drivers can be used as single replacements for worn stock drivers or
purchased 4 at a time for stock replacement or a driver size change.
Purchase 2 inner drivers and 2 outer drivers to make a complete set. |
Click for Larger Image
|
| OEM Style Drivers - 4 required per sled |
PRICE |
| pds-0810 |
8 Tooth -
1-1/16" Single
Row (outer) - Sold Each |
$17.50 |
| pds-0811 |
8 Tooth -
1-1/16" Double
Row (inner) - Sold Each |
$17.50 |
| pds-0910 |
9 Tooth -
1-1/16" Single
Row (outer) - Sold Each |
$20.00 |
| pds-0911 |
9 Tooth -
1-1/16" Double
Row (inner) - Sold Each |
$20.00 |
| pds-1010 |
10 Tooth -
1-1/16" Single
Row (outer) - Sold Each |
$30.00 |
| pds-1011 |
10 Tooth -
1-1/16" Double
Row (outer) - Sold Each |
$30.00 |
| pdg-0825 |
8T drivers for
3" Pitch 1-1/4"
Axle Single Row |
$29.95 |
| pdg-0826 |
8T
drivers for 3" Pitch 1-1/4"
Axle Double Row |
$29.95 |
| |
|
|
| |
|
|
DRIVE
AXLES
- Steel or Titanium
Eliminate OEM Axle Breakage
|
| If you have a 97-00 Yamaha
Sled, there is a good chance your axle will break. 2001 and later models
already have the updated OEM axle. If your axle has been replaced, you can
identify the new style axle by the small notch cut in the end of the axle.
The old axle just has a chamfered edge (45 degree angle).
MPI’s Titanium Axle is slightly oversized at 1.100 vs stock at 1.063 weighing just 3.2lbs (Stock 5.4lbs).
Titanium Jackshafts saved less than 1 pound and have therefore been
discontinued.
|
Click for Larger Image
|
| Yamaha Axles
& Jackshafts |
PRICE |
| paa-0101 |
New Style OEM
Axle for all except RX-1 & Viper |
$97.68 |
| paa-0260 |
Titanium
Axle for 03+ RX-1 |
$399 |
| |
|
|
| |
|
|
| |
|
|
