Good morning group. Been racing all my life and now my kids run ama . Awesome family fun. Building my sons first hybrid. 2004 yfz 450 with. 2000 yz250 engine. Swap looks really simple and minor fab work on the swinger and mounts to be made. Engine fits really good in the frame. My quest I need help in before I get to far ahead of my self is the front sprocket. It needs to be off set and having trouble finding what I need so I can keep the engine center in the frame. I know I read a few on here on there build and seen plenty of videos on YouTube but very few photos on the build itself. . Can any help direct on me in where to purchase one or what part number they purchased? I would greatly appreciate the help.