I did! But not because I hated them. (The Gravdal tires are actually on a different bike). The Top Contacts were on the Pinion Gearbox bike, and I pulled them off that bike because I had gotten my hands on a set of studded A10 in the 650b size and wanted to try the A10s. I sadly do not have enough N+1 to run all my tire options at the same time.

After the A10s, I managed to get a set of Nokian Stud 62 tires. They are wider, with fewer studs. They pretty much suck. They look good though, so I suppose one could consider them as tire-shaped objects .

The Stud 62s are 54 mm tires that measure out to 47 mm, and they are a perfect fit on the 600. They look great on the bike and perform well on streets covered by packed snow when the packing is deep enough and firm enough for the tread to get some bite. On ice you have to be on your game against front-end washouts, because 62 studs just are not nearly enough for that size tire. Those tires would shine with triple the stud count.

I plan to put the A10s back on. Haven't done it yet. These past few weeks haven't seen me out on the bike much. I need to turn that around.

FWIW, I'm happy to have the Top Contacts, but they will always be an N+1 option. First priority is to have at least one bike with a good studded option on it. The Top Contacts are no good on bare ice, and bare ice is too common where I live to not have a studded option readily at hand.

My neighbor got a set of 26er x 2.0 Gravdals for Christmas. Those are fantastic on his 26er bike. He let me take a short spin on it. I would throw money at QBP if they would do a 650b x 47 mm version.