BETTER
Suitable for all types of use, whether tourer or racer.
With 36 teeth one tooth shorter than the original 4 gear wheel of a PX200.
The gear connection to the fourth gear is noticeably improved.
FIT
Suitable for all transmissions with a flat shifting cross. These gearboxes can be identified by the main shaft which has a circlip in front of the gears. The middle segment, on which the shifting cross rests, is with
The middle segment of the BGM gearwheels is larger (approx. 1/10mm) and thus offers even more contact surface for the gearshift cross.
TIP: Ideal combination with the longer reduced 64 teeth BGM Pro primary gear. The total gear ratio is significantly longer in conjunction with a 24Z clutch pinion, the gear jump three to four but shorter. This allows the full engine power to be converted into top speed.
NOTE: The fourth gear with 36 teeth was developed by Piaggio for the 125cc models. It was constructed by a so-called tooth flank shift from the 4-speed of the 150/180/200cc models with 35 teeth. By this technique the gearing of the auxiliary shaft could be kept identical for all models. A disadvantage of the 36 tooth gear is however the narrower tooth base. This results when more teeth have to be accommodated on a given diameter. The narrower tooth base is of course not as stable as the 35 tooth gear, which is why Piaggio only used it in the 125cc models.
However, the short 36 Z gear is very popular on performance 200cc engines. With very sporty engine layouts, the jump from gear 3 to gear 4 is too big and the engine can't get into its powerband. With today's very high-torque concepts (like Malossi Sport/MHR or Quattrini M244) this tuning trick from the 1990's is still often used.
We strongly recommend to use a 4 speed with 35 teeth. The high engine torque together with a load peak (gear jumping, shifted etc.) can otherwise damage a 36 tooth gear. If you still need a shorter gear jump, you should realize this with another auxiliary shaft with less teeth (e.g. BGM6505 or BGM6506).
(US)
incl. VAT plus shipping costs
General | |
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EAN: | 4251389104117 |
Gear box (classic scooters) | |
number of teeth 4th gear: | 36 |
type of teeth: | straight |
combinable X-mas tree: | 12-13-17-21 teeth (BGM PRO), 12-13-17-21 teeth (Piaggio) |
OEM numbers (for comparison purposes only) | |
Piaggio | 2232294 |
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