Replaced my bike's battery.

It's been 2 years owning this Yamaha FJR1300ABS, I have already replaced my tyres and it's time to replaced my battery because it is behaving strangely lately.
The battery cranks more times to start up the bike and the digital clock and trip meter resets by itself more often and finally the battery can't start the bike when the radiator fan is "ON".
All these symptoms indicating to me that the battery's life is at the end and needs to be replace as soon as possible.

I bought a Yamaha GS battery from Auto Machinery for $170 and installed it onto my bike on 23/10/2005. This is the only battery that is suitable for this bike due to the size and it also have a special auto bleeding valve build in. No other battery is suitable.