* Czech cbank holds rates at historic low
* Analysts say crown weakness may limit cuts
* Crown <EURCZK=> little changed after decision
(Adds press conference details, context)
By Jana Mlcochova and Robert Mueller
PRAGUE, March 26 (Reuters) - The Czech central bank kept interest rates flat at a historic low as expected on Thursday and said a decline in economic growth and volatility in the crown created balanced risks for future rate moves.
The decision came before centre-right Prime Minister Mirek Topolanek stepped down following his cabinet's defeat in a no confidence vote earlier this week.
That has sparked a political crisis and slightly weakened the crown, the region's best performing currency.
In a unanimous vote, the bank left its main two-week repo rate at 1.75 percent, the lowest level among the main economies of emerging Europe and a quarter point premium to the euro zone.
Analysts had expected the decision -- 13 of 16 polled by Reuters had forecast rates on hold -- saying that despite a deteriorating economic picture, the crown's relative weakness against the euro would stay the bank's hand.
The crown <EURCZK=> was unchanged after the decision but later firmed on what some dealers said could be profit-taking on euro/Czech positions.
Central bank Governor Zdenek Tuma said the drop in Czech economic growth because of the external environment had been faster than forecast. He refused to make a prediction on the direction of rates but said there were a lot of uncertainties.
"The signals are either mixed or, if it is the exchange rate, for example, it is very volatile. At this point risks as for further developments appear relatively balanced," he said.
CROWN WEAKNESS
The crown has outperformed its regional peers by clawing back around 8 percent from a three-year low in February to trade almost flat this week.
It has lost 16.5 percent from a record high of 22.925 per euro hit last summer, falling less than the Polish zloty, the Hungarian forint and the Romanian leu. All the currencies were hit as sinking demand from the recession-stricken euro zone hammered manufacturing in the export-heavy region and prompted investors to dump assets.
The crown slid by 2 percent after Topolanek's fall this week but has since recovered, outperforming the forint which has lost 0.7 percent since Tuesday's no-confidence vote.
Some analysts said that deteriorating growth still underpinned the regional picture and would continue to weigh on the crown and its neighbours for some time to come.
That meant the central bank would still feel pressure not to cut rates much or keep them flat to avoid a currency weakening that would raise inflation pressures.
"Our conviction that crown will remain under pressure to weaken ... leads us to conclude that the space for further rate cuts is limited," Ceska Sporitelna said in a research note.
On Wednesday, Poland's central bank cut rates to a historic low of 3.75 percent as the country faces the prospect of undershooting the Finance Ministry's 2009 growth target of 1.5-2.0 percent.
And on Monday, Hungary left its key rate unchanged to keep financial stability after the forint hit record lows against the euro over the past month and its government fell as well.
Tuma said this week the economy should shrink by as much as 2 percent this year if the recession in Western Europe worsens.
He added that the crown was near the bank's forecast levels.
"Let's say (the crown exchange rate) is close to levels that we are counting on in our forecast. I do not want to speculate about what fundamental levels are," he said. (Reporting by Jana Mlcochova and Robert Mueller; Editing by Ruth Pitchford)