Vespa Clutch Unit 22 Tooth Cosa With SIPR Basket
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Vespa - Clutch Complete - 22 Tooth - PX, T5 Upgear, Cosa 125cc
Performance Checked and Reworked by Beedspeed.
With SIP Reinforced (Outer Ring) Sports Clutch Basket Fitted
compressed and hardened basket,
16 times riveted+reinforced, and Reinforment Ring Ring
Can be used with standard 8 spring setup or 16 spring if preffered
"On tuned engines, due to the high number of revs, the clutch baskets frequently flip open. Long distance trips can also belabour and overload the basket as we ourselves have often had to experience on our SIP trips. To counter this we offer sport clutch baskets with an outer ring. As a result of this the basket is no longer able to bend open and the retaining ring stays in its groove.
The PIAGGIO clutch basket is the basis of the EM Sport basket. One of the rings from one piece is welded to the basket which prevents the crank webs from flipping open. We recommend adjusting the clutch friction plates slightly to prevent the plates from getting caught. Simply grind them a little using a file.
The SIP Sport COSA 2 clutch basket is being exclusively produced for SIP. New moulds have been designed for the external and internal basket. The basket is made out of high quality materials, the flanks are induction-hardened, surface-optimised and configured for a high precision fit. The retaining ring groove has been optimised and the internal part has been fitted with 16 spring supports and pressed in specially made rivets. The ring also consists of one unit and provides enough space for the clutch friction plates.
Conclusion: This is the best value type of strengthened clutch basket and a must for everyone with over 12 hp on their scooter. "