Continental Steher: 250gr (23mm).
Pros:
Great feel.
Perfect amount of rubber thickness for me. Felt solid when pulling Gs in turns
Great race tire for the price.
OK for daily training if you can afford to replace it if it flats.
Cons:
Quite a few random, unexplained flats. Like the tire was full when I loaded the bike on the car. Flat when I got home. I watched as once the tire "popped" as the bike was leaning against a wall. Weird.
Tires separated from the base tape after a few months. Not sure if that affected safety or performance.
Comments:
I used these as my training and rear race tire for 2 full seasons. I generally liked them.
Continental Sprinter: 260gr (22mm).
Pros:
This tire has a lot of rubber. It's thick.
Very little chance of flatting this.
GREAT for daily, worry-free training.
Great price.
Cons:
This tire has a lot of rubber.
So much rubber sometimes leads to "thread squirm" when pulling Gs in turns you can feel the rubber stretching laterally in a gummy kind of way. But, I'm a big guy stressing the tire a lot. Most won't feel that.
Heavy. It's not really a "track" tire. It's for the road to deal with debris.
Tires separated from the base tape after a few months. Not sure if that affected safety or performance.
Too heavy to put on race wheels, but many do.
Comments:
It's great if you ride a track that has lots of punctures due to debris.
Continental Sonderklasse:
Pros:
Very thin rubber. Feels good.
Cons:
Thin rubber is delicate.
Not for daily training.
Comments:
To me, this is a special event tire. Maybe indoors only on your race wheels.
Veloflex Record 19
Pros:
Good feel.
Nice amount of rubber.
Long lasting.
Great price if you find the right store.
Cons:
None from my point of view.
Comments:
I used one on my special race wheel for 3 years. No complaints. No flats. Held up perfectly.