I did the dishing check as if you were building a bicycle wheel and centering as if to use rim brakes. To do it, you'd need to either use different sized spokes, or adequately apply spacers to shift the wheel across as needed. I can't speak for the spacers, but the spokes themselves are equal lengths on both the left and right sides, which is typically how you would achieve it relative to the hub flanges (the part the spokes feed through). In the case of the CT125, it's 156.5mm spokes on the outside, 156mm spokes on the inside, equal on both sides. So it's not dished differently relative to the hub. This builds the strongest wheel, potentially at the expense of centering.
I then measured it for distance of rim relative to fender mount itself, assuming the fender is symmetrical.
- Clearance from the rim to left side fender mount was 28mm
- Clearance from rim to right fender mount was 25 mm
- Orientation is right side = brake lever side.
When photographed from approximately the same positions (as close to the boot as possible), there appears to be slightly less clearance on the right side, but it's very small. I positioned my finger below the tire lip to provide contrast against the rubber.
So the wheel appears to be 3mm shifted to the right (non-brake rotor side). Given the design of the wheel, using a slightly shorter set of spokes on the left side would be the only reasonable way to achieve the desired result, but would result in a slightly weaker wheel.
Stock tires. The difference is quite small.
