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  • Clutch -SC, Largeframe, type Cosa2/FL- for primary gear 64/65 tooth – Vespa PX200, Rally200 – 23 tooth

Clutch -SC, Largeframe, type Cosa2/FL- for primary gear 64/65 tooth – Vespa PX200, Rally200 – 23 tooth

Description

teeth clutch sprocket: 23 height of clutch sprocket: 9.5 mm number of springs: 8 SC COUPLING – The little brother... read more
Parts:
clutch
SKU:
SC6423
Categories:
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Brand:
Scooter Center
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Price

€131,40 Incl. VAT

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Total

€131,40 Incl. VAT

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Description

teeth clutch sprocket: 23
height of clutch sprocket: 9.5 mm
number of springs: 8

SC COUPLING – The little brother of the BGM Superstrong coupling for Vespa PX. High quality BGM PRO components in standard coupling basket. Combines all the advantages of the Cosa2 clutch type at an unrivalled low price:

  • Very easy to pull
  • Separates very cleanly
  • Quick and precise gear changes

Another special feature is the SC clutch with special sprockets to shorten/extend the original transmission ratio.

FITTING
The SC clutch replaces any conventional clutch type as used in the Vespa large frame models with inlet rotary vane control from approx. 1956 and later.
Thus usable in Vespa VNA, VNB, VBA, VBB, T4, GL, Super, Sprint, Sprint Veloce, GT, GTR, TS, Rally, PX, Cosa and T5.

Without modifications in all vehicles from 1995 on as well as engines from 180ccm (ex works), Vespa T5 and all Cosa models suitable.

MODIFICATIONS
Cars with less than 180ccm (ex works) need the clutch cover of the 200ccm models, if the original existing clutch cover shall not be modified. Vehicles built before 1995 must be minimally modified to fit the Superstrong clutch (see documents under “Downloads”).

FIELD OF USE
Ideal for original and lightly tuned engines. For applications above 15hp we recommend the BGM Superstrong coupling.

EQUIPMENT
The SC coupling is equipped with: BGM PRO retaining ring (reinforced), BGM PRO clutch springs reinforced (8 pcs. XL), BGM PRO clutch pinion, BGM PRO clutch facings, BGM PRO steel discs, BGM PRO clutch bushing

PRODUCTION
The SC clutch types are all manufactured and tested manually in our factory for maximum quality control. Piaggio has 65, 67 and 68 teeth primary wheels already combined ex works with different clutch pinions.
This makes it easy to adapt the overall transmission ratio to the engine power.
A difference is made here between 67/68 and 65 teeth.
Due to the different so-called gear module, the following wheel/pinion combinations can be used.
Please note: BGM is the only manufacturer to offer different 22Z pinions for 67/68Z and 65Z primary gears. This is the only way to ensure maximum stability.

primary wheel primary wheel original installed in >/p> Usable SC couplings
62Z* x 23Z*, 24Z*, 25Z* (straight toothed)
63Z* x 23Z*, 24Z*, 25Z* (straight toothed)
65Z Rally200, PX200 22Z*, 23Z, 24Z*
67Z All 125-180cc models up to year of manufacture. 1977 20Z , 21Z , 22Z, 23Z*
68Z All 80-150cc models from year of manufacture 1978, all Cosa >/p> 20Z , 21Z , 22Z, 23Z*

*BGM sprockets with special module!

EXAMPLES

Longer gear ratio:

  • PX80/PX125 Drivers use a clutch with 22 or 23 teeth (suitable for primary wheel 67/68)
  • PX200/Rally200 Drivers use a clutch with 24 teeth (suitable for primary wheel 64/65) to increase the gear ratio

Shorter gear ratio:

  • PX200/Rally200 drivers use a clutch with 22 teeth (suitable for primary wheel 64/65) to shorten the gear ratio.

TOOTHINGS
Clutches with straight-toothed pinions can only be combined with the corresponding straight-toothed primary wheel. To do this, the motor must be fully opened. The extra long primary reduction ratios based on the 62/63 tooth primary wheel are only available with straight teeth. The high torque of motors requiring such a long reduction is transmitted directly into the gearbox via straight toothing without exerting lateral forces on the auxiliary shaft bearings. Due to the precise manufacturing process, the straight-toothed drives are nevertheless just as quiet as the helical-toothed drives.

TIPP
For the greatest possible transmission ratio range, simply install the special BGM 64 tooth primary gear (motor must be completely opened for this). Then, by simply changing the clutch pinion, the engine can be reduced in size to suit a tame 177cc cylinder up to a torque steamer.

EXTRA LANG
Engines with a lot of torque and early power peak choose the straight-toothed clutches that also require a straight-toothed primary wheel (also available as a set). This allows very long gear reductions to be achieved. Ideal even if the overall gear ratio is too short for very sporty engines with a modified auxiliary shaft and shorter gear steps. Also an option if the actual gearbox is very short (PX80) or the transmission ratio is too low due to a small wheel diameter (PX200 engine with 8 inch tyres in Oldie).

COMPLISION OF DELIVERY
The scope of delivery includes the complete ready-to-install clutch with bgm PRO Cosa clutch linings and eight BGM PRO XL springs. A new O-ring for the clutch cover, the half moon wedge and a new clutch nut are also included. We use a nut with clamping part (MBN13023, T2, strength class 10, DBL9440.40) as we have had the best experience with this nut in racing with over 40PS shaft power. Tightening torque 70-75NM. We do not recommend other locking devices such as Nordlock, corrugated spring washers (DIN 137) or serrated lock washers (DIN 6798).

We recommend BGM Pro Street gear oil (BGM2025, corresponds to specification API GL-3) as lubricant.

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