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Stage6 CVT Oversize R/T Kit (Aprilia, Piaggio, Vespa 50)

Stage6 CVT Oversize R/T Kit (Aprilia, Piaggio, Vespa 50)

Description: Stage6 CVT Oversize R/T Kit for Aprilia, Piaggio 50, Vespa 2-stroke engines. The Stage6 R/T Oversize the CVT system. Enlarged CVT systems that extend the complete transmission range have become essential for race and midrace engines. The Stage6 R/T variator offers revised roller curves (optimized for R/T engines) for 19x15.5mm weights, which results in more consistent RPMs throughout the acceleration phase. The precise surface angles have been achieved using CNC technology and the center area of the ramp plate has been reinforced. The sintered guide piece offers optimal lubrication. Different from conventional torque drivers that are manufactured from steel, this Oversize version consists of forged aluminum halves that are screwed to a guide piece. The halves have been CNC-machined, which guarantees high precision of the entire component and especially of the surface angle. Special attention has been paid to ensuring an ideal surface roughness, as this has a major influence on shifting characteristics. Advantages of the modular construction include the reduced heat built-up, a noticeably lower weight, and the possibility to replace individual worn components. Included in the delivery are the complete Stage6 R/T Oversize variator, the Stage6 R/T Torque Boost torque driver kit, and the Stage6 R/T Oversize drive belt.

Installation: Make sure variator drive face is seated properly and not get its teeth chewed by the Bendix: 1. Slack the belt by opening the CVT clutch gives belt slack to the variator side. 2. Then install the variator drive face while lifting the slack belt further away from the center boss if done properly should not see any splines between variator drive face slop-side and boss flat-side. Should be flushed together. 3. Then install the existing variator fan, washer, and hand-tight nut. 4. Finally, apply blue Loctitetorque nut to 30-35ft-lbs. For reassurance please consult your manufacturer's variator torque specs.


Includes the following Variator, Variator boss, Variator drive face, Belt, and Belt pulley.

1.    Include Stage6 Drive Face, Drive Face.
•    1x Aluminum CNC Machined Drive Face
•    Splines:  / ID: mm / OD: mm
2.    Includes Stage6 Variator, Roller weights, Variator boss, Variator housing, Variator slides, and Variator top.
•    1x Alumin-Alloy Housing ID: mm / OD: mm / H: mm
•    1x Stainless Steel Boss L: mm / ID: mm / OD: mm
•    1x Metal Top ID: mm / OD: mm / H: mm
•    6x Black Roller Weights: 19x15.5mm 3.5g
•    3x Plastic Slides (Black)
3.    Includes Stage6 Secondary Slider, slider (torque driver), and O-rings.
•    1x Secondary Slider Plate OD: mm / Funnel ID: mm / OD: / H: mm
•    2x Rubber O-rings
4.    Include Stage6 CVT Drive Belt,
•    CVT Drive Belt: 803-18.9-30
•    Made in Italy
5.    Include Stage6 Compression Spring
•    Compression Spring
•    Made in Italy
•    Fit Aprilia 49/50cc
•    Fit Piaggio 49/50cc
•    Fit Vespa 49/50cc

Supported Models: Aprilia Mojito, Aprilia Scarabeo 4T, Aprilia Sport City One, Aprilia Sr R Factory, Aprilia Sr Street, Piaggio Fly, Piaggio Typhoon, Piaggio Vespa, Various unlisted makes/models

Item Weight & Package Dimensions:
•    6.96 pounds | 19.75" (L) x 18.25" (W) x 4.75" (H)

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Stage6 CVT Oversize R/T Kit (Aprilia, Piaggio, Vespa 50)
  • Stock: 40
  • Reward Points: 14
  • Part #: S6-5614003
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Price in reward points: 352