5G -72T- Belt Drive Transmission Only For Predator 79cc engine

  • BIG NEWS:   5G is here!

WE ONLY MADE 10 OF THESE 18T/72T/9T  8M T-Belt TRANSMISSIONS BY EXPENSIVE CNC MACHINING PROCESS OF 6061-6T ALUMINUM TO TEST THE MARKET.                                            

IF WE SELL OUT, ALL FUTURE 5G TRANSMISSIONS WILL BE MADE OF CAST ALUMINUM TO CUT COST.

    • Gru-Bee 5G- 8T/54T/9T 8M T-Belt Drive Transmission. 

    • This model provides Higher Torque and Lower Speed  for heavy riders and hill country.

    • Made exclusively for the Harbor Freight 79CC slant cylinder 4 cycle Engine.   Considered the best engine choices on the market due to being  readily available locally and low cost. 

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

    • 8M Belt operation is quieter than a loud noisy #35 chain drive. 

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

    • Centrifugal Clutch with a 18 tooth M8 Belt Drive Pulley. 

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

    • CNC 2 piece billet transmission plate with sliding hub. 

    • 54T Freewheel 8m belt driven pulley.  

    • 9T sliding drive sprocket with ring spacers.

    • 8M T Belt.  

    • Final drive ratio;   18T/54T > 9T/56T =  18.6 to one engine rpm

    • -Steel belt guard cover.  

    • THESE ITEMS SHOWN IN THIS ADD'S PICTURES ARE NOT INCLUGED WITH THE 5G TRANS. 

    • 79cc PREDATOR Engine mounting bracket is not included:   Order Separately:    $50.00 extra

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

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

    • Gt2A Red bike Frame is not included.                                    Order Separately:    Out of stock.   Can Use other suitable frame bikes as current option.

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

    My WAG, ( wild ass guess ), is that our transmission may also fit LeFan’s 79cc vertical cylinder engine.  We have not had a chance to check it out yet.    We just got back from China when the airlines started flying again.    We were stuck in China for 9 months.