Cagiva mito 125 7 speed gearbox 5P engine Gears ( difference )

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I get asked a lot about the differences between the 7 speed and 6 speed bikes .

Usually the 7 speeds are fitted along with better barrels carbs and exhausts so yeah there is a big difference , i have tried and ordinary 6 speed with a 7 speed and yes it was also fun .

When rebuilding a Cagiva Mito 7-speed gearbox, ensure the gear selector drum and the additional 3rd selector fork are perfectly aligned. A "false neutral" or gear hang-up at high RPM can lead to immediate rear-wheel lockup, posing a severe crash risk.


How to ID a 7-Speed from the Outside

You don't need to split the cases to know what you have. Look for these two stamps on the engine casing:

  1. The "5P" Stamp: This is the definitive mark of the 7-speed gearbox.

  2. The Year Code: Codes like BG97 indicate a 1997 Evo 1. These early Evos paired the 7-speed box with the more aggressive "200H" head and "60433" barrel, making them the fastest factory Mitos ever made.

Mechanical Differences: 6-Speed vs. 7-Speed

The 7-speed isn't just "one extra gear." To fit it into the standard engine architecture, Cagiva had to get creative:

  • Machined Casings: To squeeze the extra gear in, the internal engine cases were specifically machined (shaved) at the factory to provide clearance.

  • The Selector Fork: A 7-speed uses three selector forks instead of the two found in the 6-speed.

  • The Drum: The selector drum is unique to the 7-speed; you cannot simply "drop" a 7-speed gear set into a 6-speed engine without the matching drum, forks, and case machining.

2026 Collector Advice

If you are buying a Mito as an investment, the 5P engine is your top priority. While the 6-speed is "fun," the 7-speed provides a tighter powerband that keeps the 2-stroke engine in its "sweet spot" (the power-valve zone) much more effectively during spirited riding.

Im not the sort to obsess about power and gear ratios etc but yes 7 speeds are fun but then again so are 6 speeds .


Here is how you tell if you engine is 6 or 7 speed and the mechanical differences .


Cagiva mito 125 7 speed gearbox 5P engine Gears ( difference )


As you can see in above picture ( not very clearly )  the engine code stamp 5P this tells me it is the 
7 speed engine .


under this stamp is the engine number 

Mine begins with BG97   which tells me its a 1997 model so a cagiva mito evo 1 1997 .



That s how you tell year and if its 7 speed from the outside of engine .


Here are the internal differences 

The engine cases are the same as in a six speed Cagiva just shave off a bit of metal to be able to squeeze in the extra gear .


Cagiva mito 125 7 speed gearbox 5P engine Gears ( difference )

close up picture of machined casing 

Cagiva mito 125 7 speed gearbox 5P engine Gears ( difference )



The only other differences are in the gearbox itself obviously 7 gears on input - output shafts 

Cagiva mito 125 7 speed gearbox 5P engine Gears ( difference )


Cagiva also added an extra selector fork which is needed to select the gear , i presume the shafts are the same lengths as before to avoids case changes and i also assume the selector drum would be different ill find out when i get a 6 speed in bits to compare .



Buy 7 speed gearbox from Ebay UK here 

Cagiva mito 125 7 speed gearbox 5P engine Gears ( difference )





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