What are the key performance indicators that should be considered when selecting urban bike tires, and how do factors such as tire width, tread pattern, and casing construction influence the overall ride quality, durability, and puncture resistance of the tire? Specifically, how do tire manufacturers balance the trade-offs between rolling resistance, traction, and durability, and what are some emerging trends or technologies in urban tire design that are likely to impact the market in the near future? Additionally, are there any standardized testing protocols or methodologies that can be used to objectively evaluate the performance of different urban bike tires, and if so, how can consumers access and interpret the results of these tests to inform their purchasing decisions?