Heads up!  Last One!!!!!  No more High cost 5G's CNC Billet cut Sliding hub CNC 79cc HF Predator Transmissions will be made.  They are scheduled to be superseded in mid 2025 with a diecast mounting plate making a cheaper cost unit.   

5G- Transmission:  8T/54T/9T & 10T >  8M T-Belt Drive     

• 54T driven pulley with a 9T sprocket is made for High Speed on flat land and / or racing.   

• Includes engine mounting slide plate bracket.

• 5G is made exclusively for the Harbor Freight 79CC slant cylinder 4 cycle Engine.   The HF 79cc engine is considered the best engine choice on the market due to being readily available locally and very low cost currently at $139. 

• GruBee 5G is the only CNC Billet Plate T-Belt Drive Transmission currently made for this engine that we know of.

• DO NOT use this transmission as a retrofit to a Phatmoto moped with a LiFan engine.

• 8M Belt operation is quieter than a  noisy #35 chain drive.    8M belts are much stronger than 5M belts

 GRU-BEE 5G TRANSMISSION INCLUDES THE FOLLOWING ITEMS AND FEATURES:

• 5/8" shaft Centrifugal Clutch has an 18 tooth M8 Belt Drive Pulley.

• Do not confuse the bigger grip M8 belt with a smaller M5 belt used on 49cc engine transmissions.   

• Centrifugal Clutch has a needle bearing instead of a brass bushing. 

• CNC 2-piece billet transmission plate with sliding Driven Pulley Hub. 

• 54T Freewheel driven pulley;

• 8m T-belt. 

• 9T & 10T included sliding chain drive sprockets with ring spacers.

• Final drive ratio;  18T/54T > 9T/56T =  18.6-1 which means one rear bike wheel turn to 18.6 engine rpms.

• Stainless-Steel belt guard cover.  

• 79cc PREDATOR Engine mounting slide bracket is included:     

• ITEMS SHOWN IN THIS ADD THAT ARE NOT INCLUGED.  

• 56T bike wheel sprocket is not included.        Order Separately.   $22.00 extra

• Chrome exhaust pipe is not included.     Order Separately:    $22.95 extra.

• Harbor Freight is your exclusive source for EPA certified Predator 79cc 4 cycle engines.