They are too familiar with the conditions
The final is shifted to Chinnaswamy Stadium from Wankhede, Mumbai due to drought. The SRH side is familiar with the conditions. The toss will play a key role in the match. Though the small boundary will be beneficial for both team.
We have to consider that SRH is bowling is far better than RCB unit. If Sunrisers Hyderabad wins the toss their decision of fielding will do most of their work as RCB batsmen have a deal against SRH bowlers so the target will not be massive.
If they bat first they have to set a big total so that will be easy for SRH bowlers to defend the target. The first target of SRH bowler will be Virat Kohli. If they get him early their half of the job will be done.
The Bangalore pitch, throughout the season, has been known as flat batting paradise. But in the last the weary pitch got slowed as batsmen were finding it difficult to strike the ball as it was coming late to their bat.