Several members have asked how I offset the motor on my fatty set-up. Here are some pics... I'm damn proud:

Right side of motor - 1 1/2" spacer added


Left side of motor - engine set outside NCY extension. Ground motor mount bushing to get offset as far right as possible. Still need to cut that blt length a little so there isn't a double nut!


1 1/2" spacers added to space exhaust out from engine


Bottom of shock - spacer in middle and hardned bolt through shock on outside of boss


Top of shock - Spacer added, hardened bolt, spacer in NCY shock bracket to avoid collapse


Current status. Notice the new hub cap I did today...


Most of the spacers and such were made from a spare stock tube from between the mtor mount bushings. It's a nice heavy wall tube and very adequate for this... S2 calculated I need a 1 1/4" offset for the rim I have. I'm offset 1 1/2" plus I put a .100 spacer behind the hub to through it further right. With my laser, I'm still off by .100-.150", but I've rode it for 50 miles now and I swear I can not tell turning difference either way. Turning is different with a "flat" profile tire, but there is no pulling or balance issues with the 1/8" off. Hope this helps... let me know if you need anything more!

Fucking awesome man but damn those NCY extension kits just don't look very safe. It's really thin where it meets the motor and although billet is strong, it ain't THAT strong.

Also, it looks like your NCY shock is offset at the bottom. Couldn't you just flip it 180 degrees and mount it to the engine casing like it should be without any spacers?

The picture might be a little distorted due to the angle, but the shock is straight up and down. I had it reversed at the bottom and mounted over the boss, but it actually kicked in about 1/8". I may go back to that though because it looked better and had no negative affect. I've never heard of an NCY extension breaking. I thought about adding a 1/4" steel stiffner on the inside though and may still do it.

Great write up and thanks for the help!!!

Great way to make it happen!!

SoAzRC, have you thought of taking the NYC stuff and permanently welding Al. in place of your steel spacers? Just a thought, just to make it a single piece now that you have all the dimensions figured out. Pretty good work though, I can appreciate that kind of thinking.

is that 3/5 wheel?

Just to add to this thread on how I found what size spacer I needed to offset my motor....I'm not to sure if it's accurate but it looks straightt to me.

I found dead center of my ruck and made sure it was balanced.. I used one of them laser shits from Sears:





shot it to the rear (double red lines are tire markings, single one is laser)





then I shifted the motor assembly as needed to find the center of the tire..I also noticed that the loop on the cross member could be also used as a centering mark. I measured as needed:





then cut the spacers. It was a 1.475 spacer that I needed..It may be different with yours depending on the offset of your wheel, etc,. I did not have to shave the left motor mount bushing..It was perfect. I did not take pics of the shock mount but it was similar to SoAzRC setup but I did not have to mount it on the outer of the motor..I actually need to either get a longer shock mount or make dog ears for the frame and weld them on (which I plan on doing)..The shock at the moment is resting on the rear frame.. As for the exhaust, I made my own bracket..I didn't want to use spacers,

Hub was a custom piece from TR member achidontcom, wheel off of ebay..

hopes this helps..

Just to clarify and confirm what tech 126 said, the reason my lower shock mount is "outside" of the case boss is my wheel's offset of 3.25". That 1/4" killed me. It made it so I didn't have to mod the oil fill, but the shock had to move out. I've made some improvements and will post when I get to indiana. The Hitman is on a trailer behind me right now!

a very helpful thread! thank you so much. i'm planning on doin this conversion in the next week. where can i get those motor mount spacers from?

I know it's off topic, but what kind of exhaust it on the green ruck?

eh did you dudes have to shave the front part of the extension off, to clear the front of the motor

Just a little update..

Like I stated earlier, everyone will need different spacers according to wheel and tire choice, and also wheel offset. It will also depend with the extension kit that your going to run..I'm currently running the NCY kit..

When I did my fatty rear, I did not have to space my shock as far right like SoAzRC due to my tire choice. With it being so stretched, I had a lot of clearance. Now if I did run the same tire as he did, then that would be a different story..

I ran into problems when I installed my rear shock..It was hitting the frame.

I've also noticed this problems with other members rides also.

After some PM's, Mr. Sanjuro came to the rescue..All he did was ask some simple questions and also for some pics of my current setup..With just that info, he was able to tell me that his rear shock mount would work. Here's a side by side comparison of the NCY and Sj shock mount..





I was going to weld some dog ears to the frame but decided not to just in case the ruck goes back to stock for some odd reason.

Heres some before and after pics:





















In the last pic, I had to level the bike off to make sure that the shock was sitting vertical. I then cut the needed spacer and added washers to fine tune it.

As you can see, the shock now clears the frame.The shock sits more vertical also. It raised the bike just a little. I haven't had a chance to ride the ruck yet due to my busy schedule. If the weather holds up, I'll take her for a spin this weekend.

Hope this post helps you guys that is planning on doing your own home brew fatty..It is possible to use your existing mount, but you need to do your homework..

Your other option also it to purchase kits that have been already put together and won't have to deal with the headache. There are some members here on the board that make them..Just search!!!

Choose your poison.

Nice work tech

clean