My bareknuckle sadly can’t fit 28s in the rear, it rubbed so I ride 25s on that bike. Not a huge deal but I’d prefer 28s. I think that’s the future, data shows it’s rolling resistance is lower and it eats up road bumps better. Lot of bike frames out there simply can’t fit them, but I think that’s changing, least in the road cycling world, don’t know about track bikes.