Aluminum Genesis frame prep?

Do some research! Do not use rubber you want a solid secure mounted engine.The google custom search near the top of the page will give you lots of good info. There are things you can do if you have to mutch vibration. You may not have any. Get your build done first and go from there. Have fun,that is what is important. Good Luck!

Two words- Sprocket adapter. The 48 spoke rims complicate the rag joint installation. I can vouch for the 'Manic Mechanic' one, it works and looks great and is easy to install. It ain't cheap, though. (ouch)

BobbyT said:

Do some research! Do not use rubber you want a solid secure mounted engine.The google custom search near the top of the page will give you lots of good info. There are things you can do if you have to mutch vibration. You may not have any. Get your build done first and go from there. Have fun,that is what is important. Good Luck!

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I can vouch for a solid mounting, too. My bike has a smoothy from DAX on it, I haven't really noticed any vibration at all. No rubber nothin

Learned it right here, too.

You may hear otherwise but the aluminum frame has served me well, I have built three and helped on a fourth o.p. cruiser aluminum framed bike. They are all still solid with no vibration problems, as said above mount the engine solid to the frame. My first bike is almost 5 years old so the above method works.

My rims are the originals. I only have about 60 or 70 miles on them so can't guarantee they will hold up. They seem fine, so far. I dodge bumps, holes and curbs, though. I don't go very fast, either. I average about 18.
Now that I think about it, your rear hub may be a different size because mine is a coaster hub, which fits the MM large adapter. It has to fit the hub exactly or it won't clamp on right. No worries, they make different sizes if you need one.
The adapter makes sprocket alignment a snap, too. Mine was off a tad (just the first guess) and I just loosened it up and tapped it over with a rubber mallet.
The adapter automatically squares up the sprocket, no real run-out on any axis.
It's a nice improvement over a rag, and the sprocket is aluminum so it saves some weight.

Motojoe- Hello. My name's Trey, and I learned how to build gas-bikes here.
It may help you to take a look at my latest build. Searching: "29 inch Genesis Onex- 4 stroke" should get you there.
Good luck, and stay with it until you get what you want.