What technology does it use in its construction? Michelin's City'J comes in a no frills Standard compound, Standard casing configuration, optimised for durability, longevity and grip. A strong reliable tyre in various wheel sizes aimed at the the younger riders, also available in an attractive whitewall option. What is the intended use? Better suited to the Urban enviroment, the City'J performs well in both wet and dry conditions, offering grip and good rolling efficiency across a range of paved surfaces and hardpack pathways. The robust casing provides a stable platform of security whilst out riding with the younger generation. Our verdict A great replacement or upgrade to the younger generatiosn bike, offering performance in all weathers and adding a classic style and look with available whitewall options.