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Clutch SIP Race Supersport 23 teeth for primary 62 teeth for Vespa 125 VNA-TS/150 VBA-Super/180-200 Rally/PX80-200/PE/Lusso/T5
Part no.: 9344023G
€369.00
VAT included Free shipping
1,7kg / Piece
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Clutch SIP Race Supersport 23 teeth for primary 62 teeth

for Vespa 125 VNA-TS/​150 VBA-Super/​180-200 Rally/​PX80-200/​PE/​Lusso/​T5

for standard flange
  • Ø 119 mm
  • 3 discs
  • 23 teeth
  • straight teeth
  • for primary 62 teeth
  • for primary gear 62
  • 4 SIP Cosa plates
  • 6 spring(s)
  • th 1x1,5mm, 2x2,0mm
  • incl. mounting tool
 
TUNING RACE - for professionals
€369.00
Review now
VAT included Free shipping
1,7kg / Piece
Part no.: 9344023G

Product description

High-tech clutch for the Vespa Largeframe models. "Supersport" version of the unbeaten BFA clutch.

 

With this clutch, the operating principle of the Vespa Largeframe clutch has been reversed. This is to connect less mass rigidly to the crankshaft and has the effect of improving operability. Together with 4 discs and 9 springs, this is an almost indestructible clutch that is perfect for any application. The whole thing fits under the original clutch cover of the PX.

  • Low mass on the crankshaft
  • 4 clutch plates
  • Version with toothed flange available

The principle of the inverted Vespa Largeframe clutch is becoming increasingly popular. Grinding-in and separation behaviour are convincing. Unfortunately, these clutches are usually expensive, which increases the hurdle for the conversion. The aim of the Supersport clutch is to make the ease of use attractive also for 20-30hp engines.

How the "Supersport" clutch came about

The small company BFA from Italy made a start and was the first to reverse the operating principle of the clutch for Vespa Largeframe models. This means that the outer basket no longer rotates with the crankshaft, but the inner basket. This principle was copied by several manufacturers, but the performance of the BFA clutch was never achieved. SIP bought the clutch from BFA in 2019 and continues to have it produced by the same manufacturers in Italy. The clutch works perfectly and can withstand power of over 70hp without any problem. As the full performance of the BFA clutch is rarely needed, we decided to develop a similar clutch with 4 discs. The aim was to transfer the perfect function and durability of the BFA clutch into a cheaper clutch that can easily transfer 50hp.

 

The result is impressive and can only be matched or surpassed in function and durability by the 5-disc BFA clutch. As with the BFA version, the pinion is bolted on with 12 screws. The 4 clutch plates are taken from the design of the Cosa clutch, SIP pads on aluminium sheets are used. This has made it possible to increase the number of plates, both on the inside and on the outside basket, which increases the service life of the lining and separating discs. 6 springs provide sufficient contact pressure, enough space for 9 springs leave potential for another upgrade. CNC-manufactured individual parts made of high-quality aluminium ensure low weight and high quality standards. The pads can be changed while the clutch is installed.

The Supersport clutch is available in different versions

Suitable for the original clutch flange of the PX crankshafts or with toothing that forms an almost indestructible connection with the crankshaft. However, this requires the use of a crankshaft with the same toothing. The toothing was first found on the crankshaft of the BFA 306 engines, but we now also offer it for a whole range of crankshafts for standard PX engine cases.

If you want to combine the SIP Supersport clutch with a large primary gear Z64 from e.g. Polini, Malossi, BFA or other manufacturers, you can buy the clutches "without gear" 93440000 and 93441000 and combine it with one of the BFA gears 87482600, 87482700, 87482800.

Supersport clutch and separate lubrication

The splined crankshaft stub cannot be combined with separate lubrication. The reason is that there is no washer clutch with splines and inner diameter for M14. The version for the original flange can be used with separate lubrication. However, the protruding M5 countersunk screws may rub against the axle of the oil pump gear in the engine casing. To remedy this, it is sufficient to grind the axle of the oil pump approx. 0.5 mm lower. Alternatively, the protrusions of the screws can be ground off.

 

Conclusion: The Supersport clutch for the Vespa Largeframe models is the absolute high-end solution for a clean, reliable and easy-to-use power connection between engine and gearbox.

Technical details at a glance:

  • CNC milled aluminium basket outside
  • 12-pinion bolted with primary pinion
  • CNC milled steel basket inside
  • 4 full pads type "Cosa"
  • 3 steel discs
  • CNC milled aluminium cover plate top and bottom
  • 9 springs
  • clutch plates can be changed in installed condition
  • can be mounted with the original PX 200 clutch cover
  •  can be operated with original pressure plate

The best setup - our SIP-TIP:

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