The Commissioner for Wales' largest police force is to press ahead with plans for an inflation busting 7% increase in the amount that we have to pay for police services on top of our council tax.
People living in other parts of Wales look set to pay between 2.6% and nearly 4% more. Our political editor Adrian Masters reports.
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More than a thousand riders will be taking part in a series of events in and around the town.
Some warm spells of sunshine will develop, although scattered heavy and thundery showers are also expected during the afternoon.
A yellow 'be aware' warning has been issued by the Met Office for much of Wales.