Elongated primary transmission 14/42 or 15/50 DOPPLER for vertical scooter minarelli (booster, bw's, stunt, rocket ...)

Ideal to gain top speed with a good congiguration, here is the extended primary transmission DOPPLER for 50cc scooter MBK, YAMAHA, APRILIA ... VERARIAN MINARELLI engine like booster, spirit, stunt, slider, rocket, next generation ... ( after 1996 only)! Often, with a large configuration, we arrive at peak speed limit because we arrive at the limit of the engine speed once the drive and the torque controller are at the bottom, the solution is therefore to put an elongated transmission. Thanks to this transmission, your speed will be higher at the same engine speed! We generally win 10 to 20km / h in revs of 11 000 to 13 5000 revolutions per minute (two versions with the choices, semi long and long)! Do not forget to order the transmission oil that goes with it! This transmission in straight teeth is a little noisier, but also more powerful! The right set of teeth offers less loss than the original (helical) leaning!

On this version, you need a press, the first gear must be taken from the original transmission and coupled to this transmission!

Mounts on :
APRILIA AMICO 50 2T
FANTIC BIG WHEEL 50 2T
ITALJET PISTA 2 50 2T
ITALJET SCOOP 50 2T
ITALJET YANKEE 50 2T
MBK BOOSTER 50 2T euro 0-1
MBK BOOSTER 50 2T euro 2 (A137E)
MBK BOOSTER SPIRIT 50 2T euro 0-1
MBK BOOSTER NAKED 50 2T euro 2 (A137E)
MBK BOOSTER NG 50 2T euro 0-1
MBK BOOSTER NG 50 2T euro 2 (A137E)
MBK BOOSTER ROCKET 50 2T euro 0-1
MBK BOOSTER ROCKET 50 2T euro 2 (A137E)
MBK STUNT 50 2T euro 0-1
MBK STUNT 50 2T euro 2
YAMAHA BW'S 50 2T euro 0-1
YAMAHA BW'S 50 2T euro 2 (A137E)
YAMAHA BW'S Original / Naked 50 2T euro 2 2010-> (A137E)
YAMAHA BW'S NG 50 2T euro 0-1
YAMAHA BW'S NG 50 2T euro 2 (A137E)
YAMAHA SLIDER 50 2T
YAMAHA SPY 50 2T
YAMAHA ZUMA 50 2T