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Gears, Top Racing Secondary Transmission for 50cc 4-Stroke 139QMB Scooters


List Price: $119.99
Sale Price: $99.99
Out of Stock

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Top Racing Secondary / Final Drive Gears for 50cc 4-Sroke 139QMB Scooters


COMPATIBILITY:
  • BMS - Apache 50 4T, Heritage 50 4T
  • Diamo - Classic 50 4T
  • Lance - Charming 50 4T, GTR 50 4T
  • Roketa - Bahama 50 4T, Maui 50 4T, Sicily 50 4T
  • Tank - Urban 50 4T, Sporty 50 4T, Viaggio 50 4T
  • Many Other 50cc 139QMB Based Engines
  • **This will not work on the QJ models

The Portuguese tuning specialists, Top Racing, are a symbol of high quality scooter components. Due to advanced production techniques, and over 50 years of experience many European brands entrust their tuning to Top Racing. The relatively simple installation of The Top Racing transmission is another reason to look no further than the Portuguese brand.


To increase performance and speed, you need more power and also a longer gear. Since most vehicles are factory-fitted with a very short gear, you should assemble a longer gear to protect the engine from over-revving and can use more speed.


The secondary Top Racing transmission must be pressed with the original Primary gears. With a little skill, this is not too difficult. Top Racing ratio:: longer 16/50 +9% than the original transmission.


**MADE IN PORTUGAL**


**NOTE: Electrical, High Performance, Aftermarket items are non-returnable, please check photos and specifications before ordering.


Please see our Warranty and Returns Policy
Manufacturer: Top Racing

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