PERFORMANCE
The ready-to-install clutch is tuned for a power range up to approx. 20PS / 22Nm by means of the mounted clutch springs. Reinforced springs (available separately, BGM PRO XXL) extend the power range of the clutch to over 40 HP. At the same time it still remains easy to operate.
VEHICLES
The bgm Pro Superstrong replaces every conventional type of clutch as used in the
Vespa large frame models with inlet rotary vane control from about 1967 onwards.
Usable in Vespa GL, Super, Sprint, Sprint Veloce, GT, GTR, TS, Rally, PX, Cosa and T5.
MODIFICATIONS COVER TYPES CR TOOTHINGS primary wheel primary wheel originally installed in Usable BGM Superstrong couplings 62Z* x 23Z*, 24Z*, 25Z* (straight toothed) 63Z* x 24Z*, 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 BITTE NOTE: The BGM straight-toothed primary pinions and primary wheels cannot be combined with Polini or Malossi parts. The module is chosen differently for the BGM parts for maximum stability. (US)
Vehicles with less than 180ccm (ex works) require the clutch cover of the 200ccm models, unless the original existing clutch cover is to be modified.
In the CR version we offer the clutch with the clutch facing type of the Honda CR80/VFR400.
These have a larger effective radius, less weight, wider plates and a very resilient facing material. The advantages are a lighter clutch that separates faster and yet is extremely resilient.
Clutches with straight-toothed pinions can only be combined with the corresponding straight-toothed primary gear. To do this, the motor must be fully opened. The extra long primary reduction ratios based on the 62/63 tooth primary gear 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, the straight-toothed drives are nevertheless just as quiet as the helical-toothed drives. A difference is made here between 67/68 and 65 teeth.
Due to the different so-called gear modules, 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.
For the greatest possible gear ratio range, simply install the special BGM 64 tooth primary wheel (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.
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 if the overall gear ratio is too short for very sporty engines with a modified auxiliary shaft and shorter gear steps (e.g. MHR). 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 tyres in Oldie).
The scope of delivery includes the complete ready-to-install clutch with bgm PRO Cosa clutch facings and ten 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 safety devices such as Nordlock, waved spring washers (DIN137) or serrated lock washers (DIN6798).
As lubricant we recommend the BGM Pro Street gear oil (BGM2025, according to specification API GL-3).
AI-translation
incl. VAT plus shipping costs
General | |
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EAN: | 4251389106845 |
Gear box (classic scooters) | |
number of teeth small primay sprocket: | 23 |
combinable primary sprockets: | 62 teeth straight (BGM PRO, DRT), 63 teeth straight (BGM PRO) |
Clutch (Largeframe, Wideframe) | |
teeth clutch sprocket: | 23 |
height of clutch sprocket: | 9.5 mm |
number of springs: | 10 |
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: | 118 mm |
manufacturing method clutch spider: | CNC machined |
clutch spider reinforced: | |
OEM numbers (for comparison purposes only) | |
bgm | BGM8123 |
Customers alternatively searched for | |
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Kupplung | Kulu | Koppeling | Clutch | Schleuderbacken | Schleuderbackensatz | Kraftübertragung | Kupplungsrupfen | Kupplungsrutschen | Anfahren | Ruckeln | Anfahrruckeln | Durchgehen | Embrayage | Frizione | Embrague | |
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