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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!





This Super Trans Kit 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!

 Zuma 125cc


"Maxi Speed Control" is the
Polini variator with specific characteristics
for the Yamaha 125 scooter.

The sporting character of the new Polini "Maxi Speed" is the synthesis of an advanced project designed and developed
to guarantee satisfaction in owners of Yamaha 125 scooters. It is really a jewel of modern technology able to express many driving characteristics on all kind of roads.
"Maxi Speed control" ensures a concrete increase in acceleration, improves overall performance, and gives important acceleration in starts, in overtaking and


It optimises engine performance at
every rpm and distinguishes itself for the innovative lubricating system. The sliding of the variator improves functionality and insures
longer life. The external surface ensures maximum friction to the transmission's belt so that traction is always constant. The semipulley is die-cast in aluminium and of a high silicon concentration. The bigger amplitude of the roller allows better acceleration when starting and higher maximum speed thanks to the better power
output. The transmission's belt adherence is bigger because the external surface has not been treated. The casehardened and tempered steel pin is chromed, its external surface is ground and lapped; any friction with the speed
control is therefore minimized. The rollers are made of a thermoplastic resin, which guarantees long use with minimal wear.
Rollers are available in a series of
various weights (starting from the original) for a better personalisation of the variator.
These rollers have different colours to distinguish the weights even after long use.


NCY Variator Fan

better cooling




 Roller Kits

Light to Heavy

High quality

Long lasting
NOT made in China!

Many Sizes - Many Weights

We have rollers for the stock Yamaha, Polini, and NCY variators

Page 1 Exhaust Systems
Page 2 Belts - Springs - Rollers
Page 3  Electronic Jet Kit- Air Filters- Breathers
Page 4 Variator
Page 5 Clutch - Final Drive
Page 6 Big Bore Kit-Oil Cooler
Page 7 Brakes
Page 8 Tires & Wheels
Page 9  Front Suspension
Page 10 Rear Suspension
Page 11  Dual Head Light Kit - Battery - BatteryTender
Page 12 Corbin SEAT- Service Manual - Lock - Safety Vest
Page 13 Rear Rack - Travel Trunk - Saddlebags, License Frame, Red Light Changer, Scooter Kilt, Cover, Winshield
Page 14  
Page 15  Bling for the 125!
Page 16  Tech Tips 
Page 17  Engine Work


Zumasrus Home


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