Will Post This Just For Thought. Was Looking At The "hybriped" Sprocket System Sold By Bicycle-engines.com.
Many People Are Confused About It`s Function.
After Looking At It, There Is A Nice Option! But Pricey ! THEY HAVE VIDEO.
Out Of The Box With The Pins In It Allows; Pedal Starting And Engine Assist And Cruising.
With The Pins Out It Allows Pedeling Without Engine Drag. Engine Assist Is Not Available, Not Connected. = There Are No Thread`s On The Hub For The Freewheel To Screw Onto.
Here Is My Idea If You Want Pedal Start And Freewheel Cruising With Engine Power!!
Buy The 4 Stroke Hd Axle Kit From Bicycle-engines (have It Laced To A Rim).
Now You Can Install The Rag Type Part Loosely, Screw On The Large Sprocket With Freewheel And Install The Pins To Align Rag Joint And Tighten.
Spacer Shim`s May Be Needed To Keep The Freewheel From Screwing On Too Far, Thus Rubbing On The Rag Joint.
Now The "happy Time" Engines Can Be Pedal Started With The Pins In. Remove The Pins And The Engine Can Power The Wheel Thru The Freewheel.
Now You Have "stealth Mode"!! Lol If The Po Po Is Lurking, Hit The Kill Switch And Pedal Away Without Engine Drag.
It Looks Like The Freewheel Encluded With The "hybriped" Is Right Hand Thread, (left Hand Thread Sprockets = South Paw Have Black Sheilds).
The Hd Axle Kit Has The Left Hand Free Wheel Adapter Included. It Has 5 Holes For Attaching To Large Sprocket. Hybriped Has 4 Holes And Using A 16 Tooth Freewheel Sprocket Which May Have A Bit Larger Hub. Hole`s could be drilled into the hd axle kit sprocket for the 2 pin`s.
Just Figured This Out Last Week. Have Been Thinking Of A Thread On It. Maybe Of Interest To The Wealthy!! Lol. Will start a thread later. Ron .

PS The "Hybriped" is in 2 stroke parts, chain system. The hd freewheel axle kit is under 4 stroke parts.