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4 stroke bicycle engine kit

FOB Reference Price:Get Latest Price
US $100-170 / Unit | 200 Unit/Units (Min. Order)
Supply Ability:
1000 Twenty-Foot Container per Month
Seller Support:
Payment protection
On-time shipment
Product quality protection
Place of Origin:
Jiangsu, China (Mainland)
Brand Name:
GruBee SkyHawk
Model Number:
Model #1:
for Huasheng 142F-1G and 144F-1G engine
Model #2:
for Honda GXH50 49cc engine
US patent pending
Transmission design:
T Belt freewheel pulley drive
everything needed for DIY installation
Packaging & Delivery
Packaging Details:
Branded Boxed individually; LCL orders packed 45 kits on steel framed skid pallets; Container lots bulk packed 1000 per container
Delivery Detail:
Shipped in 0 days after payment


Bicycle Engine Kit, Sold exclusively by China GAS factory direct to qualified wholesale WD accounts


Salient Features of GruBee SkyHawk 4 cycle bicycle engine installation kits;
  • 4 cycle engine kits are Twice as expensive as the China made 2 cycle bicycle engines but 4 cycle is so much more smoother and vibration free thus producing a much more enjoyable ride.    Hear only the sound of a purring 4 cycle combustion but just twist the throttle to 6800 rpm and go faster than a same size 2 cycle engine bike.   Plus the fact 4 cycle engines do not require a troublesome gas oil mix.  
  • GruBee 4G T Belt Transmission made exclusively by China GAS in our own factory;
  • 4G Transmission is American engineered with USA patent pending. .
  • Order your 4 cycle engines direct from the engine manufacture to get best warranty and prices.

Installation Kit items shown by number in picture:


#1.  4G T belt transmission;  US Patent pending:  China Copy Cats beware;

#2.  Transmission fits Huasheng 49cc or Honda 50cc engine.

#3.  Slide adjustable mounting bracket holds engine between downtube and seat tube.

#4.  Twist grip throttle and cable. Centrifugal clutch operated;  give > gas > go 

#5.   HD 415 size drive chain.

#6.   Ball bearing chain idler. 

#7.   Rear wheel sprocket;  Choose 44T 48T or 56T     HD axle kits are also available;

#8.   Bike frame;  Optional special made alum. frame with built in gas tank.             

( A. )   3 engine mufflers & 3 size gas tanks available as 4G kit options:                                    ( B. )   3 driven pulley options including a New 80T driven pulley with Freewheel

( C. )   New Peek-a-Boo pulley cover allows using LED centrifugal lights for night sparkle.  


4G Kit Model #1   for Huasheng engine with built in Centrifugal Clutch.


4G Kit Model #2   for 5/8" straight shaft engines like Honda GXH50 & Huasheng F142.


To learn more about this newly designed kit see product details at: www.grubeeinc.com


We do not sell our kits retail one kit at a time like our China competitors do who sell the cheaper made nosey gear box kits.   We protect our wholesale account customer base by not selling backdoor from China.   We only sell to qualified Wholesale Distributors who can provide after the sale customer service.   We do not sell to fly by night PP guys > Picture Price inquires who know nothing about bicycle engines or service.   To qualify for WD status and receive pricing information and catalogs send us your company profile and marketing plan for immediate reply.   

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