ZumasRus

   831-484-1921

M-F 9AM - 5PM PDT

Give us a call. We have real live people that answer the phone! They know what they are doing and are happy to talk to you and and answer your questions!

  

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The Super Transmission Kit from NCY is one of the best dollar-for-dollar bolt-ons to improve your bike! Quicker accelleration, higher top speeds, and makes your CVT the smoothest operating trans around! From rapid down shifting to slow cruising, this thing is smooooth. Ultralight balanced components, oversized wear pads, and state of the art Teflon coatings ensure superior performance and long service life.

 

 

 

Kit includes:
Ultralight gold teflon coated overdrive variator
Ultralight outer drive face
Ultralight large shoe racing clutch
Ulltraight drilled & vented clutch bell
Dual range secondary slider
Roller weights
Compression spring
Ball bearing compression spring seat

Recommendations:

-Use a new belt with this kit
-Use graphite or Moly grease when assembling

 

 

Shipped with assembly instructions with pictures!

This is the best bang for your buck for a transmission for your scoot! Killer price for all this. Give us a call!

Athena High Performance Variator
This variator uses larger roller weights (16x13) which improve the 50cc performance and can handle the power of the 70cc setups, and it includes torque spring!

Comes complete:

  • rollers
  • sliders
  • torque spring
  • cam plate
  • sleeve

We suggest getting a set of lighter rollers so you can try out different set ups


 

Fits:

  • Stock Yamaha Variator
  • Athena Variator
  • NCY Variator
  • Polini Variator
  • Malossi Variator

O E M Claw Washer-This is the washer that sits in the fan and has splines

 


O E M Variator One way Clutch

Belts! Belts! Belts!

  • Yamaha
  • Erlandson-Kevlar Made in USA
  • Athena

Different belts, different prices, different performance.

As your drive belt wears down, it gets thinner and thinner. This will start to decrease your top speed. So, if your scooter is getting slower and slower, but you don't know why, replace that belt! Quite likely, that is the cause!

Roller Kits

  • Light to Heavy
  • High Quality-Not made in China
  • Long Lasting
  • Many sizes
  • Many weights

 

 

 

Don't Forget Sliders!

Roller Weight Tuning Kit (15 x 12mm 2G to 13G

16 x 13mm 3g to 14g)


This is probably the best way to go about tuning your CVT transmission!

Included in this tuning kit are 12 sets of 3 rollers, for a total of 36 roller weights. These sets range from 2g to 14g. Combining 2 sets of rollers allows you to tune with a large variance of weights sets!

For example:
3x 10g & 3x 11g rollers (alternating weights in variator) gives you 10.5g roller set.

DANGER: weights must be put in a 120 deg pattern! If not, SEVERE ENGINE DAMAGE WILL RESULT!!! In other words, alternate the rollers!

TIPS: Lighter roller weights will increase RPM for any given road speed.
Heavier weights will lower RPM for any given road speed.

All of this, of course, must be tailored to each person's engine set-up & personal driving style!!

Happy scootering!!!

 

NCY Compression Spring (1000RPM)


Compression springs do a couple of things:

1. Supply force to engage the belt.

2. Determine change rate of CVT.

(The transmission. changes from low to high gear. A 1000rpm spring will go into a higher gear sooner than a 2000rpm spring.)

 

 

 

NCY Compression Spring (1500RPM)


Compression springs do a couple of things:

1. Supply force to engage the belt.

2. Determine change rate of CVT.

(The transmission. changes from low to high gear. A 1000rpm spring will go into a higher gear sooner than a 2000rpm spring.)

 

NCY Compression Spring (2000RPM)


Compression springs do a couple of things:

1. Supply force to engage the belt.

2. Determine change rate of CVT.

(The transmission. changes from low to high gear. A 1000rpm spring will go into a higher gear sooner than a 2000rpm spring.)

 

 

NCY 3 shoe Clutch 107MM

Lightened clutch from NCY. With extra lightweight pillows and high friction pads, this is a great upgrade for a stock or performance machine.

The light weight pillows allow for quicker spool and higher revvs.

NCY Clutch Bell 107mm

Clutch housings are often overlooked when looking for extra power. Light weight housings allow for quicker acceleration and more efficient cooling. This housing is a perfect upgrade for any bike, stock or modified!

*Textured for better initial bite
*Cross drilled for heat dispersion and debris extraction.
*Ultra efficient cooling properties.

Through constant research NCY continues to bring design concepts to the CVT transmission that are unmatched by any others.

 831-484-1921

m-f 9-5 pacific

Noon-8pm Eastern

Give us a call....we have real people answering the phone who are knowledgeable, friendly, and happy to help you out with your technical problem or your order questions.

We ship world wide daily!

 E-Mail

 

Page 1 Exhaust Systems 
Page 2  Belts, Springs, Hotwire, Reeds,Rollers, Tuning Kits, Spark Plugs
Page 3  Big Bore Cylinder Kits, Crank Shafts, Main Bearings,Copper Head Gasket 
Page 4  Variators, Transmission Kits, Clutch, Belts, Rollers, Tuning Kits 
Page 5 Final Drive
Page 6 Carburators, Jet Kit, Air Cleaners,Throttle Cable, Reeds
Page 7 Brakes, Steel Braided Brake Line, Mstr Cyl Cover, Brake Knob 
Page 8 Tires, Tire Repair Kit - Service & Parts Manual
Page 9 Front Suspension, Steering Bear, Wheel Bear Kit, Fork Boots
Page 10 Rear Suspension 
Page 11 Dual Head Light Mod - Battery - Chargers- Starter Motor-Starter Relay
Page 12 Corbin Seat- Service Manual - Lock/Alarm, Safety Vest 
Page 13 Saddle Bags, Trunks, Cooler, License Frame, Red Light Changer,Cover
Page 14  2008-2011 Zuma Fix it Kit 
Page 15 Race Replica Body Kit 
Page 16 Tech Tips 
Page 17 Engine Work 

  

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  All products are Legal Only for Racing Vehicles
and are not intended for use on pollution controlled street vehicles