Aprilia Italjet MBK Yamaha MALOSSI Primary Gears 16-24

We know how it goes: you've done your best to tune up your motor to bring it up to an appreciable performance level - then find that your speed isn't going any where cause the original transmission only helps with acceleration rather than bringing the power performance up where you really want it. Always at the limit, your motor works it's heart out for you, but..... which in turn means stress, wear and tear for crankcase, bearings and pistons.

Fitment:

Model / manufacturer	cc	Engine	Year of construction
APRILIA Amico	50	2T AC	'91-'92
APRILIA Amico	50	2T AC	'93-
APRILIA Amico GL	50	2T AC	'93-
APRILIA Amico Sport	50	2T AC	'94-
GARELLI/ FANTIC Big Wheel	50	2T AC	'93-
ITALJET Pista 2	50	2T AC	'93-
ITALJET Scoop	50	2T AC	'93-
ITALJET Yankee	50	2T AC	'92-
MBK Booster	50	2T AC	'90-'94
MBK Booster 12"	50	2T AC	'04-
MBK Booster euro 2	50	2T AC	'02-
MBK Booster NG	50	2T AC	'95-'98
MBK Booster NG	50	2T AC	'99-'01
MBK Booster NG euro 1	50	2T AC	'99-'00
MBK Booster NG euro 2	50	2T AC	'02-
MBK Booster Road	50	2T AC	'94
MBK Booster Rocket	50	2T AC	'95-'98
MBK Booster Rocket/Naked euro 2	50	2T AC	'02-
MBK Booster Spirit	50	2T AC	'95-'98
MBK Booster Spirit	50	2T AC	'99-'01
MBK Booster Spirit euro 1	50	2T AC	'99-'00
MBK Booster Spirit euro 2	50	2T AC	'02-
MBK Booster Track	50	2T AC	'95-'98
MBK Stunt	50	2T AC	'99-'01
MBK Stunt euro 2	50	2T AC	'02-
MBK Stunt Naked	50	2T AC
YAMAHA BW 's	50	2T AC	'90-'94
YAMAHA BW's	50	2T AC	'99-'01
YAMAHA BW's 12"	50	2T AC	'04-
YAMAHA BW's Bump	50	2T AC	'95-'98
YAMAHA BW's euro 1	50	2T AC	'99-'00
YAMAHA BW's euro 2	50	2T AC	'02-
YAMAHA BW's NG	50	2T AC	'95-'98
YAMAHA BW's NG	50	2T AC	'99-'01
YAMAHA BW'S NG Cat	50	2T AC	'99-'01
YAMAHA BW's NG euro 1	50	2T AC	'99-'00
YAMAHA BW's NG euro 2	50	2T AC	'02-
YAMAHA Slider	50	2T AC	'99-'01
YAMAHA Slider Cat	50	2T AC	'02-
YAMAHA Spy	50	2T AC	'95-
YAMAHA Zuma	50	2T AC
YAMAHA Zuma II	50	2T AC

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