DOPPLER Ø4mm yellow thrust spring + 25% for Mbk booster, nitro, ...

We present here, a yellow thrust spring from DOPPLER. It has a resistance of 25% (Ø4mm) harder than the original, with it no risk that it is too hard, will be perfect for a scooter equipped with 50cc kit type + exhaust + carburetor and variator settings. For all horizontal and vertical minarelli motor scooters.

Mounts on the following scooters :

APRILIA AMICO 50 2T
APRILIA AREA 51 50 2T LC
APRILIA GULLIVER 50 2T LC
APRILIA GULLIVER 50 2T
APRILIA RALLY 50 2T (MINARELLI)
APRILIA SR NETSCAPER 50 2T LC (MINARELLI)
APRILIA RALLY 50 2T LC (MINARELLI)
APRILIA SCARABEO 50 2T (MINARELLI)
APRILIA SR RACING 50 2T LC (MINARELLI)
APRILIA SONIC 50 2T
APRILIA SONIC 50 2T LC
APRILIA SR STEALTH 50 2T LC (MINARELLI)
APRILIA SR WWW 50 2T

BENELLI 491 SPORT 50 2T LC (MINARELLI)

BETA ARK 50 2T
BETA ARK 50 2T LC
BETA CHRONO 50 2T
BETA EIKON 50 2T LC

BENELLI 491 GT 50 2T (MINARELLI)
BENELLI K2 50 2T
BENELLI K2 50 2T LC
BENELLI NAKED 50 2T
BENELLI PEPE 50 2T

BETA QUADRA 50 2T

BSV AX 50
BSV GZ 50

FANTIC BIG WHEEL 50 2T

ITALJET DRAGSTER 50 2T LC

MALAGUTI F10 50 2T
MALAGUTI F12-PHANTOM 50 2T
MALAGUTI CENTRO 50 2T
MALAGUTI CIAK 50 2T
MALAGUTI F15 FIREFOX 50 2T LC
MALAGUTI F12 DIGIT KAT-PHANTOM 50 2T LC
MALAGUTI F12 DIGIT KAT-PHANTOM 50 2T LC euro 2
MALAGUTI F12-PHANTOM 50 2T LC
MALAGUTI F12 R LC 50 2T LC euro 2
MALAGUTI YESTERDAY 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 X 50 ie 4T LC euro 2
MBK FLIPPER 50 2T
MBK FORTE 50 2T
MBK HOT CHAMP 50 2T
MBK MACH G 50 2T
MBK MACH G 50 2T LC
MBK BOOSTER NAKED 50 2T euro 2 (A137E)
MBK NITRO 50 2T LC
MBK BOOSTER NG 50 2T euro 0-1
MBK BOOSTER NG 50 2T euro 2 (A137E)
MBK OVETTO 50 2T
MBK BOOSTER ROCKET 50 2T euro 0-1
MBK BOOSTER ROCKET 50 2T euro 2 (A137E)
MBK SORRISO 50 2T 1996->
MBK STUNT 50 2T euro 0-1
MBK STUNT 50 2T euro 2

YAMAHA AEROX 50 2T LC euro 0-1
YAMAHA AEROX 50 2T LC euro 2
YAMAHA AEROX 4 50 ie 4T LC 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 C3 [XF] 50 ie 4T LC euro 2 (A311E)
YAMAHA JOG ER 50 2T
YAMAHA GIGGLE [XF] 50 ie 4T LC euro 2 (A311E)
YAMAHA JOG 50 2T
YAMAHA JOG R 50 2T
YAMAHA JOGRR 50 2T LC euro 2
YAMAHA JOG Z 50 2T
YAMAHA NEO'S 50 2T
YAMAHA NEO'S 4 50 ie 4T LC euro 2 (A316E)
YAMAHA SLIDER 50 2T
YAMAHA SPY 50 2T
YAMAHA VINO 50 2T
YAMAHA VOX [XF] 50 ie 4T LC euro 2 (A311E)
YAMAHA WHY 50 2T