Considering that I will build the frame from scratch, I suppose that I'm faced with 3 choices:
1) build an asymmetric frame;
2) widen the space between the axle plates, and machine suitable spacers to make the tyre centerline coincident with the frame centerline;
3) use all the factory pieces the rim came with, and keep the wheel offsetted to the right.
I excluded option 1) almost immediately, I was evaluating option 2) but, considering the fact that I will be use a unit engine taken from a Yamaha Diversion 600, which used a 130 tyre, centering the wheel in the frame will shift the rear sprocket more towards the outside in respect fo the front sprocket, with more space to gain back to allign them from offsetting the engine/front sprocket, so maybe option no. 3) would be the best solution... the easiest for sure...
![whatever :roll:](./images/smilies/icon_rolleyes.gif)
So waddaya think? Is it an acceptable compromise?