This article tests the role of traffic fines as predictors of crashes suffered by Powered-Two-Wheeler (PTW) riders in Barcelona, the city with the highest number of PTWs per inhabitant in Europe. Results show that traffic fines can work as predictors of road crashes, although not all sanctions have the same importance. Penalties associated with serious offences as running red lights or alcohol violations, are strongly correlated with the number of accidents. Thus, we argue governments are losing a valuable opportunity when using traffic fines only for punitive objectives. Traffic fines offer rich information already collected that can easily serve to identify road users at risk. This result have direct implications on the design of safety campaigns