just seen on the Rowan website that they now produce a 125mm universal sidewheel. Two sizes of central hub available with inserts to adapt to various turrets. The description extract from the site ......
'Universal fitting compatible with almost any scope,
A system of locating jaws allows the wheel to be fitted
on to parallax adjustment knobs in 2 size ranges.
Size 1 - 22.5mm to 34.0mm diameter PA knob.
Size 2 - 32.0mm to 44.0mm diameter PA knob.
Option available for scopes with illuminated reticule controls. Please contact us.'
Here's the link........