For NASCAR why not have wheels that use a lever for fastening to the hub?

I’m not sure but I believe there are “stock” requirements built into the specifications for the cars to qualify. In other words, if you can’t walk into a showroom and buy a car with the “levered” hubs, the innovation can’t show up on the track.

Don’t think I’d want to have someone on the track bump into the lever at say 200 mph.

Yeah, well you beef them up a bit. There can’t be much more than the lugs that are stock on a NASCAR… right? And even those I doubt seriously are stock.

“Knock off hubs” were common on sports cars of the 50s and 60s.

At 200mph impact forces will rip wheels off no matter what. It’s not like gremlin fingers will show up to flip a little road bike lever on a racecar. Probably it would need to be a lever that’s hammered closed, and levered open.

NASCAR 5 second tire change It take 16 seconds or more to empty two cans of fuel.

I had a tire come off my car at 35 mph, I wouldn’t want a similar experience at 200 mph

Could, it would be much faster to install. As long as the wheel doesn’t fly off as it continues the race.

Not enough retentive force to overcome either spinning or lateral centrifugal force.

Here is a point I don’t think many people realize: When a tire is spinning, the top of the tire is going twice the speed of the vehicle and the tread comes to a complete stop when it contacts the pavement. The lug nuts aren’t subjected to the same forces, but they do slow down and speed up a great deal in relation to a motionless object not related to the vehicle.

Also not strong enough to withstand the torque of the engine.