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Clutch -SC, Largeframe, type Cosa2/FL- for primary gear 67/68 tooth - Vespa PX80, PX125, PX150, T5 125cc, Cosa, Sprint150, Rally180, GT125/GTR125, TS125, GL150, Super125 (VNC1 , 11001-), Super150 - 22 tooth
Part no.:
SC6822
Description
SC CLUTCH - The little brother of the BGM Superstrong clutch for Vespa PX. High quality BGM PRO components in the standard clutch basket. Combines all the advantages of the Cosa2 clutch type at an unrivalled price:
- Very easy to pull
- Separates very clean
- Fast and precise gear changes
As a further special feature the SC clutch is available with special pinions to shorten/extend the original gear ratio.
FIT
The SC clutch replaces any conventional clutch type as used in the Vespa large frame models with rotary intake valve control from about 1956 onwards.
Thus usable in Vespa VNA, VNB, VBA, VBB, T4, GL, Super, Sprint, Sprint Veloce, GT, GTR, TS, Rally, PX, Cosa and T5.
Fits without modifications in all cars from 1995 and engines from 180cc (ex factory), Vespa T5 and all Cosa models.
MODIFICATIONS
Vehicles with less than 180cc (ex works) need the clutch cover of the 200cc models, if the original existing clutch cover is not to be modified. Vehicles prior to 1995 will require minimal modification to install the Superstrong clutch (see documents under "Downloads").
RANGE OF APPLICATION
Ideally suited for original as well as slightly tuned engines. For applications above 15HP we recommend the BGM Superstrong clutch.
EQUIPMENT
The SC clutch 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.
MANUFACTURING
The SC clutch types are all hand made and tested in house for maximum quality control.
TRANSLATION
A primary drive consists of a clutch (pinion) and a primary wheel.
Piaggio has 65, 67 and 68 tooth primary gears already combined with different clutch pinions from the factory.
This makes it easy to adjust the overall gear ratio to the engine power.
A distinction is made 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 sprockets for 67/68Z and 65Z primary gears. This is the only way to ensure maximum stability.
Primary wheel | Primary wheel original used in | Applicable SC clutches |
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 1977 | 20Z , 21Z , 22Z, 23Z* |
68Z | All 80-150cc models from 1978 on, all Cosa models | 20Z , 21Z , 22Z, 23Z* |
*BGM sprocket with special module!
EXAMPLES
Longer gear ratio:
- PX80/PX125 riders use a clutch with 22 or 23 teeth (suitable for primary wheel 67/68) to increase the gear ratio.
- PX200/Rally200 riders use a 24 tooth clutch (suitable for primary wheel 64/65) for ratio extension.
Shorter gear ratio:
- PX200/Rally200 riders use a 22 tooth clutch (suitable for primary wheel 64/65) for ratio reduction.
TENSIONS
Clutches with straight-toothed sprockets can only be combined with the corresponding straight-toothed primary wheel. To do this, the engine must be fully opened. The extra long primary reduction gears based on the 62/63 tooth primary gear are only available with straight teeth. The high torque of the motors that require such a long reduction is fed directly into the gearbox via straight gearing, without exerting lateral forces on the bearing of the auxiliary shaft. Due to the precise manufacturing, the straight-toothed drives are nevertheless just as quiet as the helical-toothed ones.
TIP
For the widest possible range of ratios, simply install the special BGM 64-tooth primary gear (engine must be completely opened for this). Then, by simply changing the clutch pinion, the engine can be stepped down to suit tame 177cc cylinders or even a torque steamer.
EXTRA LONG
Engines with a lot of torque and early power peak choose the straight-toothed clutches which also need a straight-toothed primary gear (also available as a set). This allows very long reduction ratios to be achieved. This is also ideal when the overall gear ratio is too short in very sporty engines with modified auxiliary shafts and shorter gear steps. Also an option if the actual gearbox is very short (PX80) or the gear ratio is too low due to a small wheel diameter (PX200 engine with 8 inch tires in oldie).
DELIVERY
Included in the delivery is the complete ready-to-install clutch with bgm PRO Cosa clutch plates 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) because we have had the best experience with this in racing with over 40HP shaft power. Tightening torque 70-75NM. We do not recommend other locking devices such as Nordlock, corrugated spring washers (DIN137) or serrated lock washers (DIN6798).
As lubricant we recommend BGM Pro Street gear oil (BGM2025, corresponds to specification API GL-3).
(US111218)
€161.00 *
incl. VAT plus shipping costs
Available immediately (delivery time 1-3 working days*)
P
For this item you get
fidelity point/s
| Gear box (classic scooters) | |
|---|---|
| number of teeth small primay sprocket: | 22 |
| combinable primary sprockets: | 67 teeth helical (Piaggio), 68 teeth helical (Piaggio) |
| Clutch (Largeframe, Wideframe) | |
| teeth clutch sprocket: | 22 |
| height of clutch sprocket: | 9.5 mm |
| number of springs: | 8 |
| number of friction discs: | 4 |
| friction material: | cork |
| thickness friction discs: | 3.2 mm |
| number of steel discs: | 3 |
| inner diameter: | 108 mm |
| inner diameter clutch spider: | 108.8 mm |
| outer diameter clutch spider: | 115 mm |
| manufacturing method clutch spider: | deep-drawn |
| clutch spider reinforced: | |
| OEM numbers (for comparison purposes only) | |
| Scooter Center | SC8098 |
| Customers alternatively searched for | |
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