Originally Posted by
silver_ghost
Ultremos are classified as a performance/racing tire. The low weight and rolling resistance come at the expense of flat protection. Consider something from the Durano line, which are "training" tires. I commute with 28mm Duranos and find them to be a good compromise between speed and flat resistance.
This. The ultremos are great tyres, but they won't meet your criteria for punctures.