Hello everyone, Royal enfield thunderbird twinspark is a good bike that I used ever. I love this bike look is very nice and attractive. this bike has a lot of comfort. the performance of the bike is also very good. if it comes to power the bike has displacement of 346cc. a very good performance we can expect. while ridding the bike has an average road grip.good suspension system, great handling and good braking system is also here. power and performance of the bike is ok but we cant expect mileage in this bike, and some heavy maintenance after a long ride. overall the bike is good for performance but if you want mileage I don’t recommend this