I emailed Kenny Cummings from NYC Norton about thhese a while ago
He replied
"I am now the exclusive representative for Minnovation Racing. I can supply you with an absolutely stunning set of alloy yokes.
Available in 7", 7 3/8" (standard Norton), and 7 1/2" centers. 34.5mm or 35mm DIA bores. And other sizes up to 42MM as a special order.Supplied natural alloy finish. C/W with Timken bearings, alloy dust seal, drilled alloy top CTR nut, washers & all fasteners. Ready to fit.
$495.00
Add $55.00 for pinch-bolt top clamp option (to raise forks up proud of top)
See attached photos.
-Kenny Cummings
NYC Norton"