Subaru Robin EHO35 33.5 cc (1.60 hp.) Four Stroke engine. INSIDE DRIVE
This is a complete kit including the engine listed above, plus the following parts that are needed to install on most bicycles:
Gearbox (included)	The Staton-Inc 18.75 to 1 INSIDE Drive gear reduction box that has Six high speed double sealed ball bearings, 1/2 inch thick gears, a 5/8 inch INSIDE drive output shaft that has a 3/16 inch keyway along with two snap ring groves to hold the sprocket in place.
	The gear box has a centrifugal clutch and the engines are all easy pull start.
Hub (included)	The Staton-Inc CNC custom machined dual threaded hub that has FOUR high speed double sealed ball bearing, your pick of a 28 hole, 32 hole, 36 hole or 48 hole spoke hub, includes a 10mm x 1.0 x 7 - 7/8 inch long axle, two 10mm x 1.0 flange nuts, the center of hole to center of hole is 2.052” (2 – 1/16”). The person re lacing the hub will have to DISH the wheel and add spacers to one or both sides to match your bike. (Complete wheels are extra)
add a wheel	Or you can add a pre-built wheel; we have many sizes to choose from. Use the drop down menu when ordering.
add a sprocket	You can also add a sprocket for the right side drive chain we carry 1 speed or 7 or 8 speed sprockets. Many customers reuse their original sprocket if it fits.
Gear (included)	A machined #41H sprocket Your Choice up to 14 tooth for the gear box. Use the drop down menu when ordering.
	The top speed (30 + mph) can be changed just by taking the sprocket off the gear box and replacing it with a larger one.  If you want more low end pulling power and lower top end speed replace it with a smaller sprocket.  Extra sprockets are on our add on Parts page
	Note: There is NO Sprocket & chain guard for the INSIDE drive gear box.
Sprocket (included)	16 tooth Left hand threaded freewheel sprocket for the left side of the hub.
Chain (included)	Approximately 46” of #41 chain and two connecting links.
Throttle cable (included)	A 60 inch long throttle cable and finger / thumb lever for the throttle control. (Twist grip or longer cable is extra)
Add a longer cable	You can Add a longer throttle cable or a Twist Grip throttle. Located on our Add on Parts page.
Stop Switch (included)	Remote toggle engine stop switch with handlebar mount for safety.
Mounting Bracket (included)	The U shaped mounting bracket and four supports for the gear box.
Small Parts (included)	Nuts and Bolts Plus many other small parts needed for mounting.
Note: You may need other hardware that is not included in the kit depending on the style of bike. Robin - Subaru (INSIDE DRIVE) EHO35 33.5 cc 1.60 hp Four Cycle engine with the 24 oz on board tank. This Gear & Chain Drive kit is for Bicycles. The INSIDE Drive kit comes with most of the standard mounting parts for a "Outside Drive" kit, plus we send you a 9" long G8 bolt. The INSIDE Drive kit will be harder to install then the outside drive kit. You will have to design and buy the alum angle - flat bar if you want to mount it as shown. This customer did a outstanding job mounting it. He has safety bumpers on both sides to protect the engine if the bike falls over.
For a Full Suspension Bike you will need extension brackets to extend the engine behind the seat to allow for the suspension to move, like in the pictures in our GALLERY. We sell 8 inch extension brackets on our add on Parts page or you can make your own using 1” x ¼” Aluminum flat bar (you can purchase at hardware store)
Note: Our chain drive kit will not work with a disc brake.
You can Motorize any bike; we carry many parts for your custom installation and other size Chain Drive Engine Kits. As well as Engine Kits for Trikes. We also carry Friction Drive Kits.
Please be sure and click on the GALLERY pages to your left to see examples of our kits installed on various bikes and read some more information.
This is a complete gear & chain drive kit. As with all the engines brands & sizes this can be put on other product - types - styles of bikes. The kit shown is the INSIDE Drive, where the gear box in more to the left side of the tire and the output shaft comes out in between the gear box and the engine. The inside drive gear box will be harder to install than the standard kit but many customers like the way they look. Note: This bike has some custom made mounting brackets made by the customer. These custom parts are not included.

Product SKU: SubaruEHO35 INSIDE DRIVE