An average of four cyclists a day were fined in the first two months of new regulations aimed at making cycling and cyclists safer.
A total of 244 fines were issued in August and September.
Most fines were issued for breaking a red light.
Cyclists face €40 fines for a range of offences since last month.
As well as breaking a red light, the offences range from not having lights in the dark to cycling in a pedestrian area.
The offences also include failing to stop for a school warden sign, cycling without reasonable consideration, cycling beyond a stop line or barrier at a level crossing, lifting bridge or swing bridge when red lights are flashing.
Cyclists caught committing one of the seven offences will be asked to provide their address and they will be sent a fine in the post.
