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Gru-Bee SkyHawk GT5A-ES 66cc ENGINE AND TOTAL INSTALLATION PARTS KIT > includes OCDT. 

FYI: After our present inventory is sold out, we will no longer be selling 2 stroke engines.   So, get one while you still can.   Our Avenger 85 engines are all gone!

The Gt5A-ES is an easy start engine that can be Pedal started or handheld Electric Drill started with our OCDT!

OCDT = Overrunning Drive Clutch Tool 

FREE USPS SHIPPING to USA States only:     

We don't smuggle in.  Our Prices are higher due to paying the 55% US tariff on China made goods and much higher shipping cost from China due to being located in the middle of the USA.

• For Cordless Electric starting use our included OCDT tool.  

• Electric Start means an OCDT works in conjunction with a 20V handheld  cordless battery powered 1/2" drill or a modified 1/2" drive impact diver. 

• ( If using a 1/2" drive impact wrench you must have the hammer flappers disabled by welding them shut or you will damage both the engine and OCDT bearings which is not covered under warranty. 

• Our new Gt5A-ES engines includes the new TZ Red wire Ignition system with the hot new HP Red wire CDI & Magnum high flux density rotor for super quick starts and improved rpm range.  

To know the data driven difference in ignition go to our info. side of www.grubeeinc.com and click SkyHawk 2 cycle then click #7.  

GT5A-ES Complete Motorized bike kit; Everything included except a bicycle. 

        A new addition this year includes a 7 pcs shim kit that allows mounting on a 43mm down to 28mm dia. bicycle downtube!  a $12.00 value

   High Rev SkyHawk Gt5A-ES ENGINE Specs:  66cc displacement  / max. rated power @ 2.2 kw  / 2.9hp. / 6000rpm   47mm x 38 mm Bore and Stroke.

• Engine Kit Includes:  Muffler, 19mm Bafung Carb, Throttle, and Clutch Lever,  2.5L tank plated inside to prevent rusting, Tank valve, Black Rubber fuel line, 125 link 415 chain, chain guard, 44T chrome sprocket and clamp to spokes kit.    Only Gru-Bee tanks are plated inside!

• 44T sprocket and clamp to spokes installation kit is included, however, a "HD Axle Wheel" is the best pro. option for form, fit and function.  See our HD AXLE WHEEL listing.

• Chrome 12A muffler and a NT High Performance 14.95 dia. slide valve Big Bore Carburetor made exclusively for this size engine.

• Gas tank is 2.5L capacity plated inside to prevent rusting; not the cheap 2L un-plated tanks sold by others in California. 

• Front Mount with M8 studs and shim kit fits up to a 43mm dia. downtube and down to 28mm dia.

• M8 studs front engine mount spacing is 60mm center to center. 

• We include a 7pcs Half Moon Shim Kit in with this Kit = a $15 value.

• Experience Smooth Electric starting by using our Over-Running Clutch Drive Tool ( OCDT) with a cordless drill or you can use a modified 1/2" drive impact wrench that has the hammer affect removed to have a smooth run engine start.   See pic here-in. 

• YES sir; OCDT is included. 

• Carry your OCDT cordless tool in a belt holster for instant Wing Ding Ding engine starts or stashed away in a saddle bag.    

• TZ-CDI is included and is external mounted on bike downtube or seat tube.

• Includes all the necessary parts to install on a bicycle to create a motorized bike or more commonly called a "MOPED".

• For a pro-shop installation check out our HD AXLE WHEELS at the info. side at www.grubeeinc.com  

• HD Axle Wheels sold separately and shipped separately by UPS :  PLEASE DO NOT ORDER WHEELS WITH THIS ENGINE KIT on same G order number.

• For night running attach a handlebar battery powered LED head light which is much more efficient than trying to use a magneto secondary coil powered 6V light.   No need to buy a Bullet Train just to get a head light!

• Your bicycle can be people pedaled in normal mode with the engine power on or off.    

• Great for those folks with DWI's who need a way to work and also for college students who want to motorize to campus and then people pedal on campus sidewalks with engine off.

• How does a Suck and Blow 2 stroke engine operate.  Check out this video clip.                      https://www.2strokeengine.net/.../2strokeengineanimation...