While there’s no option of a front disc brake, Navi is equipped with 130mm drum brakes at both ends to do the braking duty. They work fine for Navi’s weight and performance but it would have been nice to have the CBS mechanism as well. Also, both tyres are of tubeless variety making them more resistant to punctures as they do not deflate instantly in case a nail gets in. This increases the safety aspect further.
Navi is capable of providing one of the fuel efficient rides in its class thanks to the HET technology. Real world mileage is well above 60 kmpl.