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Howdy! So I bought the G when I was 17 (November 2014), just turned 23 last December. I’ve had quite a few piles you could loosely call motorcycles (15 other motorcycles, dirt bikes, scooters, and 1 bicycle with a motor contraption) since around age 14. My G is my favorite so far and one of two bikes I plan on keeping, the rest come and go. I bought the G with a bad connecting rod bearing in high school and threw a used crank with rods on it in after I cleaned all the bearing chips out and rebuilt it before I knew anything about motorcycle engine work and machining. It ran pretty well considering the carbs were dumping gas in at all parts throttle. (Didn’t know 10% of carburetor theory and practice that I do now.) I did the usual “tune up” stuff to it including a new ignition from crank to head by Dynatek which helped burn the copious amounts of extra gas haha. So fast forward to September 2017 where one of the transmission bearings (forward set of gears, outboard bearing) that was damaged by the original bad crank finally had enough and let go into the oil pan. Pulled that motor out of the frame (again) and put it aside in my garage and fixed and built a few of my other bikes and eventually sold. Out of all of these bikes I haven’t found one yet as comfortable, reliable (save the o.g. 673), sharp handling, and overall character of my G, so last April I did some reading and learned more about blandits and oil burners and really loved the idea of having a burner in my frame. I figure it’s about the same mass and cog as my air cooled (loosely) so my handing should stay where I like it, still be just as comfortable, and have a much needed kick in the pants. I read Wraith’s GSX1100F swapped GS550 so I figured to hell with it I’m going to try it. So Mid April 2019 I found a smashed B12 (decimated the front fork and wheel, everything else is somehow perfect) and brought it home. February 1st 2020 I got the B12 to run (somehow with only the lower halves of the carbs), tested the transmission (all five gears don’t pop out without a load so that’s something I guess? Hard to tell without it in the bike or splitting the cases so we will see once it gets going down the road.) February 3rd I pulled all the wiring off the B12 frame, pulled the oil cooler, oil filter, carbs, muffler, header, and frame member. February 4th I pulled the motor out, cleaned off most of the grease and oil off the outside, and placed it next to my g. February 5th I fixed my lathe and helped a buddy with his car, February 6th I checked the valve clearances and pulled as much stuff out of the way on the g (removed the air box, moved some wiring, and pulled the swing arm, rear brake system, and shocks out) and realized how wide the swing arm is. It’s about 12 inches! Most swing arms for other bikes aren’t even close at around 9 to 10 inch. Does anyone have any ideas for the swing arm? It has these threaded pivot plug things that thread into the frame and put preload on the tapered roller bearings in the swing arm. With my lathe I should be able to spin up some adapters but don’t like the idea of having super long adapters with all the forces a swing arm and frame put on each other so I’d like to get one that fits as close as possible. I really want to keep the twin shocks (no other reason than the aesthetics to me, and it worked well enough for me, plus I don’t know how I feel about adding mono linkage to this frame.) so my stock swing arm has a length of 18 11/16”, a pivot width of 12” and has twin shocks, is there any aluminum ones out there that are close? Will a 1981 Gs650e swing arm fit? Sorry about the naïve questions in advance, Thanks fellas.