Variator J.COSTA Pro

for Vespa GTS/
TS Super/
TV/
T 60 250-300ccm 4T LC
also, for PIAGGIO Quasar 250-300ccm, 4T LC
12 rollers
15g Product description
In contrast to conventional variators:This design of variator uses gliding weights, instead of rolling types, which facilitate the variomatic to open linearly, which has proved to be a very simple but effective technological development! Its linear design is the secret of the ‘turbo effect’ provided by these pulleys. Compared to original items the J.Costa units offer a shorter transmission ratio at lower revs, which leads to a quicker acceleration. Simultaneously, when the weights have reached the end of their travel (pulley fully opened), they also possess a taller ratio at higher revs, providing an increase in top speed.
Conclusion:
The unique Variomatic technology employed in the function of the EVO range has been once again improved and proves it with even more performance throughout the rev range! Do not forget a new ‘V’ belt. A performance orientated clutch and clutch bell completes the set up!
The best improvements in performance achieved while testing a Vespa GTS 300, fitted with a J. Costa performance variomatic pulley, were obtained while using 16gr. variomatic weights! Once you have these weights installed, check the transmission V-belt for fouling. Under certain conditions, depending on the belts dimensions, it can come into contact with the oil-sump reservoir during use. This can lead to the incineration of the oil-sump reservoir gasket! A solution is provided in the form of a spacer-washer (# PI434885/PI831363), which safely repositions the pulley unit.