I think that the voltmeter and the water temp are enough . I have the Revo voltmeter / water temp kit and it works great .
The voltmeter let me know if everything is working the way it is suppose to (piece of mind) , and the water temp also let me know how hot the engine is working , if it is ok or a little hot or if the temp is hot enough for the fan to start working , and also after the fan starts and stops again , on how fast the engine temp is getting down to a normal parameter , etc … very , very useful info .
For example , If I am stopped at a long intersection waiting for the green light , I can see the increase on the engine temp since the engine is idling at a stop , and once I start moving again , I can check how fast the temp goes down … I am so used to it that I wouldn`t want to ride without any of the two gauges .
The voltmeter let me know if everything is working the way it is suppose to (piece of mind) , and the water temp also let me know how hot the engine is working , if it is ok or a little hot or if the temp is hot enough for the fan to start working , and also after the fan starts and stops again , on how fast the engine temp is getting down to a normal parameter , etc … very , very useful info .
For example , If I am stopped at a long intersection waiting for the green light , I can see the increase on the engine temp since the engine is idling at a stop , and once I start moving again , I can check how fast the temp goes down … I am so used to it that I wouldn`t want to ride without any of the two gauges .