Lower rolling resistance (Crr)

---

<We all know that light travels faster than sound. That's why certain people appear bright until you hear them speak>

Force will be faster.

Thanks. How many miles do you put on the tires that are dedicated just for racing date before 'downgrade' them to training tires?

Depends on the tire and how rough the roads are.

Gp4000 and decent road? Just try to get a ballpark #.

The GP 4000s loses some of it's magical aero properties after a few hundred miles, but that will only affect you on the front wheel when you're racing. Those tires have been pretty durable for me--I use them for thousands of miles in training.