Royal enfield clasicc 350 has a single cylinder. 4 stroke . Twinspark 350cc engine powers.19.8bhp at 5250rpm and 28nm at 4000rpm. this is a very heavy muscle bike. u can ride this bike in any bad road or high mountain. because of his engine power is to strong. u can get upto 40 to 45 mileage per litre. I have also one 350 clasicc from past 3 years. and I experienced a lot. with my 350 classic. it gives u the good felling so go n jst feel the ride.