fat tire and gx120 honda 2 hp

A 7G 'Ghost Rider' belt drive and clutch may fit that mount pattern and shaft.

GX120_LB.jpg
 
Depends on the V in the bike frame if it will fit or not, all bikes are different. The link I posted above click on specs and it gives you the dimensions of the motor to measure with. That motor has a 3/4in straight crank shaft and that won't work with a lot of premade trans that Mabs use which uses a 5/8ths straight shaft. Some folks have hooked up a 212cc HF motor to a trannie so I dunno. Hopefully someone who has experience will chime in to help.
 
what fat tire bike will this motor fit in and and trans-dapt kit to final drive?
As far as Fat Tire bikes go, the largest center cavity one I have found is the Sun Crusher.

SunCrusherAlmost3L.jpg


I know it would fit a 49cc 4-stroke with 7G and shift kit, that is a 2-stroke shifter.
If that 120cc will fit is another story.
 
Nice find KC,
If the 49cc 4-stroke fits, the older (flathead) gx100 and its clone Lifan 97cc (baja minibike) might fit.
 

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Nice find KC,
If the 49cc 4-stroke fits, the older (flathead) gx100 and its clone Lifan 97cc (baja minibike) might fit.
It certainly looks promising, and that Sun really was a fun bike to ride.
We ran the tires at ~20PSI and it felt like riding a full suspension bike, well, almost.

2_SunFat66cc7sR-1280.jpg


My 'wrench turner' Cole fell in love with it, he'd make excuses to take it for a parts run whenever he could and wanted me to price it too high to sell.
I did, but it sold anyway, just not before he took it to play around here.

SunFatDirtR-1280.jpg


SunFatGrassL-1280.jpg


Note that chain guard did not come with the bike, it was just something I had laying around but it worked ;-}

With a 100cc shifter that would be a monster.
 
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