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You are here:Home > Derbi > Aprillia > Sport City (C377M) 4T
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Winged Clutch Bell
Winged Clutch Bell
Our Price: $59.90 $59.90

TC UNIT CONTROLLERQ75
TC UNIT CONTROLLERQ75
Our Price: $75.90 $75.90

c CONTROLLER
Fly Clutch (non adjustable) Automatic Clutch
Fly Clutch (non adjustable) Automatic Clutch
Our Price: $79.95 $79.95

Fully Automatic non adjustable clutch
Variator for 4 Stroke Scooters
Variator for 4 Stroke Scooters
Our Price: $79.99 $79.99

When the technology makes the difference.
Multivar : the sport transmission with the racing acceleration that can't be beat!
A jewel to mount on your scooter. Too bad it can't be displayed, it is so perfect!
Designed by engineers with great experience, produced entirely in the Malossi factory, utilizing robots with the highest precision.
Delta Clutch Adjustable
Delta Clutch Adjustable
Our Price: $109.95 $109.95

Delta Clutch was born in the racing scene as an irreplaceable tool. On track it has allowed the Malossi team mechanics to adjust automatic clutches of the scooters rapidly and accurately, depending on the type of track and the type of engine tuning.
The perfect operation of this automatic device is fundamental to obtain a good start from standstill, and to exit from tight bends where the speed of the vehicle decreases. The advantages offered by these clutches when compared with the standard ones are huge, even for a road vehicle, because they allow sophisticated tune-ups for a very wide range of engine revs.
Delta Clutch is marketed with a sport tune-up, coupled with a range of optional accessories that allow for a race setting at the highest levels.
Delta Clutch is adaptable for both competition and city and sporting use: these clutch assemblies were designed by Malossi, who is directly is in control of their production,materials choice.
After fitting, each clutch assembly is balanced on a special computermanaged machine, within values around 3/10 of a gram.
Delta Clutch is supplied assembled and set for road and sporting use, with three white small springs with a 1,6 mm-diameter wire.
Two springs sets, one for road use, art. 29 8746 , and one for racing use, art. 29 8747 are available on request, which allow to increase enormously the Delta Clutch setting range.
We all know that clutch behaviour only affects acceleration, and not speed, the- refore there are no certification problems for these devices.
This is even more stimulating in creating other novelties to satisfy our customers.
Torque Driver
Torque Driver
Our Price: $125.00 $125.00

This component called Torque Driver for its specific function of determining the exact shifting moment, was calculated to give the vehicle the maximum possible acceleration in connection with the specific power of any single engine. The spiral's peculiar shape was studied to fix the RPMs on the point of maximum power.
It was expressly created to complete the development of boosted motors withour cylinders, variators and the special Malossi Kevlar Belts, allowing to fully exploit your vehicle's notable torque and power.
The new Malossi mobile driven split pulley ensures, on boosted vehicles,extraordinary acceleration and an extremely progressive and fluid torque output to the wheel. The tracks on the Malossi mobile driven split pulley were studied and designed on CAD-CAM systems and machined on CNC machinetools in order to guarantee total interchangeability with the original component and extremely high machining accuracy.
This new Malossi product is a concentrate of today's state-of-the-art technology.
NLA use 3113905
NLA use 3113905
Our Price: $319.00 $319.00

This kit will breath some life into the 50cc kit for four stokers.  Coupled with the cam 59 11988 it will be a great performance enhance.

TECHNICAL FEATURES

Cylinder
- Material: primary aluminium alloy with a high content of hardened and tempered silicon, cylinder liner with silicon carbide coating in a galvanic nickel die and crossed smoothing with two diamond passages with very limited tolerances.
- Machining: on machine tools with high precision numerical control.
- Cylinder-piston connection with an allowance of 0.05 mm.
- Recalculated and upgraded heat exchange surfaces.

Piston
- Ultra compact with 3 rings.
- Material: special aluminium alloy with high silicon content, low thermal expansion and a tin facing on the sliding surfaces.
- Machining on machine tools with numerical control.
- Lightened and reinforced.
- Upgraded heat exchange surfaces.

Piston rings
- Special rings with high sliding ease and very high mechanical resistance.
- I° ring compression in nitrided and chromium steel.
- II° special cast iron ring.
- Three - piece scraper ring made of chromium-plated special steel