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

Ideal to gain top speed with good congiguration, here is the extended primary transmission DOPPLER for scooter 50cc MBK, YAMAHA, APRILIA ... VERTICAL MINARELLI engine such as booster, spirit, stunt, slider, rocket, next generation ... ( after 1996 only)! Often, with a large configuration, we reach the top speed limit because we arrive at the limit of the engine speed once the variator and the torque corrector are at the bottom, the solution is therefore to put a lengthened transmission.

Thanks to this transmission, your speed will be higher at the same engine speed! We generally gain 10 to 20km / h in speeds of 11,000 to 13,500 revolutions per minute! Don't forget to order the appropriate transmission oil! This straight toothed transmission is a little noisier, but also more efficient! The straight teeth offer less loss than the original leaning (helocoidal)!

On this version, no press needed, the first 13-tooth pinion is delivered to you already assembled at the press !

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