When Del Torro is walking back to the firehouse with his broken bike, the bike has a rigid fork vs the Rock Shox Judy suspension fork. The rigid fork would show damage better then the suspension for which doesn't bend as easily.
When Palermo is teaching Kelly ride, there is a shot of him riding a GT Zaskar hardtail mountain bike, not the full suspension Schwinn they are normally riding. This is due to the stunt rider Hans Rey being sponsored by GT Bicycles.