One of the biggest problems with the Yamaha MT-15 V2 is its limited range. The bike's range is only around 100 km, which is less than some of the other bikes in its class. Another issue is its lack of power. The MT-15 V2 has a relatively small engine, so it won't be able to reach top speeds as quickly as some of the other models. Additionally, the MT-15 V2 has a relatively low fuel efficiency, so it won't be able to travel as far on a single tank of gas as some of the other models in its class.