Continental

I bought these tires to replace the heavy knobbed stock tires on my spouse's new hybrid bike. This cut nearly a pound off the bike's weight, and the tires' smooth tread with higher TPI casing greatly improved the ride quality. These tires are very much like GP5000s so I would't expect them to last long on gravel/dirt paths or roads with lots of debris. However, they are a nice upgrade for casual pavement riding and offer reasonable value if you buy them on discount.

When you ride in Los Angeles, CA the City with the worst road in the United States of America you need nothing less than these tires unless you like changing tubes regularly.

I put 32's on my 700 cc road bike wheels and over 400 miles thus far over glass and other constant debris on the side of the road and constant breaks in the pavement no flats or damage to the tires.

These tires provide excellent grip on pavement and you feel like you can ride over anything on the road without concern. They also brake very well.

I do not ride in wet so can't tell you.

They are not good for dirt, off-road, or gravel.

They are heavy and not good for any kind of a race.

The have a thick protective layer like a car tire.

They have a very bright reflective sidewall you can see from far away.

They require some hand strength and time to install, but no where as bad as Schwalbe tires that I had to return they are so difficult to install.

I really don't want to have to change the tubes on these tires while out in field--it's hard to stuff the tube in because the tire does not have a lot of flexibility. Again, not as bad as Schwalbe.

In sum, get these tires if you don't like flats, don't want to use liners, and you ride on poor streets like I do. You won't worry about whats on the road with these tires.

Take time and install the tubes properly in a controlled environment and plan to not change a tube for a few years.

I hadn't been a fan of Continental's previous mtb tire options, but when a trusted friend tried these and was super happy with them, I knew I had to try them for myself...and I am sure glad I did. The Dubnital tires are super grippy for low-rolling resistance XC tires and are very light. They are the perfect combination of weight to grip ratio for me. I would recommend these to anyone looking to lighten their rolling mass and keep good grip for XC to light trail riding style!

This new Dubnital 2.4 Race Rapid has a stupid name. Continental's marketing team should be slapped with wet socks for moving away from the the logical Speed King, Race King, Mountain King, etc, nomenclature.

That said, this is an awesome update to the Race King. This new 2.4 Dub was 634g out of the box. Lighter than the last brown walled 2.2 Race Kings I bought which were both 650g and only measured 55mm. I'm using this new 2.4 Dub on the rear with a 2.3 Cross King on the front. After 100s of miles, they both measure 60mm at the widest point, the casing. The tread measures 59mm at the widest point. Been running 21psi for my 170lbs weight on 30mm i rims.

This tire rolls very fast and has great grip out back. Very consistent, and no surprises and hasn't flinched at the random rock garden or bad line choice while riding and racing.

The only small negative is that I see some slightly faster wear on the side knobs than I would like to see after only a couple hundred of miles. It's dry and loose here in central Oregon, but my last 2.2 Cross Kings wore like iron in comparison. Every recent Schwalbe I've tried wore even worse than this so it's not that bad in comparison. I'll try the Trinotal - another stupid name, next to see if it better fits late summer conditions here while still rolling fast.