I
Irish John
Guest
There are members here who have mounted the 4-stroke Grubee kits into the Felt frames. I do believe the fit is tight but can be done. The front triangle of the frame is wider down low and because of that the engine and motor mount can go lower than on your schwinn. Search for a thread called Felt V-10 4 Stroke and you should come up with a members bike with several photos in the picture gallery.
ocscully
I have searched long and hard for any mention of 'Felt' and all I've seen is HT motors in them. There is talk of 4-strokes in Felt cruisers -like from myself and Sheik - but I can't see it having got any further than just talk.
Your suggestion, Oscully, to drop the mounting tray low brings up the problem of the tray and engine width interfering with the chain ring on the wide cranks. Even on the wide crank the chain and ring needs to be cleared so your back to where I started - not enough room below the top tube. Not to mention a problem with the tray not being long enough to reach from the seat post to the down tube as you are forced to go upwards. None of these problems are insurmountable but I'm yet to see an example of a 4-stroke in a Schwinn cruiser. I have a fair idea who'll be the first to do it and it isn't me.