Would like you to consider a continuous tire pressure monitor for the Nireeka that will trend/log the front and rear tires. Once the sensors are tied to the app, the owner can set up some alarm points when the tires will need to be pumped up to the right pressure again. An example is the Fobo bike tire pressure sensors here: https://www.amazon.com/FOBO-FB1574-Bike-Black/dp/B00YCAVGMK/ref=sr_1_1?s=boost&srs=12034488011&ie=UTF8&qid=1523600911&sr=1-1&keywords=fobo+bike+tire
Having the tires at the right pressure range can make the ride more comfortable / pleasant. Not having the tire correctly pumped to the right pressure will make a significant difference in the amount of effort needed to pedal and move the bike.