【SIP PERFORMANCE】Clutch SIP COSA 2 Race Ultrastrong 23 teeth for primary 65 teeth for SIP BFA

Φ 116，6 mm
23 teeth
helical cut teeth
for primary 65 teeth
4 SIP CR80 clutch friction plates
cork
10 spring(s)
stiffness：L，reinforced
with toothing
basket and inner part cnc machined，for 10 springs
TUNING RACE - for professionals and Grade AA - first-class repair

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The perfect connection between the crankshaft and the clutch，for all Vespa largeframe models.
PIAGGIO designed these engines with a cylindrical flange，a spring washer and a M12 nut holding the crankshaft and clutch together.
Generally speaking，this arrangement works quite well in a standard engine.
Nowadays though，this tested set up is not quite capable of reliable transmission of the power outputs that have become achievable.
To solve this we can now present a solution with the following advantages：
Interlocking cog-teeth connection.
Simple de/mounting.
Solid and enduring connection，for all mileages and power outputs.
We now have a range of crankshafts and complementary clutches available equipped with interlocking connections that are extremely solid and stable in operation.
This technology has already been established in our BFA 306 engine design.
These performance engines are easily capable of power outputs of up to 72PS！ When stripping such an engine following operation，the clutch could be removed by hand once the holding nut had been undone，with absolutely no wear discovered！ These achievements led us to transfer this advanced idea to more conventional engine casings，set ups and clutch concepts.
Without a woodruff key but with a M14 holding nut thread.
All SIP crankshafts and clutches equipped with this interlocking connection are compatible with each other.
With this system the components are locked together and held in position by the M14 holding nut，eliminating the need for a woodruff key.
On original engine casings，a 3.5mm thick spacer disc must be positioned between the clutch and bearing，with our SIP BFA engine casings a thinner 2.5mm spacer disc is used.
Attention：The oil pumping gear cannot be mounted.
Conclusion：A complete solution，eliminating once and for all one of the weakest links in the Vespa largeframe engines drive-train.

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適合車種： 125 (T1／125) (D)、125 (T2／125) (D)、125 CL、125 GTR、125 GT／125 Sprint、125 TS、150、150 (T4／150) (D)、150 CL、150 GL、150 GL Touring (... ( 対応モデルを見る )