Hello sir, I just owned a new RE CL350, Is it OK to ride for a long run of 400 KMs in run-in period of engine

@SVP Hello sir, I just owned a new RE CL350, Is it OK to ride for a long run of 400 KMs in run-in period of engine.

Question asked from: http://www.carandbike.com/royal-enfield-bikes/classic-350