[Kevan]

I've used the 5262BLACK (4) 19.8x10 for 15.9-16.5 wheels on a couple of cars, the last of which was Slot Rally last week.  I predicted they'd be great for such purpose and wasn't disappointed.

Tonight I've prepped a pair of 5265BLACK (4) 19.5x13 for F1 wheels for my NSR F1

Truing these is a long winded exercise, NSR Ultragrips are a piece of cake in comparison, my Hudy truer couldn't cope but my RSM3 managed with 180 grit wet & dry with water brushed on the tyres.

They feel hard wearing like Supergrips but grippy like Ultragrips.  They also need careful handling when fitting on a wheel as they permanently stretch unlike the other rubber types from NSR that spring back.

I'll give the NSR F1 a run tomorrow to see if lap times compare to well treated NSR Ultras.

...one thing that is in their favour, although treating seems to help they don't really need any.