5G -54T - Belt Drive Transmission kit & HD Axle Wheel for 79cc Predator

Grubee Inc


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5G-54T 9T/10T-8M T-Belt Transmission, Engine Mounting Bracket & HD axle wheel combo.    

Drive pulley has 18T and Driven Pulley has 54T belt groves around the circumference. = 3 to 1 ratio:   

With a 56T rear sprocket the final drive ratio is 18.7 to one.

This is the Predator Pro-Shop kit that includes everything except the Predator 79cc engine to do a top notch professional job.   We DO NOT recommend this transmission to be applied as a retrofit to a Phatmoto moped.

To see component details check out all the salient features in the 5G transmission adds and the HD Axle wheel details in the Bike Frame section. 

 INCLUDED:  5G-54T / 9T/10T CNC transmission = $200 value

INCLUDED:  Dragon Gas Tank, / Throttle / 56T sprocket / Wide Pedal Kit.    $40 value

INCLUDED:  79cc Predator Engine slide adjust bracket. = $50 value

INCLUDED:  HD Axle bike wheel for your choice.    Choose a 135mm dropout wheel for single speed or 150mm for multi speed.   = $130 value

Denote your wheel choice with a note to seller at check out.  Tell us 135mm or 150mm.  

NOTE:  The 5 hole Freewheel hub for 5 hole sprocket is not needed as our 4G and 5G transmissions both have a built in freewheel in the driven pulley.  

 NOTE:  The 4 ITEMS LISTED BELOW ARE NOT INCLUDED due to so many variations of choice.   

1.  Right side single speed 1.375-24 screw on single speed freewheel pedal sprocket or multi-speed Freewheel cluster 

2.  Disc Brake rotor and caliper 

3. Sprocket attach M6 bolts.


Email if you have questions not answered in our web site.   

Basic 5G Transmission Installation instructions are found on the info. side of www.grubeeinc.com